CN202616898U - A DC-motor-used rotor assembly - Google Patents
A DC-motor-used rotor assembly Download PDFInfo
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- CN202616898U CN202616898U CN 201220217052 CN201220217052U CN202616898U CN 202616898 U CN202616898 U CN 202616898U CN 201220217052 CN201220217052 CN 201220217052 CN 201220217052 U CN201220217052 U CN 201220217052U CN 202616898 U CN202616898 U CN 202616898U
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- rotor assembly
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Abstract
The utility model relates to a DC-motor-used rotor assembly used for a DC motor just requiring single-direction rotation. The rotor assembly comprises a rotating shaft, a rotor lamination fixed on the rotating shaft, armature windings embedded in coiling grooves of the rotor lamination, and a commutator fixed on the rotating shaft. Each armature winding in each coiling groove of the rotor lamination comprises N winding components and each winding component comprises multi-turns coils, wherein the integer N is not more than 6 but not less than 2. The N winding components in the same side of a same coiling groove of the rotor lamination are successively and electrically connected with a corresponding adjacent commutator segment on the commutator, respectively. And in a direction against the rotating direction of the rotor assembly, the commutation angles of the N winding components are successively reduced while the numbers of coil turns of the N winding components are successively reduced. The rotor assembly has advantages of low cost, high watt density, energy conservation and environmental friendliness, relatively high efficiency, and little size.
Description
[
Technical field]
The utility model includes the DC motor or the generator of mechanical commutator, and particularly relating to armature winding is DC motor characteristic, that drive food processor, relates in particular to the rotor assembly that is used on the DC motor.
[
Background technology]
The motor that prior art is used to drive food processor comprises the two poles of the earth series machine, and its armature winding is the conventional folded distributed winding of list, each the coil part equal turn numbers in the rotor core groove; After said series machine energising, electric current flows into the stator excitation winding and produces magnetic field, and flows into armature winding through brush, commutator, and rotor assembly will receive the electromagnetic force effect in magnetic field that the stator excitation winding produces and rotate at this moment.This series machine is applied to Mixmaster has following weak point:
One, the intrinsic mechanical property of series machine is softer, and Mixmaster will be to use series machine to drive as being used to stir food, and noise can be bigger;
Two, series machine efficient is lower;
Three, the volumetric power density of series machine is lower; Reach big power output, need to increase volume, also can increase, correspondingly increased the cost of entire product with the food processor volume of its driving of applying; Particularly hand electric stirs the product of type processed food, when such small product size is big, causes the user to hold comfort level and reduces, and sensation is heavy and make us unhappy;
Four, the conventional armature winding structure of prior art is when big and rotating speed is higher in transform and its application in electromotor load power, for improve in the motor commutation process spark with alleviate the electromagnetic interference that motor is produced in commutation process, must strengthen the switching-over angle of motor; And the switching-over angle strengthens the back electromotive force that can reduce motor, or for improve the electromagnetic interference that motor produces in commutation process, must increase electronic components such as filter capacitor and inductance, and this will cause increasing product cost.
[
The utility model content]
The technical problem that the utility model will solve is to avoid the weak point of above-mentioned prior art and a kind of rotor assembly that is used on the DC motor is provided, and has that cost is low, power density is high, energy-conserving and environment-protective, advantage such as efficient is higher and volume is little; Advantages such as the DC motor that this rotor assembly is housed has that cost is low, power density is high, energy-conserving and environment-protective, efficient is higher, volume is little and noise is little, and can effectively improve the spark that DC motor produces and reduce the electromagnetic interference that DC motor produces in commutation process in commutation process.
The technical scheme that the utility model solve the technical problem employing is:
A kind of rotor assembly that is used on the DC motor is provided; Be used to only require the DC motor of folk prescription, comprise rotating shaft, be fixed on rotor pack in this rotating shaft, embed the armature winding in each winding slot of said rotor pack and be fixed on the commutator in the said rotating shaft to rotation; Armature winding in each winding slot of said rotor pack includes N the element of winding; This N element of winding includes multiturn coil, 6 >=N >=2 wherein, and be integer; Being positioned at the same winding slot of said rotor pack is connected electrically in respectively on each corresponding adjacent commutator segment of said commutator with N the element of winding on one side successively; And against the rotation direction of said rotor assembly, the switching-over angle of this N element of winding reduces successively, and the coil turn separately of this N element of winding also reduces successively; Just, in the DC motor rotary course, vary in size according to the switching-over angle of each element of winding in the same winding slot of said rotor pack and to design the coil turn separately of each element of winding; For the maximum relatively element of winding of switching-over angle, its coil turn design is maximum relatively; And for the minimum relatively element of winding of switching-over angle, its coil turn design is minimum relatively.The quantity of the commutator segment of said commutator be said rotor pack winding slot quantity N doubly.
The said N element of winding ratio that reduces successively of coil turn separately is 5%～70%, and the mode of round off makes coil turn round.Further, the said N element of winding ratio that reduces successively of coil turn separately is 20%～40%, and the mode of round off makes coil turn round.
The overall diameter of said rotor pack is 23.5～25.0 millimeters; Said rotor pack surface has 12 winding slots to be uniformly distributed in its circumferencial direction of 360 °; The width of rebate of each winding slot is 1.2～2.2 millimeters, and tooth portion width is 1.2～2.0 millimeters, and the yoke width is 2.5～5.0 millimeters.
Like N=3, the armature winding in each winding slot of promptly said rotor pack includes 3 elements of winding.
Compare with prior art, the beneficial effect that the utility model is used for the rotor assembly on the DC motor is:
1, the armature winding of the utility model rotor assembly adopts a kind of special winding structure, and promptly all each armature winding include N the element of winding, 6 >=N >=2 wherein, and be integer, and this N element of winding coil turn is inequality separately; The same winding slot that is positioned at said rotor pack is connected electrically in respectively on each corresponding adjacent commutator segment of said commutator with N the element of winding on one side successively; And against the rotation direction of said rotor assembly; Order so that the switching-over angle of this N element of winding reduces is successively arranged this N element of winding, and the coil turn separately of this N element of winding is also reduced successively.Through adopting this special winding structure; When the utility model rotor assembly is used for DC motor; During the DC motor rotation, be in the element of winding that the switching-over angle reduces, because of the also corresponding minimizing of its coil turn; Thereby its electromotive force of inducting in it when becoming commutation element also reduces; Spark under the brush has also alleviated naturally, can improve the spark that DC motor produces so effectively and reduce the electromagnetic interference that DC motor produces in commutation process in commutation process, and that the back-emf of DC motor reduces is minimum; And can effectively reduce electronic components such as the used filter capacitor of said DC motor, inductance, reduce the cost of whole DC motor.
2, the utility model rotor assembly is used for DC motor, because the intrinsic mechanical characteristic of DC motor is harder, is applied to Mixmaster as stirring on the series products, and noise is little, and it is effective to stir food;
3, said rotor assembly is used for DC motor, and the efficient of DC motor also can be higher;
4, power density height and volume are little;
In sum, the utility model rotor assembly have that cost is low, power density is high, energy-conserving and environment-protective, advantage such as efficient is higher and volume is little; Advantages such as the DC motor that this rotor assembly is housed has that cost is low, power density is high, energy-conserving and environment-protective, efficient is higher, volume is little and noise is little, and can effectively improve the spark that DC motor produces and reduce the electromagnetic interference that DC motor produces in commutation process in commutation process.
[
Description of drawings]
Fig. 1 is the main sketch map of looking of orthographic projection that the utility model is used for the rotor assembly on the DC motor, has part to analyse and observe among the figure;
Fig. 2 is the axonometric projection sketch map after rotor assembly shown in Figure 1 decomposes;
Fig. 3 is the cross section E-E sketch map of rotor assembly shown in Figure 1, for figure clear, the cross section of each parts hatching that do not draw among the figure;
Fig. 4 is the main sketch map of looking of orthographic projection of the rotor pack 320 of said rotor assembly;
Fig. 5 is the main sketch map of looking of orthographic projection of the single element of winding of the armature winding of said rotor assembly;
Fig. 6 is the expansion sketch map of the armature winding of one of said rotor assembly embodiment, and this armature winding is lap winding, and is the right lateral winding; The wiring point that alphabetical A among the figure and B represent DC power supply, letter C are represented the direction of this permanent magnet direct current motor rotation, the rotation direction of rotor assembly just, a pair of permanent magnet 200 and a pair of brush 810 of the DC motor that drawn among the figure;
Fig. 7 is the expansion sketch map of two the armature winding of said rotor assembly embodiment, and this armature winding is wave winding, and is the right lateral winding; The wiring point that alphabetical A among the figure and B represent DC power supply, letter C are represented the direction of this permanent magnet direct current motor rotation, the rotation direction of rotor assembly just, the two pairs of permanent magnets 200 and a pair of brush 810 of the DC motor that drawn among the figure;
Fig. 8 is the expansion sketch map of three the armature winding of said rotor assembly embodiment, and this armature winding is lap winding, and is the left lateral winding; The wiring point that alphabetical A among the figure and B represent DC power supply, letter C are represented the direction of this permanent magnet direct current motor rotation, the rotation direction of rotor assembly just, a pair of permanent magnet 200 and a pair of brush 810 of the DC motor that drawn among the figure.
[embodiment]
Below in conjunction with each accompanying drawing the utility model is done further explain.
Referring to Fig. 1 to Fig. 8; A kind of rotor assembly 300 that is used on the DC motor; Be used to only require the DC motor of folk prescription, comprise rotating shaft 310, be fixed on rotor pack 320 in this rotating shaft 310, embed the armature winding 330 in each winding slot 321 of said rotor pack 320 and be fixed on the commutator 340 in the said rotating shaft 310 to rotation; Armature winding 330 in each winding slot 321 of said rotor pack 320 includes N element of winding 330-1,330-2 ..., 330-N; This N element of winding 330-1,330-2 ..., 330-N includes multiturn coil; 6 >=N >=2 wherein, and be integer, be positioned at said rotor pack 320 same winding slots 321 with N element of winding 330-1 on one side, 330-2;, 330-N is connected electrically in respectively on each corresponding adjacent commutator segment 341 of said commutator 340 successively, and against the rotation direction of said rotor assembly 300, this N element of winding 330-1; 330-2 ..., the switching-over angle of 330-N reduces successively, this N element of winding 330-1; 330-2 ..., the coil turn separately of 330-N also reduces successively; Just, in the DC motor rotary course, according to each element of winding 330-1 in the said rotor pack 320 same winding slots 321; 330-2 ..., the switching-over angle of 330-N varies in size and designs each element of winding 330-1; 330-2 ..., the coil turn separately of 330-N; For the maximum relatively element of winding 330-1 of switching-over angle, its coil turn design is maximum relatively; And for the minimum relatively element of winding 330-N of switching-over angle, its coil turn design is minimum relatively.The quantity of the commutator segment 341 of said commutator 340 be said rotor pack 320 winding slot 321 quantity N doubly.
Said N element of winding 330-1,330-2 ..., the 330-N ratio that reduces successively of coil turn separately is 5%～70%, and the mode of round off makes coil turn round.Further, said N element of winding 330-1,330-2 ..., the 330-N ratio that reduces successively of coil turn separately is 20%～40%, and the mode of round off makes coil turn round.
Referring to Fig. 1 to Fig. 4, the overall diameter D of said rotor pack 320
2It is 23.5～25.0 millimeters; Said rotor pack 320 surfaces have 12 winding slots 321 to be uniformly distributed in its circumferencial direction of 360 °; The width of rebate t of each winding slot 321
1Be 1.2～2.2 millimeters, the width t of tooth portion
2Be 1.2～2.0 millimeters, yoke width t
3Be 2.5～5.0 millimeters.
Referring to Fig. 6 to Fig. 8, like N=3, the armature winding 330 in each winding slot 321 of promptly said rotor pack 320 includes 3 element of winding 330-1,330-2,330-3.
Referring to Fig. 2, label is 351 and 352 to be respectively forward and backward insulating end plate; Label be 360 be insulation tank paper; Label be 370 be the insulation tank contract.Referring to Fig. 6 and Fig. 7, label is 335 each element of winding 330-1,330-2 ..., the effective edge of 330-N in said rotor pack 320 same winding slots 321; Label be 810 be brush.
Embodiment one:
Referring to Fig. 1 to Fig. 6; A kind of rotor assembly 300 that is used on the DC motor; Be used to only require the DC motor of folk prescription, comprise rotating shaft 310, be fixed on rotor pack 320 in this rotating shaft 310, embed the armature winding 330 in each winding slot 321 of said rotor pack 320 and be fixed on the commutator 340 in the said rotating shaft 310 to rotation.
The overall diameter D of said rotor pack 320
2It is 23.5～25.0 millimeters; Said rotor pack 320 surfaces have 12 winding slots 321 to be uniformly distributed in its circumferencial direction of 360 °; The width of rebate t of each winding slot 321
1Be 1.2～2.2 millimeters, the width t of tooth portion
2Be 1.2～2.0 millimeters, yoke width t
3Be 2.5～5.0 millimeters.
Referring to Fig. 1 to Fig. 6, the armature winding 330 in each winding slot 321 of said rotor pack 320 includes 3 element of winding 330-1,330-2; 330-3 is positioned at said rotor pack 320 same winding slots 321 with 3 element of winding 330-1 on one side, 330-2; 330-3 is connected electrically in respectively on each corresponding adjacent commutator segment 341 of said commutator 340 successively, has 36 commutator segments 341 on the commutator 340, and against the rotation direction C of said rotor assembly 300; These 3 element of winding 330-1,330-2, the switching-over angle of 330-3 reduces successively; These 3 element of winding 330-1,330-2, the coil turn separately of 330-3 also reduce successively.Each 3 element of winding 330-1 in each winding slot 321 of the said rotor pack 320 of present embodiment; 330-2; 330-3 adopts the mode of lap winding to arrange, and adopts right lateral winding mode to be connected electrically in successively respectively on each adjacent commutator segment 341 of said commutator 340 correspondences.In Fig. 6, can find out; The rotation direction C of the direction of winding of armature winding 330 and said rotor assembly 300 is opposite, is that the rotation direction C against said rotor assembly 300 winds the line, and earlier element of winding 330-1 is wound the line; Its coil turn is maximum; To element of winding 330-2 coiling, the coil turn of its coil ratio element of winding 330-1 is few, at last element of winding 330-3 is wound the line again; Its coil turn lacks than the coil turn of element of winding 330-2 again, and promptly the coil turn of element of winding 330-3 is minimum.
Referring to Fig. 3 and Fig. 6,3 element of winding 330-1,330-2,330-3 embeds same one side of No. 1 and No. 6 winding slot 321 of rotor pack 320, and its each effective edge 335 residing position in breath magnetic field is identical; When element of winding 330-1 contact brush 810 commutates, this moment element of winding 330-2 and element of winding 330-3 not switching-over temporarily; Along with the rotation of rotor assembly 300, element of winding 330-2 contact brush 810 begins switching-over, and this moment, element of winding 330-1 was passed through adjacent No. 1 commutator segment 341 and No. 2 commutator segment 341 short circuits of commutator 340 correspondences by brush 810; Continuation rotation along with rotor assembly 300; Element of winding 330-3 contact brush 810 begins switching-over, and this moment, element of winding 330-1 and element of winding 330-2 were passed through adjacent 341, No. 2 commutator segments 341 of No. 1 commutator segment and No. 3 commutator segment 341 short circuits of commutator 340 correspondences by brush 810 simultaneously; Continuation rotation along with rotor assembly 300; Element of winding 330-1 finishes switching-over, and this moment, element of winding 330-2 and element of winding 330-3 were passed through adjacent 341, No. 3 commutator segments 341 of No. 2 commutator segments of commutator 340 correspondences and No. 4 commutator segment 341 short circuits simultaneously by brush 810; Along with the lasting rotation of rotor assembly 300, element of winding 330-2 and element of winding 330-3 finish switching-over in succession.At 3 element of winding 330-1,330-2, in the commutation process of 330-3,3 element of winding 330-1,330-2, the switching-over angle of 330-3 varies in size; Therefore can be according to 3 element of winding 330-1,330-2, the switching-over angle of 330-3 varies in size and designs 3 element of winding 330-1,330-2, the coil turn separately of 330-3; For the maximum relatively element of winding 330-1 of switching-over angle, its coil turn design is maximum relatively; And for the minimum relatively element of winding 330-3 of switching-over angle, its coil turn design is minimum relatively.
The rotor assembly 300 of present embodiment is used for DC motor, and permanent magnet 200 quantity of this DC motor are total a pair of.
Embodiment two:
Referring to Fig. 1 and Fig. 7, the rotor assembly 300 of present embodiment is basic identical with the rotor assembly 300 of embodiment one, and difference is:
1. the structure of rotor pack 320 and size are also different, and these rotor pack 320 surfaces have 24 winding slots 321 to be uniformly distributed in its circumferencial direction of 360 °;
2. the structure of commutator 340 is also different, has 72 commutator segments 341 on it;
3. each 3 element of winding 330-1 in each winding slot 321 of the said rotor pack 320 of present embodiment; 330-2; 330-3 adopts the mode of wave winding to arrange, and also adopts right lateral winding mode to be connected electrically in successively respectively on each adjacent commutator segment 341 of said commutator 340 correspondences; 3 element of winding 330-1,330-2, the concrete separately coil turn of 330-3 is also different; Certainly also have same rule with embodiment one, promptly against the rotation direction C of said rotor assembly 300, these 3 element of winding 330-1; 330-2, the switching-over angle of 330-3 reduces successively, these 3 element of winding 330-1; 330-2, the coil turn separately of 330-3 also reduce successively.In Fig. 7, also can find out; The rotation direction C of the direction of winding of armature winding 330 and said rotor assembly 300 is opposite, also is that the rotation direction C against said rotor assembly 300 winds the line, and earlier element of winding 330-1 is wound the line; Its coil turn is maximum; To element of winding 330-2 coiling, the coil turn of its coil ratio element of winding 330-1 is few, at last element of winding 330-3 is wound the line again; Its coil turn lacks than the coil turn of element of winding 330-2 again, and promptly the coil turn of element of winding 330-3 is minimum.
The rotor assembly 300 of present embodiment is used for DC motor, and permanent magnet 200 quantity of this DC motor have two pairs.
Embodiment three:
Referring to Fig. 1 to Fig. 5 and Fig. 8, the rotor assembly 300 of the permanent magnet direct current motor of present embodiment and embodiment one is basic identical, and difference is:
Each 3 element of winding 330-3 in each winding slot 321 of said rotor pack 320,330-2,330-1 adopt left lateral winding mode to be connected electrically in successively respectively on each adjacent commutator segment 341 of said commutator 340 correspondences.In Figure 10, can find out; The direction of winding of armature winding 330 is identical with the rotation direction C of said rotor assembly 300, is to wind the line along the rotation direction C of said rotor assembly 300, earlier element of winding 330-3 is wound the line; Its coil turn is minimum; To element of winding 330-2 coiling, the coil turn of its coil ratio element of winding 330-3 is many, at last element of winding 330-1 is wound the line again; Its coil turn coil turn than element of winding 330-2 again is many, and promptly the coil turn of element of winding 330-1 is maximum.Usually, because the termination of left lateral winding is intersected, it is more to take copper, so seldom adopt.
The utility model rotor assembly 300 is used for DC motor, and this DC motor is mainly used on the Mixmaster.
The above embodiment has only expressed the preferred implementation of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model; Therefore, all equivalents and modifications of being done with the utility model claim scope all should belong to the covering scope of the utility model claim.
Claims (5)
1. rotor assembly that is used on the DC motor; Be used to only require the DC motor of folk prescription, comprise rotating shaft (310), be fixed on rotor pack (320) in this rotating shaft (310), embed the armature winding (330) in each winding slot (321) of said rotor pack (320) and be fixed on the commutator (340) in the said rotating shaft (310) to rotation; It is characterized in that:
Armature winding (330) in each winding slot (321) of said rotor pack (320) include N the element of winding (330-1,330-2 ..., 330-N); This N element of winding (330-1,330-2 ..., 330-N) include multiturn coil; 6 >=N >=2 wherein, and be integer, be positioned at the same winding slot of said rotor pack (320) (321) with N the element of winding (330-1,330-2 on one side;, 330-N) be connected electrically in successively respectively on each corresponding adjacent commutator segment (341) of said commutator (340), and against the rotation direction of said rotor assembly (300), this N the element of winding (330-1; 330-2 ..., switching-over angle 330-N) reduces successively, this N the element of winding (330-1; 330-2 ..., coil turn separately 330-N) also reduces successively.
2. the rotor assembly that is used on the DC motor according to claim 1 is characterized in that:
A said N element of winding (330-1,330-2 ..., 330-N) ratio that reduces successively of coil turn is 5%～70% separately, and the mode of round off makes coil turn round.
3. the rotor assembly that is used on the DC motor according to claim 2 is characterized in that:
A said N element of winding (330-1,330-2 ..., 330-N) ratio that reduces successively of coil turn is 20%～40% separately, and the mode of round off makes coil turn round.
4. according to each described rotor assembly that is used on the DC motor of claim 1 to 3, it is characterized in that:
Overall diameter (the D of said rotor pack (320)
2) be 23.5～25.0 millimeters; Said rotor pack (320) surface has 12 winding slots (321) to be uniformly distributed in its circumferencial direction of 360 °; Width of rebate (the t of each winding slot (321)
1) be 1.2～2.2 millimeters, the width (t of tooth portion
2) be 1.2～2.0 millimeters, yoke width (t
3) be 2.5～5.0 millimeters.
5. according to each described rotor assembly that is used on the DC motor of claim 1 to 3, it is characterized in that:
Armature winding (330) in the N=3, each winding slot (321) of promptly said rotor pack (320) includes 3 elements of winding (330-1,330-2,330-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217052 CN202616898U (en) | 2012-05-15 | 2012-05-15 | A DC-motor-used rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217052 CN202616898U (en) | 2012-05-15 | 2012-05-15 | A DC-motor-used rotor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202616898U true CN202616898U (en) | 2012-12-19 |
Family
ID=47350568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220217052 Expired - Fee Related CN202616898U (en) | 2012-05-15 | 2012-05-15 | A DC-motor-used rotor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202616898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337431A (en) * | 2014-08-14 | 2016-02-17 | 海安联科汽车零部件有限公司 | Novel motor coil rotor |
-
2012
- 2012-05-15 CN CN 201220217052 patent/CN202616898U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337431A (en) * | 2014-08-14 | 2016-02-17 | 海安联科汽车零部件有限公司 | Novel motor coil rotor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20210515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |