CN203850996U - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN203850996U CN203850996U CN201420265088.5U CN201420265088U CN203850996U CN 203850996 U CN203850996 U CN 203850996U CN 201420265088 U CN201420265088 U CN 201420265088U CN 203850996 U CN203850996 U CN 203850996U
- Authority
- CN
- China
- Prior art keywords
- utmost point
- prominent
- motor
- prominent utmost
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A motor capable of decreasing noises generated in rotor acceleration or deceleration is provided. In the motor (1), five pairs of S poles and N poles which are distributed at intervals with the same angle are formed on a magnet (6); in a stator core (8), three salient poles (80) are formed at intervals with the same angle; one of the three salient poles (80) is a first salient pole (81) wound with a first coil (76); one of three salient poles (80) is a second salient pole (82) wound with a second coil (77); the radial dimensions of the first salient pole (81) and the second salient pole (82) in the three salient poles (80) are larger than the radial dimensions of the other salient poles (80); the radial dimension of a winding portion of the first coil, which is corresponding to the first salient pole (81) and the radial dimension of a winding portion of the second coil, which is corresponding to the second salient pole (82), are larger than the radial dimensions of the other salient poles (80); and a plurality of magnetic plates are stacked with one another so as to from the stator core (8).
Description
Technical field
The prominent motor that is wound with coil on extremely of the utility model relates to a kind of stator core in the side face setting along magnet multiple prominent in extremely two.
Background technology
At automobile, with in the display unit such as taximeter and clock, some employings are provided with the structure (with reference to No. 2013-57567th, Japanese Laid-Open Patent Publication) of pointer at the output shaft of motor.About the motor using in described display unit, the multiple prominent utmost point of a kind of side face along magnet configuration stator core had once been proposed, and in the prominent structure that is wound with coil on extremely of multiple prominent in extremely two (with reference to No. 4125371st, Japanese patent gazette).In the motor of recording for No. 4125371 in Japanese patent gazette, at three pairs or five pairs S utmost points of outer peripheral face configuration and the N utmost point of magnet, the number of the prominent utmost point is made as to 8, and departs from 90 ° two in angle position and be wound with coil on dashing forward extremely.
The motor using in the display unit of recording for No. 2013-57567 about Japanese Laid-Open Patent Publication etc., require not only to obtain the volume producing when enough magnetic torques can also be reduced in rotor acceleration or deceleration, but the motor that Japanese patent gazette is recorded for No. 4125371 cannot fully meet described requirement.
Utility model content
In view of above problem, problem of the present utility model is to provide a kind of motor of the volume producing can be reduced in rotor acceleration or deceleration time.
In order to address the above problem, the feature of the related motor of the utility model is that it has: rotor, its have side face along circumferentially alternately equal angles compartment of terrain be provided with the magnet of the S utmost point and the N utmost point, stator, it has stator core, the first coil and the second coil, circumferentially be disposed at described stator core with described side face across opposed multiple prominent utmost points edge, gap, described the first coil is wound on described multiple prominent first prominent utmost point in extremely, described the second coil winding described multiple prominent in extremely along the second prominent utmost point circumferentially separating with the described first prominent utmost point, in described magnet, be formed with a pair of, two pairs, four pairs, five pairs or eight pairs of described S utmost points and the described N utmost point, in described stator core, equal angles compartment of terrain is formed with three described prominent utmost points, the angle position of the described first prominent utmost point and the described second prominent utmost point is along circumferentially departing from 120 °.
In the related motor of the utility model, that magnet equal angles compartment of terrain is formed with is a pair of, two pairs, four pairs, five pairs or the eight pairs of S utmost points and the N utmost point, and in stator core, equal angles compartment of terrain is formed with three prominent utmost points.Therefore, the rotation of rotor can obtain enough magnetic torques.And, about the motor of described structure,, to find, than form three pairs or the five pairs of S utmost points and the N utmost point in magnet, in stator core, to be formed with the motor of eight prominent utmost points with respect to the variation of electric angle by checking starting torque, the variation of starting torque is less.And, radially be applied to the electromagnetic force of rotor by checking, find, than be formed with three pairs or the five pairs of S utmost points and the N utmost point at magnet, to be formed with the motor of eight prominent utmost points at stator core, the electromagnetic force that the related motor of the utility model is radially applied to rotor is less.Therefore, because the vibration of rotor is less, the volume producing therefore can be reduced in rotor acceleration or deceleration time, thus can realize low noise.
In the utility model, for example, preferably in described magnet, be formed with five pairs of described S utmost points and the described N utmost point.
In the utility model, preferred described stator core is cut off between the described first prominent utmost point and the described second prominent utmost point.According to described structure, be difficult for interfering due to the magnetic flux from the first prominent utmost point and from the magnetic flux of the second prominent utmost point, therefore can suppress the reduction of torque.
In the utility model, preferred described stator core forms by stacked multiple magnetic sheets.According to described structure, though prominent when extremely more, because magnetic sheet in the time magnetic sheet stamping-out being become to the shape of stator core is thinner, therefore can be efficiently and stamping-out magnetic sheet accurately.
In the utility model, preferably described multiple prominent extremely in, the radial dimension of the described first prominent utmost point and the described second prominent utmost point is than the radial ruler modest ability of other prominent utmost points, and described the first coil is dashed forward the radial dimension of winding part of the utmost point than the radial ruler modest ability of described other prominent utmost points with respect to the radial dimension of the winding part of the described first prominent utmost point and described the second coil with respect to described second.According to described structure, can fully guarantee the winding number of coil.
In the utility model, be preferably provided with the gear reduction that the rotation deceleration of described rotor is transmitted.According to described structure, need be at the outer setting gear reduction of motor.
In the related motor of the utility model, that magnet equal angles compartment of terrain is formed with is a pair of, two pairs, four pairs, five pairs or the eight pairs of S utmost points and the N utmost point, the medium angle intervals of stator core be formed with three prominent utmost points.Therefore, the rotation of rotor can obtain enough magnetic torques.And, in the motor of described structure,, to find and in magnet, be formed with three pairs or the five pairs of S utmost points and the N utmost point with respect to the variation of electric angle by checking starting torque, and comparing at the motor that stator core is formed with eight prominent utmost points, the variation of starting torque is less.And, radially be applied to the electromagnetic force of rotor by checking, find than be formed with three pairs or the five pairs of S utmost points and the N utmost point at magnet, and be formed with the motor of eight prominent utmost points at stator core, the electromagnetic force that the related motor of the utility model is radially applied to rotor is less.Therefore,, because the vibration of rotor is less, therefore can reduce the volume that rotor produces in the time of acceleration or deceleration, thereby can realize low noise.
Brief description of the drawings
Fig. 1 (a)～Fig. 1 (c) is the key diagram that has used motor of the present utility model.
Fig. 2 (a)～Fig. 2 (c) is the use of trying to achieve by simulation the has been shown chart of result of characteristic of motor of the present utility model.
Fig. 3 (a), Fig. 3 (b) are the key diagrams of the motor related with respect to comparative example of the present utility model.
Fig. 4 (a)～Fig. 4 (c) is the chart that the result of the characteristic of the related motor of the comparative example of the present utility model 1 shown in the Fig. 3 (a) trying to achieve by simulation is shown.
Fig. 5 (a)～Fig. 5 (c) is the chart that the result of the characteristic of the related motor of the comparative example of the present utility model 2 shown in the Fig. 3 (b) trying to achieve by simulation is shown.
Embodiment
Below, with reference to accompanying drawing to having used motor of the present utility model to describe.
(explanation of motor)
Fig. 1 (a)～Fig. 1 (c) is the key diagram that has used motor of the present utility model, and Fig. 1 (a) is the vertical view of motor, and Fig. 1 (b) is the end view of motor, and Fig. 1 (c) is the vertical view of stator etc.
As shown in Fig. 1 (a), Fig. 1 (b), the motor 1 of present embodiment has housing 3, is supported the rotor 5 for rotating and be configured in the stator 7 of the surrounding of rotor 5 by housing 3.In the present embodiment, bolster 51 is fixed on housing 3, and rotor 5 support shaft 51 supportings are for rotating.Therefore, rotor 5 is supported as rotating by housing 3 by bolster 51.And motor 1 has the reduction gear 9 that the rotation deceleration of rotor 5 is transmitted, described reduction gear 9 is also identical with rotor 5 and stator 7 to be supported by housing 3.In addition, the rotation of rotor 5 is delivered to output shaft 90 by reduction gear 9.
Rotor 5 have support shaft 51 supporting for the pinion 53 that can rotate, with pinion 53 integrated and outer peripheral face 60 (side face) along circumferentially alternately equal angles compartment of terrain be provided with the magnet 6 of the S utmost point and the N utmost point.In addition, the magnet 6 of present embodiment is cylindric.In the present embodiment, magnet 6 is integrated by insert-molding with pinion 53.Therefore, magnet 6 and pinion 53 combine by resinous plectane portion 50.In the present embodiment, magnet 6 is ferrite system.
Stator 7 comprises having with the outer peripheral face 60 (side face) of magnet 6 across the stator core 8 of the opposed multiple prominent utmost points 80 in gap, be wound on the first coil 76 of the prominent utmost point 81 of first in multiple prominent utmost points 80 and be wound on the second coil 77 of the prominent utmost point 82 of second in multiple prominent utmost points 80.In addition, in more detail, the first coil 76 is wound in the first prominent utmost point 81, the second coils 77 across insulating part 71 and is wound in the second prominent utmost point 82 across insulating part 72.Maintain the terminal 710 of two power supply use that the first coil 76 is powered in the end of insulating part 71, maintain the terminal 720 of two power supply use that the second coil 77 is powered in the end of insulating part 72.The coiling that is wound with the first coil 76 at terminal 710,720 starts and the end of finishing and the coiling of the second coil 77 starts and the end of the end of reeling of reeling.
Reduction gear 9 has second gear 92 in the first gear 91 and large footpath, described the first gear 91 has the large diameter gear 91a engaging with pinion 53, second gear 92 in described large footpath engages with the small-diameter gear 91b of the first gear 91, and output shaft 90 is fixed on the second gear 92.
In the motor 1 so forming, the driving pulse of each phase is provided by 710,720 pairs of the first coils 76 of terminal and the second coil 77, rotor 5 is rotated, and by reduction gear 9, the rotation of rotor 5 is delivered to output shaft 90.And while using motor 1 to form pointer display unit, pointer (not shown) is fixed on output shaft 90.In described display unit, by offer the driving pulse of the first coil 76 and the second coil 77 via terminal 710,720, switch the angle position of pointer.Now, provide the driving pulse that positive rotation is used that pointer is rotated clockwise to behind target location to terminal 710,720, provide to terminal 710,720 driving pulse that stops use, can make pointer stop at target location.And, under this state, if the driving pulse of providing reverse rotation to use to terminal 710,720 can make pointer be rotated counterclockwise another target location.
(structure of magnet 6 and stator core 8)
As shown in Fig. 1 (c), in the motor 1 of present embodiment, magnet 6 is provided with the S utmost point and the N utmost point at outer peripheral face 60 along circumferentially replacing equal angles compartment of terrain.In the present embodiment, in magnet 6, be formed with five pairs of S utmost points and the N utmost point.Therefore, due to magnet 6 medium angle intervals be formed with the S utmost point and the N utmost point 10 utmost points altogether, therefore depart from 36 ° along the circumferentially adjacent S utmost point and the angle position of the N utmost point.
The part that disposes magnet 6 of stator core 8 becomes peristome 84, is formed with the multiple prominent utmost point 80 outstanding towards the outer peripheral face 60 of magnet 6 at the inner peripheral of described peristome 84 along circumferential equal angles compartment of terrain.The end of radially inner side and the outer peripheral face 60 of magnet 6 of the prominent utmost point 80 are opposed across gap, and the gap size between the end of radially inner side and the outer peripheral face 60 of magnet 6 of the prominent utmost point 80 all equates in multiple prominent utmost points 80.In the present embodiment, the number of the prominent utmost point 80 is three, mutually departs from 120 ° along the angle position of 80 of the circumferentially adjacent prominent utmost points.That is to say, the angle position of the first prominent utmost point 81 and the second prominent utmost point 82 is along circumferentially departing from 120 °.In addition, the so-called angle position along 80 of the circumferentially adjacent prominent utmost points is mutually departed from 120 ° and is referred to along angle position in the heart in the circumferentially adjacent prominent utmost point 80 circumferential and mutually depart from 120 °.
In the stator core 8 so forming, two in three prominent utmost points 80 use as the first prominent utmost point 81 and the second prominent utmost point 82.That is, the insulating part 71 that a prominent utmost point 80 in three prominent utmost points 80 becomes the tubular that is wound with the first coil 76 is embedded in the first prominent utmost point 81 in its outside, and the insulating part 72 that another prominent utmost point 80 becomes the tubular that is wound with the second coil 77 is embedded in the second prominent utmost point 82 in its outside.Therefore, in three prominent utmost points 80, there is the prominent utmost point 83 of the coil of not reeling.
In the present embodiment, the radial dimension of the prominent utmost point 81 of first in multiple prominent utmost points 80 and the second prominent utmost point 82 is than the radial ruler modest ability of other prominent utmost points 80 (the prominent utmost point 83).Therefore, the first coil 76 with respect to the radial dimension of the winding part of the first prominent utmost point 81 and the second coil 77 with respect to the radial dimension of the winding part of the second prominent utmost point 82 than the radial ruler modest ability of other prominent utmost points 83.At this, other prominent utmost points 80 (the prominent utmost point 83) refer to the prominent utmost point of the coil of not reeling.And in the present embodiment, the number of the prominent utmost point 80 is three.In addition, the radial dimension of the first prominent utmost point 81 and the second prominent utmost point 82 is equal, and the first coil 76 equates with respect to the radial dimension of the winding part of the second prominent utmost point 82 with the second coil 77 with respect to the radial dimension of the winding part of the first prominent utmost point 81.And, because the radial dimension of the first prominent utmost point 81 and the second prominent utmost point 82 is than the radial ruler modest ability of other prominent utmost points 83, therefore the dash forward end of radial outside of the utmost point 82, the end of the radial outside of the first prominent utmost point 81 and second is positioned at the position separating from magnet 6 to radial outside than the end of the radial outside of other prominent utmost points 83.
At this, stator core 8 has the connecting portion 85 of the frame shape of the end of the radial outside that connects all prominent utmost point 80 including the first prominent utmost point 81 and the second prominent utmost point 82, and the width dimensions of described connecting portion 85 equates along complete cycle.Therefore, connecting portion 85 becomes and the concentric arc sections 86 of magnet 6 beyond the angular range that is formed with the first prominent utmost point 81 and the second prominent utmost point 82.On the other hand, the angular range that is formed with the first prominent utmost point 81 of connecting portion 85 becomes to the outstanding rectangular portion 87 of the rectangular frame shape of radial outside, and the angular range that is formed with the second prominent utmost point 82 becomes to the outstanding rectangular portion 88 of the rectangular frame shape of radial outside.In the present embodiment, because the prominent utmost point 80 is three, therefore between the first prominent utmost point 81 and the second prominent utmost point 82, there is not the prominent utmost point 80.In other words, stator core 8 is cut off between the first prominent utmost point and the second prominent utmost point.Therefore,, in connecting portion 85, the part clamping at the utmost point 82 of being dashed forward by the first prominent utmost point 81 and second is cut off, and has formed cut-off parts 89.
In the present embodiment, stator core 8 is tabular, by stacked multiple be punched and form for the magnetic sheet of above-mentioned shape.In other words, stator core 8 forms by stacked multiple magnetic sheets.
(evaluation result of motor 1)
Fig. 2 (a)～Fig. 2 (c) is the use of trying to achieve by simulation the has been shown chart of result of characteristic of motor 1 of the present utility model, Fig. 2 (a) is the chart that the relation between electric angle and the starting torque (detent torque) of motor 1 is shown, Fig. 2 (b) is the chart that the relation between electric angle and the magnetic torque of motor 1 is shown, Fig. 2 (c) illustrates that expression is radially applied to the chart of the lee sajous graphics of the electromagnetic force of rotor 5.In addition, in Fig. 2 (c), taking with the orthogonal direction of the pivot axis of rotor 5 as X-direction, taking the power that is applied to rotor 5 along described X-direction as transverse axis.And, in Fig. 2 (c), taking with the pivot axis of rotor 5 and the orthogonal direction of X-direction as Y direction, taking the power that is applied to rotor 5 along described Y direction as the longitudinal axis.And at the motor 1 for evaluating, stator core 8 becomes above-mentioned shape stacked three to form by the non-oriented electromagnetic steel sheet having stamping-out that is 0.5mm by thickness.The internal diameter of magnet 6 is 6mm, and external diameter is 8mm, and axial dimension is 3mm.Winding wire coiling 2200 circles that the first coil 76 and the second coil 77 are 0.055mm by diameter respectively form, and the resistance value of one phase is 220 Ω.Driving voltage is 5V.
Fig. 3 (a), Fig. 3 (b) are the key diagrams of the motor 1 related with respect to comparative example of the present utility model, in this motor 1, obtain characteristic by simulation.In the related motor of the first comparative example shown in Fig. 3 (a), form three pairs of S utmost points and the N utmost point at magnet 6, in stator core 8, equal angles compartment of terrain is formed with eight prominent utmost points 80.And the first prominent utmost point 81 that is wound with the first coil 76 departs from 90 ° with the angle position of the second prominent utmost point 82 that is wound with the second coil 77.
In the related motor of the second comparative example shown in Fig. 3 (b), be formed with five pairs of S utmost points and the N utmost point at magnet 6, and in stator core 8, be formed with eight prominent utmost points 80.And the first prominent utmost point 81 that is wound with the first coil 76 departs from 90 ° with the angle position of the second prominent utmost point 82 that is wound with the second coil 77.At this, the prominent utmost point 80 unequal interval ground form, but when the circumferential center of a prominent utmost point in the first prominent utmost point 81 and the second prominent utmost point 82 is opposed with the boundary member between the S utmost point and the N utmost point, the circumferential center of the circumferential center of another prominent utmost point and the circumferential center of the S utmost point or the N utmost point is opposed, does not therefore hinder the generation of magnetic torque.
Fig. 4 (a)～Fig. 4 (c) is the chart that the result of the characteristic of the related motor of the first comparative example of the present utility model shown in the Fig. 3 (a) trying to achieve by simulation is shown, Fig. 4 (a) is the chart that the relation between electric angle and the starting torque of motor is shown, Fig. 4 (b) is the chart that the relation between electric angle and the driving torque of motor is shown, Fig. 4 (c) illustrates that expression is radially applied to the chart of the lee sajous graphics of the electromagnetic force of rotor 5.Fig. 5 (a)～Fig. 5 (c) is the chart that the result of the characteristic of the related motor of the second comparative example of the present utility model shown in the Fig. 3 (b) trying to achieve by simulation is shown, Fig. 5 (a) is the chart that the relation between electric angle and the starting torque of motor is shown, Fig. 5 (b) is the chart that the relation between electric angle and the driving torque of motor is shown, Fig. 5 (c) illustrates that expression is radially applied to the chart of the lee sajous graphics of the electromagnetic force of rotor 5.
In addition, Fig. 4 (a) and Fig. 5 (a) are the data corresponding with Fig. 2 (a), Fig. 4 (b) and Fig. 5 (b) are the data corresponding with Fig. 2 (b), and Fig. 4 (c) and Fig. 5 (c) are the data corresponding with Fig. 2 (c).
At this, the related motor of the second comparative example shown in the motor that the first comparative example shown in Fig. 3 (a) is related and Fig. 3 (b) with use motor 1 of the present utility model identical aspect the basic structures such as the size of magnet 6 and the size of stator core 8, only have the number of poles of magnet 6 not identical with the number of the prominent utmost point 80.
Result shown in result shown in result shown in comparison diagram 2 (a) and Fig. 4 (a) and Fig. 5 (a) is known, than the related motor of the first comparative example and the related motor of the second comparative example, in use motor 1 of the present utility model, the variable quantity of starting torque is less.Therefore, the external force that is applied to rotor 5 is less, so can say that vibration is also less.
Next, result shown in result shown in result shown in comparison diagram 2 (b) and Fig. 4 (b) and Fig. 5 (b) is known, than the related motor of the first comparative example and the related motor of the second comparative example, in use motor 1 of the present utility model, magnetic torque is less, even so, also can obtain the required enough magnetic torques of rotation of rotor 5.
Result shown in result shown in result shown in comparison diagram 2 (c) and Fig. 4 (c) and Fig. 5 (c) is known, than the related motor of the first comparative example and the related motor of the second comparative example, in use motor 1 of the present utility model, the power that is radially applied to rotor 5 is less.Therefore,, in use motor 1 of the present utility model, than the related motor of the first comparative example and the related motor of the second comparative example, the external force that is radially applied to rotor 5 is less, therefore can say that vibration is less.
(the main effect of present embodiment)
As described above, in the motor 1 of present embodiment, magnet 6 equal angles compartment of terrains are formed with five pairs of S utmost points and the N utmost point, and in stator core 8, equal angles compartment of terrain is formed with three prominent utmost points 80.Therefore, can obtain the required magnetic torque of rotation of motor 1.And, about the motor 1 of described structure, by checking starting torque with respect to the variation of electric angle etc., find as illustrated with reference to Fig. 2 (a), Fig. 4 (a) and Fig. 5 (a), than be formed with three pairs or the five pairs of S utmost points and the N utmost point at magnet 6, the related motor of comparative example 1,2 that is formed with eight prominent utmost points 80 in stator core 8, the variation of starting torque is less.And, radially be applied to the electromagnetic force of rotor 5 by checking, find as illustrated with reference to Fig. 2 (c), Fig. 4 (c) and Fig. 5 (c), than be formed with three pairs or the five pairs of S utmost points and the N utmost point at magnet 6, the related motor of comparative example 1,2 that is formed with eight prominent utmost points 80 in stator core 8, the electromagnetic force that is radially applied to rotor 5 is less.Therefore,, because the vibration of rotor 5 is less, therefore can reduce the volume that rotor 5 produces in the time of acceleration or deceleration, thereby can realize low noise.
And stator core 8 is cut off between the first prominent utmost point 81 and the second prominent utmost point 82.Therefore, be difficult for interfering from the magnetic flux of the first prominent utmost point 81 and from the magnetic flux of the second prominent utmost point 82, therefore can suppress torque and decline.
And stacked multiple magnetic sheets of stator core 8 form.Therefore, as shown in the embodiment, even in the time that the prominent utmost point 80 is more, because magnetic sheet in the time magnetic sheet stamping-out being become to the shape of stator core 8 is thinner, therefore also stamping-out magnetic sheet accurately.
And, the radial dimension of the prominent utmost point 81 of first in multiple prominent utmost points 80 and the second prominent utmost point 82 is than the radial ruler modest ability of other prominent utmost points 80, and the first coil 76 is larger than the radial dimension of other prominent utmost points 80 with respect to the radial dimension of the winding part of the second prominent utmost point 82 with respect to radial dimension and second coil 77 of the winding part of the first prominent utmost point 81.Therefore, can obtain reliably the required magnetic torque of rotation of motor 1.
And, transmit the gear reduction 9 of the rotation of rotor 5 owing to being provided with deceleration at motor 1, therefore need be at the outer setting gear reduction 9 of motor 1.Therefore, only, by output shaft 90, pointer is installed in the motor 1 of present embodiment, just can form the key component of display unit, thereby can realize the miniaturization of display unit.
(other execution modes)
In the above-described embodiment, stator core 8 medium angle intervals be formed with three prominent utmost points 80, magnet 6 medium angle intervals be formed with five pairs of S utmost points and the N utmost point, but also can be magnet 6 medium angle intervals be formed with structure a pair of, two pairs, four pairs or the eight pairs of S utmost points and the N utmost point.In other words, using in motor 1 of the present utility model, in magnet 6, be formed with a pair of, two pairs, four pairs, five pairs or the eight pairs of S utmost points and the N utmost point.Even in described structure, due to the variation of starting torque with to be radially applied to the electromagnetic force of rotor 5 less, therefore the vibration of rotor 5 is less.
In the above-described embodiment, for rotor 5 is positioned at the structure of the inner side of stator 7, but the motor that is arranged in the outside of stator 7 at rotor 5 also can be applied the utility model.Now, the prominent utmost point 80 is the opposed structure of inner peripheral surface (side face) outstanding from stator core 8 to radial outside and magnet 6.
Claims (6)
1. a motor, is characterized in that,
Described motor has:
Rotor, it has the magnet that is provided with the S utmost point and the N utmost point at side face along circumferential alternately equal angles compartment of terrain; And
Stator, it has stator core, the first coil and the second coil, circumferentially be disposed at described stator core with described side face across opposed multiple prominent utmost points edge, gap, described the first coil is wound on described multiple prominent first prominent utmost point in extremely, described the second coil winding described multiple prominent in extremely along the second prominent utmost point circumferentially separating with the described first prominent utmost point
In described magnet, be formed with a pair of, two pairs, four pairs, five pairs or eight pairs of described S utmost points and the described N utmost point,
In described stator core, equal angles compartment of terrain is formed with three described prominent utmost points,
The angle position of the described first prominent utmost point and the described second prominent utmost point is along circumferentially departing from 120 °.
2. motor according to claim 1, is characterized in that,
In described magnet, be formed with five pairs of described S utmost points and the described N utmost point.
3. motor according to claim 1, is characterized in that,
Described stator core is cut off between the described first prominent utmost point and the described second prominent utmost point.
4. according to the motor described in any one in claims 1 to 3, it is characterized in that,
Described stator core forms by stacked multiple magnetic sheets.
5. according to the motor described in any one in claims 1 to 3, it is characterized in that,
Described multiple prominent extremely in, the radial dimension of the described first prominent utmost point and the described second prominent utmost point is than the radial ruler modest ability of other prominent utmost points,
Described the first coil with respect to the radial dimension of the winding part of the described first prominent utmost point and described the second coil with respect to the radial dimension of the winding part of the described second prominent utmost point than the radial ruler modest ability of described other prominent utmost points.
6. according to the motor described in any one in claims 1 to 3, it is characterized in that,
Described motor is provided with the gear reduction that the rotation deceleration of described rotor is transmitted.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013123288A JP2014241685A (en) | 2013-06-12 | 2013-06-12 | Motor |
| JP2013-123288 | 2013-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850996U true CN203850996U (en) | 2014-09-24 |
Family
ID=51563966
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410217467.1A Pending CN104242583A (en) | 2013-06-12 | 2014-05-22 | Motor |
| CN201420265088.5U Expired - Fee Related CN203850996U (en) | 2013-06-12 | 2014-05-22 | Motor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410217467.1A Pending CN104242583A (en) | 2013-06-12 | 2014-05-22 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2014241685A (en) |
| CN (2) | CN104242583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242583A (en) * | 2013-06-12 | 2014-12-24 | 日本电产三协株式会社 | Motor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017022892A (en) * | 2015-07-13 | 2017-01-26 | 日本電産サンキョー株式会社 | Motor, motor device, and pointer type display device |
| JP2017020918A (en) * | 2015-07-13 | 2017-01-26 | 日本電産サンキョー株式会社 | Motor, motor device and indicator pointer type display device |
| JP6608268B2 (en) * | 2015-12-21 | 2019-11-20 | 日本電産サンキョー株式会社 | Motor device and pointer type display device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2754953B1 (en) * | 1996-10-21 | 1999-02-26 | Moving Magnet Tech | POLYPHASE MOTOR, PARTICULARLY FOR DRIVING A DISPLAY HAND |
| JP2002354777A (en) * | 2001-03-23 | 2002-12-06 | Tdk Corp | Stepping motor |
| WO2005033792A1 (en) * | 2003-10-07 | 2005-04-14 | Ct Electronics Co., Ltd. | A shutter apparatus of camera |
| CN200959565Y (en) * | 2006-07-24 | 2007-10-10 | 伟盈驱动技术有限公司 | Step-by-step motor |
| JP2008043071A (en) * | 2006-08-07 | 2008-02-21 | Denso Corp | Stepping motor and manufacturing method therefor |
| WO2011017839A1 (en) * | 2009-08-12 | 2011-02-17 | 深圳航天科技创新研究院 | Broad-pole type square-wave three-phase brushless permanent magnet direct current motor and assembling method thereof |
| FR2982715B1 (en) * | 2011-11-14 | 2013-11-15 | Moving Magnet Tech | INDICATOR MODULE FOR A FLUID MOTION DASHBOARD |
| JP2014241685A (en) * | 2013-06-12 | 2014-12-25 | 日本電産サンキョー株式会社 | Motor |
-
2013
- 2013-06-12 JP JP2013123288A patent/JP2014241685A/en active Pending
-
2014
- 2014-05-22 CN CN201410217467.1A patent/CN104242583A/en active Pending
- 2014-05-22 CN CN201420265088.5U patent/CN203850996U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242583A (en) * | 2013-06-12 | 2014-12-24 | 日本电产三协株式会社 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014241685A (en) | 2014-12-25 |
| CN104242583A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203850995U (en) | Motor | |
| US9966807B2 (en) | Brushless motor | |
| US10644552B2 (en) | Brushless motor | |
| CN203850996U (en) | Motor | |
| CN103457375B (en) | Rotary type permanent-magnet motor | |
| EP2744078A2 (en) | Motor | |
| WO2018128043A1 (en) | Rotating electrical machine and automotive electrical auxiliary system using same | |
| JP2009213283A (en) | Brushless motor | |
| CN101888162B (en) | Compact motor | |
| JP2015050863A (en) | Stator core of rotary electric machine | |
| CN103580335A (en) | Electric motor | |
| CN104638799A (en) | Motor | |
| CN203859659U (en) | Motor | |
| EP2922188A1 (en) | Vehicle drive device | |
| JP2008228457A (en) | Brushless motor and electric power steering device equipped with the same | |
| US20140049129A1 (en) | Rotor for interior permanent magnet synchronous motor and interior permanent magnet synchronous motor including the same | |
| CN204408160U (en) | Motor, motor apparatus and dial indicator display device | |
| JP6797385B2 (en) | DC motor | |
| US9915554B2 (en) | Terminal block structure and stator for resolver | |
| JP2006288064A (en) | Stepping motor | |
| JP2006288063A (en) | Stepping motor | |
| JP2016220430A (en) | Brushless motor |
Legal Events
| 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: 20140924 Termination date: 20170522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |