CN201008124Y - Brushless straight-through permanent-magnet DC electric machine - Google Patents
Brushless straight-through permanent-magnet DC electric machine Download PDFInfo
- Publication number
- CN201008124Y CN201008124Y CNU2007200041952U CN200720004195U CN201008124Y CN 201008124 Y CN201008124 Y CN 201008124Y CN U2007200041952 U CNU2007200041952 U CN U2007200041952U CN 200720004195 U CN200720004195 U CN 200720004195U CN 201008124 Y CN201008124 Y CN 201008124Y
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- Prior art keywords
- permanent magnet
- rotor
- stator
- brushless
- silicon steel
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Abstract
The utility model relates to a brushless direct current motor with a permanent rotor, which also can be changed into a generator if being used reversely. The structure of the utility model is that a rotor made from soft iron material is provided with at least electrodes for arranging winding, the six windings are connected in series, the axial section of the stator is of a structure that two E-shaped parts combined with each other, clearance of the silicon steel base for fixing convex part of the bearing and rotor should be equal with or smaller than the smallest clearance of the stator, the rotor is evenly fixed with four permanent bodies which are of radiation form, the same electrode of every permanent body points to the rotor axial centre and is fixed at the same silicon steel base. As a best instance of the utility model, the stator is provided with six electrodes for arranging windings.
Description
Technical field
The utility model relates to a kind of brushless direct current machine that has permanent magnet rotor, and the reverse use of this motor simultaneously can become a kind of generator, and promptly with the power drive rotor, its stator winding can have electric current output.Comprise in the utility model: shell, stator winding and be fixed in epitrochanterian permanent magnet.
Background technology
For overcoming the deficiency of the commutating brush that direct current machine adopts, the existing direct current machine that constitutes with permanent magnet need replace brush-commutated device with the circuit of a location and commutation.Volume is little, energy conversion efficiency is higher though this class motor has, and the advantage that speed governing is simple, speed ratio is big, and its voltage that is suitable for is lower, and power can not be very big.In addition, this class electric machine structure is comparatively complicated, and commutating circuit is easy to damage.The common deficiency that the prior art direct current machine exists is to be used as motor, and generally is directly to be used as generator.
Summary of the invention
The utility model provides a kind of can overcome the prior art deficiency, does not need commutating circuit, and relative efficiency is higher, structure is more simple, production cost is lower than prior art, can be used as motor, also can be as generator, novel brushless through type permanent magnet DC motor.
Structure of the present utility model is: the stator made from soft iron material is provided with at least two magnetic poles that are used to be provided with winding, and these six windings are connected mutually, the axial section of stator is the structure that two E types make up in opposite directions, wherein be used for fixing gap between the silicon steel seat of fixed permanent magnet of the bossing of bearing and rotor and should be equal to or less than minimum clearance between rotor and stator, on rotor, evenly be set with four permanent magnets that distribute radially, the same magnetic pole of each permanent magnet points to rotor axis, and each permanent magnet is fixed on the same silicon steel seat.As most preferred embodiment of the present utility model, its stator is provided with six magnetic poles that are used to be provided with winding.
Being positioned at the part of each permanent magnet except that stiff end on the rotor of the present invention can be nonmetallic materials, also can be resin material, perhaps is plastics.
The stationary part of motor of the present utility model is made with silicon steel material.
The permanent magnet of rotor of the present utility model preferably adopts ferromagnetic material, as the permanent magnetic material of samarium-cobalt alloy.
The utility model has following advantage:
1, brushless does not also have commutating circuit, so its structure is more simple than prior art, works more reliable and failure rate is low.
Therefore 2, can know because of brushless and be used for various explosion-proof, inflammable workplaces.
3, its energy conversion efficiency is higher.
4, each winding by stator connects with series system, therefore goes for higher operating voltage, also can be used for heavy-duty motor.
5, starting performance of the present utility model is fabulous, the starting drive that need not to add.
6, can directly be used as generator.
7, because the utility model can directly be made generator to be used, so it can be used on the vehicles such as automobile, steamer, and the kinetic energy during with descending or brake is converted to power storage.
8, can energy savings.
Description of drawings
Accompanying drawing 1 is the utility model axial section schematic diagram.Accompanying drawing 2 is that the A-A of Fig. 1 is to generalized section.Accompanying drawing 3 is that the B-B of Fig. 1 is to generalized section.
In the accompanying drawings: 1 is motor shaft, 2 is casing, and 3 is stator, and 4 is stator winding, 5 is epitrochanterian permanent magnet, 6 for being used for fixing the silicon steel seat of permanent magnet 5 on the rotor, 7 for being positioned at the part except that stiff end between each permanent magnet on the rotor, and 8 for being used to be provided with the magnetic pole of winding, 9 is key, 10 for stator is used to be provided with the bossing of bearing, and 11 is the gap between stator and rotor, and 12 is the gap of 6 of the bossing 10 of stator and rotor silicon steel seats.Wherein constitute rotor by permanent magnet 5, silicon steel seat 6 and 7.
Embodiment
Accompanying drawing is an embodiment of the present utility model, explains orally below in conjunction with accompanying drawing:
Referring to Fig. 1, the stators 3 for making in the shell of the present utility model 2 by silicon steel material, axle 1 is provided with rotor, and rotor is made of permanent magnet 5, silicon steel seat 6 and the part 7 that is sandwiched between each permanent magnet, referring to Fig. 3.As seen from Figure 1, stator of the present utility model section vertically is the structure that two E types make up in opposite directions, the part that is used for fixing bearing that its middle part 10 of protruding is made for silicon steel material, the gap 12 that the silicon steel seat of fixing on this part of motor assembling back and armature spindle is 6 preferably is equal to or less than the minimum clearance 11 between rotor and stator.Be also shown in by Fig. 1 and Fig. 3, be evenly distributed with four permanent magnets 5 on the rotor of the present utility model, each permanent magnet is individually fixed in axle on 1 on the set silicon steel seat 6, and silicon steel seat 6 connects with key 9 with spool 1.Part 7 between each permanent magnet of rotor is a resin material.7 nonmetallic materials that also can adopt other in practical structure are as plastics etc.The N utmost point that is also shown in each permanent magnet 5 in the embodiment that accompanying drawing provides is towards the stator direction, and the S utmost point points to armature spindle.As seen from Figure 2, evenly be provided with 6 magnetic poles that are used to be provided with winding coil on the stator of the present utility model, just among the figure with the numeral of zone circle 1., 2., 3., 4., 5., 6 projections 6. marking, these magnetic poles Shang Suo Chan around each coil 8 connect successively, and each winding coil De Chan is identical around direction.
By illustrated embodiment as seen, because part 7 is the nonmetallic materials of magnetic non-conductor between each fixing on rotor permanent magnet, so the magnetic line of force of the permanent magnet S utmost point and N interpolar is difficult to pass.And the silicon steel seat 6 of fixed permanent magnet 5, and the good conductor that is magnetic with the stator that silicon steel material is made, therefore the magnetic line of force will be mainly gap 12 closures by 8 of the bossing 10 in the middle of the gap between rotor and stator 11, stator and the stator and rotor silicon steel seats, simultaneously because very little of gap 11 and 12, so its leakage field can be very little.Like this N of the rotor permanent magnet utmost point and stator corresponding 1. to 6. between magnetic pole and the S utmost point of rotor, 6 of silicon steel seats can form closed magnetic loop.Winding coil by galvanic situation under, epitrochanterian permanent magnet can rotate work done by the direction of left hand rule under the effect of magnetic pole of the stator, realize the function of motor, and its initial rotation is very easy to realize, that is to say that its starting bosom can be very good.Otherwise when masterpiece was used for rotor and makes it to rotate outside, each winding coil promptly can cutting magnetic line, produces induced current by the right-hand rule, realizes the function of generator.
Because stator coil of the present utility model is an arranged in series, therefore its anti-superpotential numerical value can be bigger, can be more safer than prior motor, the utility model not only can be used in low power occasion simultaneously, and can be used as heavy-duty motor, can also use as existing mechanism of power generation excitation electromotor.In addition, because of the utility model without any additional circuit and device, so can not produce additional energy consumption, so can be more energy-conservation than prior art.Because therefore the utility model brushless can not produce spark when operation, therefore more suitable to use in inflammable and explosive environment.Because of the utility model can directly be used as generator, therefore be used on the vehicles such as automobile, steamer and can make vehicle more energy-conservation fuel-efficient, more can reduce the discharging of vehicles combustion products such as vehicle.
Claims (7)
1. brushless through type permanent magnet DC motor, comprise: stator winding, be fixed in epitrochanterian permanent magnet, it is characterized in that being provided with at least two magnetic poles that are used to be provided with winding with the stator that soft iron material is made, and these six windings are connected mutually, the axial section of stator is the structure that two E types make up in opposite directions, wherein be used for fixing gap between the silicon steel seat of fixed permanent magnet of the bossing of bearing and rotor and be equal to or less than minimum clearance between rotor and stator, on rotor, evenly be set with four permanent magnets that distribute radially, the same magnetic pole of each permanent magnet points to rotor axis, and each permanent magnet is fixed on the silicon steel seat.
2. brushless through type permanent magnet DC motor according to claim 1 is characterized in that stator is provided with six magnetic poles that are used to be provided with winding.
3. brushless through type permanent magnet DC motor according to claim 2, it is characterized in that being positioned on the rotor part of each permanent magnet except that stiff end is nonmetallic materials.
4. brushless through type permanent magnet DC motor according to claim 3, it is characterized in that being positioned on the rotor part of each permanent magnet except that stiff end is resin material.
5. brushless through type permanent magnet DC motor according to claim 3, it is characterized in that being positioned on the rotor part of each permanent magnet except that stiff end is plastics.
6. according to the described arbitrary brushless through type permanent magnet DC motor of claim 1 to 5, it is characterized in that the stationary part of motor is made with silicon steel material.
7. brushless through type permanent magnet DC motor according to claim 6, the permanent magnet that it is characterized in that rotor is a ferromagnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200041952U CN201008124Y (en) | 2007-01-31 | 2007-01-31 | Brushless straight-through permanent-magnet DC electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200041952U CN201008124Y (en) | 2007-01-31 | 2007-01-31 | Brushless straight-through permanent-magnet DC electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008124Y true CN201008124Y (en) | 2008-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200041952U Expired - Fee Related CN201008124Y (en) | 2007-01-31 | 2007-01-31 | Brushless straight-through permanent-magnet DC electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008124Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594070A (en) * | 2012-03-30 | 2012-07-18 | 陈奚平 | Self-coupling type permanent magnet doubly salient motor |
| CN111987823A (en) * | 2020-08-07 | 2020-11-24 | 杨螓 | Super permanent magnet motor device |
-
2007
- 2007-01-31 CN CNU2007200041952U patent/CN201008124Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594070A (en) * | 2012-03-30 | 2012-07-18 | 陈奚平 | Self-coupling type permanent magnet doubly salient motor |
| CN102594070B (en) * | 2012-03-30 | 2014-08-13 | 陈奚平 | Self-coupling type permanent magnet doubly salient motor |
| CN111987823A (en) * | 2020-08-07 | 2020-11-24 | 杨螓 | Super permanent magnet motor device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 Termination date: 20100131 |