CN1297056C - Vibratory motor - Google Patents
Vibratory motor Download PDFInfo
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- CN1297056C CN1297056C CNB2004100589493A CN200410058949A CN1297056C CN 1297056 C CN1297056 C CN 1297056C CN B2004100589493 A CNB2004100589493 A CN B2004100589493A CN 200410058949 A CN200410058949 A CN 200410058949A CN 1297056 C CN1297056 C CN 1297056C
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- 230000005484 gravity Effects 0.000 abstract 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 24
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- 229920005989 resin Polymers 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Motor Or Generator Frames (AREA)
Abstract
To obtain a thin vibrating motor. A rotor (3) having an eccentric center of gravity is provided in a motor frame (2), and an air core coil (4) and a drive magnet (5) are arranged oppositely in these motor frame (2) and the rotor (3). A thrust bearing (6) for sustaining the gap between the air core coil (4) and the drive magnet (5) is provided between the rotor (3) and the motor frame (2) of the vibrating motor for generating a vibration by rotary driving the rotor (3) having an eccentric center of gravity through unbalance in the weight of the rotor (3).
Description
Technical field
The present invention relates to be applied to the vibrating motor of electronic equipments such as mobile phone.
Background technology
For example in the mobile phone,, use the vibrating motor that vibration takes place by rotation at electronic equipment as the device of the situation of indivedual reception exhalation signals being reported usefulness.As one of vibrating motor, known have a brushless flat vibrating motor (for example with reference to patent documentation 1).
This flat vibrating motor as shown in Figure 9, has: base component 101; On base component 101 by the set coil 103 of circuit substrate 102; On base component 101 by the rotatably mounted axle 105 of bearing arrangement 104; On axle 105 with coil 103 relatively fixing and with the discoid rotor 106 of axle 105 rotations; Be arranged on the magnet 107 on the rotor 106 and opposite face coil 103; Be located on the rotor 106, make the weight of rotor 106 make unbalanced counterweight 108.This rotor 106 when being driven in rotation with axle 105, utilizes the imbalance of the weight of rotor 106 just to vibrate.
[patent documentation 1] Japan Patent spy opens 2003-88805 communique (Fig. 1)
, in recent years, consider to change hastily to slim and small-sized equipment for electronic equipment especially mobile phone, the relevant vibrating motor that is used for mobile phone also requires miniaturization.
For described flat vibrating motor, also seek slimming, as the key element of slimming, be with the reduced thickness of rotor, and to reduce the gap (air gap) of rotor.
Occasion with the reduced thickness of rotor only makes the reduced thickness of rotor can not realize slimming, and, also need be, reduce the effective length of axle and journal bearing along with the thickness of rotor.Like this, in the occasion that realizes the miniaturization of flat vibrating motor by the reduced thickness that makes rotor, the effective length that will fully guarantee journal bearing is difficult, and the radially loosening face when becoming rotation easily that causes because of the gap between axle and journal bearing runaways.
In addition, when bearing hour, because of lay particular stress on the heart cause the slip load of bearing big because bearing wear makes radially loosening increase, so along with the face that the makes rotor service time increase that runaways.
In addition, when the thinner thickness of rotor, can not obtain the flatness and the rigidity of rotor, the external force during sometimes because of counterweight or rotation etc. makes rotor generation deflection, and this situation can become the obstacle that air gap reduces.
Therefore, can not realize the slimming that it is above.
Summary of the invention
The present invention makes in order to address the above problem, and its purpose is, the vibrating motor that can realize slimming is provided.
In order to reach described purpose, vibrating motor of the present invention is, to lay particular stress on heart rotor rotatably is located on the motor frame, make air core coil and drive magnet relatively dispose mutually, make and lay particular stress on heart rotor rotation driving and utilize the imbalance of the weight that lays particular stress on heart rotor to vibrate at these motor frames on the heart rotor with laying particular stress on, at described motor frame and lay particular stress on and be provided with the cod that to keep the gap between described air core coil and the drive magnet between the heart rotor, lay particular stress on the peripheral edge margin with opposite face described motor frame heart rotor and supported by described cod.
Adopt the present invention, even making the reduced thickness that lays particular stress on heart rotor also will support this radial axle of laying particular stress on heart rotor revolvably makes little, owing to utilize the cod that is located at motor frame and lays particular stress between the heart rotor to support to laying particular stress on heart rotor, and can keep the gap between air core coil and the drive magnet, so can not cause that the face of laying particular stress on heart rotor runaways.
In addition, at motor frame and lay particular stress between the heart rotor, by being provided with the cod of keeping the gap between air core coil and the drive magnet, even reduce the gap between air core coil and the drive magnet, air core coil can not contact with drive magnet yet.
Therefore, can make the reduced thickness that lays particular stress on heart rotor or reduce to lay particular stress on the gap (air gap) of heart rotor, just can realize slimming.
Preferably, the described heart rotor of laying particular stress on forms discoid, and lay particular stress on the circumference of opposite face of described motor frame of heart rotor and the middle section beyond near the peripheral edge margin the circumference is provided with described drive magnet at this, lay particular stress on the peripheral edge margin with opposing face described opposite face opposition side heart rotor at this and be provided with eccentrically mounted weight, and this peripheral edge margin that lays particular stress on the described opposite face of heart rotor is being supported by described cod.
Thus, owing to utilize cod that the axial force of eccentrically mounted weight is supported and the axial force of eccentrically mounted weight acts on the gap between air core coil and the drive magnet hardly, so can keep the gap between air core coil and the drive magnet reliably.
Preferably, the described peripheral edge margin that lays particular stress on heart rotor, stepped to the curved one-tenth of described motor frame lateral bending, be equipped with described eccentrically mounted weight on the opposing face of this stair-stepping peripheral edge margin bending to.
Like this, stepped by the peripheral edge margin that will lay particular stress on heart rotor to the curved one-tenth of motor frame lateral bending, can make to be arranged on this peripheral edge margin that lays particular stress on heart rotor and the journal bearing between the motor frame reduces, just can realize slimming more.
Preferably, described lay particular stress on heart rotor, its radially foreign side's not eccentric region of not being provided with described eccentrically mounted weight be provided with notch part.
Like this,, just can make the weight that lays particular stress on heart rotor uneven more, can vibrate reliably by notch part is set.
Preferably, described drive magnet forms circular, this circular drive magnet, its radially foreign side be not provided with part or all external diameter of the part of described eccentrically mounted weight, form littler than the external diameter of other parts.
Thus, can make the weight that lays particular stress on heart rotor uneven more, can vibrate more reliably.
Preferably, between described motor frame and described cod, be provided with low friction member.
Thus, just make the cod action easily, increase the revolving force of laying particular stress on heart rotor, can vibrate more reliably.
In addition,, just can regulate, can keep the gap between air core coil and the drive magnet more reliably motor frame that is provided with cod and the height of laying particular stress on heart rotor by low friction member is set.
Preferably, heart rotor-side is laid particular stress on to described in the position relative with the described peripheral edge margin that lays particular stress on heart rotor of described motor frame, is equipped with described cod at the position of this inclination.
Thus and since motor frame with lay particular stress on cod set between the heart rotor also the conduct bearing radially (journal bearing) of laying particular stress on heart rotor work, so can reduce rotatably mounted load of laying particular stress on the journal bearing of heart rotor.In addition, this structure is effective especially for laying particular stress on the big situation of the heart.
Preferably, the described heart rotor of laying particular stress on rotatably is supported on the axle that is fixed on the described motor frame.
As mentioned above, can make the reduced thickness that lays particular stress on heart rotor, maybe can reduce to lay particular stress on the gap (air gap) of heart rotor, can obtain to realize the vibrating motor of slimming.
Description of drawings
Fig. 1 is the cutaway view of an example of expression the 1st vibrating motor of the present invention.
Fig. 2 is the vertical view that expression will cover and lay particular stress on state behind the heart rotor removal in the 1st vibrating motor of the present invention.
Fig. 3 is the cutaway view of the 2nd vibrating motor of another example of expression the present invention.
Fig. 4 is the cutaway view of the 3rd vibrating motor of another example of expression the present invention.
Fig. 5 is the cutaway view of the 4th vibrating motor of another example of expression the present invention.
Fig. 6 is an expression vertical view of laying particular stress on an example of heart rotor of the present invention.
Fig. 7 is expression another routine vertical view of laying particular stress on heart rotor of the present invention.
Fig. 8 is an expression vertical view of laying particular stress on the another example of heart rotor of the present invention.
Fig. 9 is a cutaway view of representing vibrating motor in the past.
Embodiment
Below, with reference to the accompanying drawings example of the present invention is elaborated.
Fig. 1 and Fig. 2 are the figure of expression the 1st vibrating motor of the present invention.This vibrating motor has as depicted in figs. 1 and 2: motor frame 2; Rotatably be located at and lay particular stress on heart rotor 3 on the motor frame 2; Be located at air core coil 4 on the motor frame 2; Relatively be located at the drive magnet 5 of laying particular stress on the heart rotor 3 with air core coil 4; Be located at motor frame 2 and lay particular stress between the heart rotor 3, keep the cod 6 in the gap between air core coil 4 and the drive magnet 5.
Motor frame 2, utilizing insulating material to form by what bottom 11 and wall portion 12 constituted has a round-ended cylinder body shape.
Central portion in motor frame 2 bottoms 11 is being fixed coaxial axle 7.Axle 7 length, its size form its leading section and are positioned at peristome from motor frame 2 to motor frame 2.
On the circumference and the middle section beyond near the peripheral edge margin the circumference of bottom 11, be provided with the circuit substrate 13 of the circle of printing distributing board and flexible base plate etc.
On the part of the circumference of bottom 11 middle sections, be provided with terminal hole 14, feeder terminal portion 15 is electrically connected with circuit substrate 13 by this terminal hole 14.
On circuit substrate 13, on the axis target relative, setting 2 air core coils (flatwise coil) 4 with axle 7.That is, on generally flat on the circuit substrate 13, on axis target, setting 2 flatwise coils 4.
In addition, on circuit substrate 13, be equipped with: the motor-driven of IC (integrated circuit component) etc. element 16; Detect the Hall element (hall effect devices) 17 of magnetic; And other electronic component 18.
On the peripheral end of axle 7 leading section sides, be provided with the rotatable heart rotor 3 of laying particular stress on by journal bearing 8.Promptly become following structure: lay particular stress on heart rotor 3 and form discoid, be provided with through hole at this center of laying particular stress on heart rotor 3, in this through hole, insert axle 7 coaxially, and in this periphery of 7 and lay particular stress on that to be provided with journal bearing 8 between the inwall of through hole of heart rotor 3 such.
As journal bearing 8, for example use sintered metal bearing, kollag bearing, resin bearing, with sliding bearing of mixed resin bearing of metal powder etc. etc.
Lay particular stress on heart rotor 3 as Fig. 1 and shown in Figure 6, form discoid, and be located at the surface of the circuit substrate 13 on motor frame 2 bottoms 11 and the surface and face (opposite face) almost parallel of laying particular stress on a side of heart rotor 3 of air core coil 4, and can be rotated to support on the axle 7 relatively.
The external diameter of laying particular stress on heart rotor 3 does not limit especially, but preferably becomes more than the size relative with the surface energy of air core coil.
Middle section beyond near the peripheral edge margin the opposite face circumference of laying particular stress on heart rotor 3 and the circumference (can with the surperficial relative opposed area of air core coil 4) is provided with drive magnet 5.
As Fig. 1 and shown in Figure 6, with the opposing face of the opposite face opposition side of laying particular stress on heart rotor 3 on, the eccentrically mounted weight 21 of vibration usefulness takes place when being provided with rotation in order to make the weight that lays particular stress on heart rotor 3 make imbalance.
Eccentrically mounted weight 21 can be any member as long as can vibrate, and for example can be arranged on the part on the peripheral edge margin of the opposing face of laying particular stress on heart rotor 3.Eccentrically mounted weight 21, specifically form for example about 180 ° with interior circular-arc cross section flat.
In addition, lay particular stress on heart rotor 3, its radially foreign side be not provided with the not eccentric region of eccentrically mounted weight 21, also can be provided with the weight that will lay particular stress on heart rotor 3 as shown in Figure 7 and make unbalanced notch part 22.The shape of notch part 22 is not particularly limited, and can form any shape, as shown in the figure, also can form circular-arc.In addition, notch part 22 can be 1, also can form more than 2.In addition, for the variation of notch part 22, also can be provided with many holes (holes of circle, triangle, rectangle, polygonal etc.).
In addition, as shown in Figure 8, with drive magnet 23, its radially foreign side's external diameter of not being provided with the part (or all) of the part of eccentrically mounted weight 21 form forr a short time than the external diameter of other parts, also can make the imbalance that helps to lay particular stress on heart rotor 3 weight.
The shape of these notch parts 22 and drive magnet 23, the weight that will lay particular stress on heart rotor 3 though also can not use eccentrically mounted weight 21 separately makes imbalance, preferably with eccentrically mounted weight 21 and usefulness.
Lay particular stress on heart rotor 3,, preferably be provided with peripheral edge margin and bend to the side-prominent stepped formed end difference 25 in motor frame 2 bottoms 11 though that peripheral edge margin also can form is same or roughly same plane with middle section.This ladder of end difference 25 of peripheral edge margin of laying particular stress on heart rotor 3 is poor, preferably becomes the above size of thickness of eccentrically mounted weight 21.
Lay particular stress between the peripheral edge margin of bottom 11 of the peripheral edge margin of opposite face of heart rotor 3 and motor frame 2 at this, be provided with the cod 6 that can keep gap between air core coil 4 and the drive magnet 5.
Do not limit especially as cod 6, can use axial ball bearing, axioversion ball bearing, axial cylindrical roller bearing, axial needle roller bearing, axial tapered roller bearing, axial automatic self aligning roller bearing etc.By using such cod 6, can with simple reliable in structure keep gap between air core coil 4 and the drive magnet 5.
As cod, the situation of using axial ball bearing 6 is specifically described, cod 6 for example as depicted in figs. 1 and 2, constitutes by many steel balls 31 with by circular (washer-shaped) guard ring 33 in the rolling hole 32 that this steel ball 31 rolls that allows at many intervals of leaving regulation.This cod 6 is arranged between the peripheral edge margin of bottom 11 of the peripheral edge margin of the opposite face of laying particular stress on heart rotor 3 and motor frame 2, each steel ball 31 contacts with the bottom 11 of laying particular stress on heart rotor 3 and motor frame 2 respectively, becomes the state of keeping the gap between air core coil 4 and the drive magnet 5.
The diameter of steel ball 31 is the members in gap between decision air core coil 4 and the drive magnet 5, and the diameter by any selection steel ball 31 can obtain required gap.
Be provided with cover 9 on the peristome of motor frame 2, rubbish etc. just do not enter in the motor frame 2.In addition, guarantee to lay particular stress on the gap of heart rotor 3 and cover 9, even apply external force and also can avoid contacting of air core coil 4 and drive magnet 5 and lay particular stress on heart rotor 3 and cover 9 contact to covering 9.
When air core coil 4 energising that makes with element 16 by feeder terminal portion 15 and motor-driven in this motor frame 2, utilize the magnetic force with drive magnet 5 to drive to laying particular stress on heart rotor 3 application of forces.Motor-driven will be controlled to the energising of air core coil 4 to make with element 16 and lay particular stress on heart rotor 3 and rotate continuously.
Thus, lay particular stress on heart rotor 3 and driven rotatably continuously, utilize the imbalance of the weight that lays particular stress on heart rotor 3 to vibrate.
At this moment, further uneven by being provided with notch part 22, can making the weight that lays particular stress on heart rotor 3 in the not eccentric region that lays particular stress on heart rotor 3 as shown in Figure 7, can vibrate reliably.
In addition, as shown in Figure 8, (or all) external diameter forms more lessly than the external diameter of other parts, can make the weight that lays particular stress on heart rotor 3 further uneven, can vibrate more reliably by making radially foreign side at drive magnet 23 not be provided with the part of described eccentrically mounted weight part.
Lay particular stress on heart rotor 3 as shown in Figure 1, owing to rotatably being supported on the axle 7 by journal bearing 8 and utilizing 6 pairs of opposite faces of laying particular stress on heart rotor 3 of cod to support, so the gap between air core coil 4 and the drive magnet 5 can be held in the value of regulation.In addition, when heart rotor 3 was laid particular stress in the rotation driving, cod 6 was along with the rotation of laying particular stress on heart rotor 3 is rotated.
Therefore, can will lay particular stress on the thickness of heart rotor 3 make thin or reduce the gap (air gap) of laying particular stress on heart rotor 3, can realize slimming.
Promptly, because even the thickness that will lay particular stress on heart rotor 3 is done thin to a certain extent and is made less (effective length is shortened) along with the thickness of laying particular stress on heart rotor 3 can will support this journal bearing of laying particular stress on heart rotor 38 rotatably, also the opposite face of laying particular stress on heart rotor 3 can be bearing on the cod 6, so the gap between air core coil 4 and the drive magnet 5 can be kept the value of regulation, can not produce the face of laying particular stress on heart rotor 3 and runaway.Promptly, when making the reduced thickness that lays particular stress on heart rotor 3 and journal bearing 8 is reduced, air core coil 4 can be by the magnetic force drawing with drive magnet 5, and,, rock so be easy to generate radially owing to make weight become imbalance because of laying particular stress on the 3 generation vibrations of heart rotor, by cod 6 is set, owing to the axial force that lays particular stress on heart rotor 3 is supported by cod 6,, can not produce the face of laying particular stress on heart rotor 3 and runaway so the gap between air core coil 4 and the drive magnet 5 can be kept the value of regulation.
In addition, be bearing on the cod 6 owing to will lay particular stress on the opposite face of heart rotor 3, so even the gap between minimizing air core coil 4 and the drive magnet 5, air core coil 4 can not contact with drive magnet 5 yet.Promptly, when reduced in gap between air core coil 4 and drive magnet 5, for example when the plane precision of the opposite face of laying particular stress on heart rotor 3 when being coarse, air core coil 4 might contact with drive magnet 5, by cod 6 is set, air core coil 4 can not contact with drive magnet 5.Thus, also can use fully, also just can reduce cost even the plane precision of opposite face is more coarse to a certain degree.
Therefore, vibrating motor 1 of the present invention, can make lay particular stress on heart rotor 3 thick 7 the degree attenuates, maybe can reduce the gap (air gap) of laying particular stress on heart rotor 3, can realize slimming.
In addition, when on the peripheral edge margin that eccentrically mounted weight 21 is located at the opposing face of laying particular stress on heart rotor 3, owing to utilize the axial force of 6 pairs of eccentrically mounted weights 21 of cod to support, so the axial force of eccentrically mounted weight 21 acts between air core coil 4 and the drive magnet 5 hardly.Therefore, can keep gap between air core coil 4 and the drive magnet 5 reliably.
At this moment, lay particular stress on the peripheral edge margin of heart rotor 3, when forming end difference 25, the cod 6 that is located between this peripheral edge margin that lays particular stress on heart rotor 3 and the motor frame 2 is reduced, steel ball 31 is reduced when bending to stepped to motor frame 2 sides.Like this, owing to can make the diameter of steel ball 31 less, so can make the reduced thickness of the peripheral edge margin of motor frame 2.In addition, along with the diameter that makes steel ball 31 reduces, because the width (width radially) of guard ring 33 is reduced, so the diameter of motor frame 2 is reduced.
Fig. 3 is the figure of expression the 2nd vibrating motor of the present invention.The 2nd vibrating motor is in removing the cover this point with the different of described the 1st vibrating motor.The part identical with described the 1st vibrating motor put on identical symbol and omitted its explanation.
As shown in Figure 3, the 2nd vibrating motor 41 makes the part (or all) of the open end of motor frame 42 be provided with to bending to the inside and deviate to prevent portion 43, just can prevent to lay particular stress on heart rotor 3 and deviate from from motor frame 42.At this moment, when on the peripheral edge margin of the opposing face of laying particular stress on heart rotor 3, not being provided with eccentrically mounted weight 21, as shown in the figure, be provided with eccentrically mounted weight 44 at the middle section of opposing face.
In addition, the leading section that is preferably formed as to the leading section of the open end of motor frame 42 and axle 7 is positioned at conplane state.
Even such structure also can play and aforementioned same action effect.
In addition, the 2nd vibrating motor 41 covers the segment thickness slimming owing to do not cover so can make because of saving.
In addition, the 2nd vibrating motor 41 is set, so rubbish etc. are difficult to enter in the motor frame 42 from the peristome of motor frame 42 the mounting surface butt of the device that the peristome by making motor frame 42 and diagram are carried like that.
Fig. 4 is the figure of expression the 3rd vibrating motor of the present invention.The 3rd vibrating motor and described the 1st vibrating motor difference are to be provided with low friction member this point between motor frame and cod 6.To with the identical part of described the 1st vibrating motor, put on same-sign and omit its explanation.
As shown in Figure 4, the 3rd vibrating motor 51 is that the peripheral edge margin in the bottom 53 of motor frame 52 is provided with low friction member 54.
The formation method of low friction member 54 does not limit especially, for example can use punch process etc.
Even such structure also can play and aforementioned same action effect.
In addition, by between motor frame 52 and cod 6 (on the peripheral edge margin of bottom 53) be provided with low friction member 54, just make cod 6 actions easily, increase the revolving force of laying particular stress on heart rotor 3, can vibrate more reliably.
In addition, by low friction member 54 is set, owing to can regulate, so can keep gap between air core coil 4 and the drive magnet 5 more reliably to motor frame 52 (peripheral edge margin of bottom 53) and the height of laying particular stress on heart rotor 3.
Fig. 5 is the figure of expression the 4th vibrating motor of the present invention.The 4th vibrating motor and described the 1st vibrating motor difference are that peripheral edge margin in the bottom of motor frame is to laying particular stress on heart rotor-side inclination this point.To with the identical part of described the 1st vibrating motor, put on same-sign and omit its explanation.
As shown in Figure 5, the 4th vibrating motor 61 is along with the peripheral edge margin of motor frame 62 bottoms is shifted to foreign side radially and formed gradually to laying particular stress on the rake 64 that heart rotor-side (inboard) tilts.
The angle of inclination of this rake 64 does not limit especially, for example, makes 30 ° in this example.In addition, the angle of inclination has the functional effect as journal bearing, in addition, can design at random obtain in not producing the scope that departs from for the height of axial direction.
In addition, preferably, the peripheral edge margin that lays particular stress on heart rotor 3 forms the state of or almost parallel parallel with rake 64 as shown in the figure.
Even such structure also can play and aforementioned same action effect.
In addition, form when shift to foreign side radially along with the peripheral edge margin of motor frame 62 bottoms 63 gradually to laying particular stress on rake 64 that heart rotor-side (inboard) tilts and at this rake 64 and lay particular stress on when setting cod 6 between the heart rotor 3, because this journal bearing 6 also works as the bearing radially of laying particular stress on heart rotor 3, so can reduce rotatably mounted load of laying particular stress on the bearing of heart rotor 3.
In addition, vibrating motor of the present invention is not limited to coil stationary and with drive magnet and is located at the vibrating motor of laying particular stress on the epitrochanterian brushless platypelloid type of the heart, also is applicable to drive magnet to be fixed and coil is located to lay particular stress on that the heart is epitrochanterian a brush vibrating motor.
In addition, can also be applicable to and be fixed on axle and go up, and utilize the bearing that is fixed on the motor frame to make and lay particular stress on the rotary-type vibrating motor of axle that heart rotor rotates together with the axis and drives laying particular stress on heart rotor.
In addition, vibrating motor of the present invention, represented to be provided with the example of the motor of 2 nonoverlapping single-phase type of drive of air core coil, as long as lay particular stress on heart rotor rotation driving and can make by drive magnet, the number of air core coil can be more than 1, in addition, air core coil also can be configured to overlap condition.That is, vibrating motor of the present invention is not limited to the motor of single-phase (all-wave energising) type of drive, also can be applicable to the motor of the type of drive such as all-wave energising, half-wave energising of 2 phases, 3 phases.
Claims (8)
1, a kind of vibrating motor, to lay particular stress on heart rotor rotatably is located on the motor frame, these motor frames with lay particular stress on heart rotor on make the relative configuration mutually of air core coil and drive magnet, make and lay particular stress on heart rotor rotation driving and utilize the imbalance of the weight that lays particular stress on heart rotor to vibrate, it is characterized in that, at described motor frame and lay particular stress on and be provided with the cod of keeping gap between described air core coil and the drive magnet between the heart rotor, lay particular stress on the peripheral edge margin with opposite face described motor frame heart rotor and supported by described cod.
2, vibrating motor as claimed in claim 1, it is characterized in that, the described heart rotor of laying particular stress on forms discoid, and lay particular stress on the circumference of heart rotor and opposite face described motor frame and the middle section beyond near the peripheral edge margin the circumference is provided with described drive magnet at this, be provided with eccentrically mounted weight with this opposing face peripheral edge margin that lays particular stress on the described opposite face opposition side of heart rotor.
3, vibrating motor as claimed in claim 2 is characterized in that, the described peripheral edge margin that lays particular stress on heart rotor bends to steppedly to described motor frame side, bending on the opposing face of this stair-stepping peripheral edge margin, is equipped with described eccentrically mounted weight.
4, vibrating motor as claimed in claim 3 is characterized in that, is not located at the described not eccentric region that lays particular stress on the radially foreign side of heart rotor in described eccentrically mounted weight, is provided with notch part.
5, as claim 3 or 4 described vibrating motors, it is characterized in that, described drive magnet forms circular, and described eccentrically mounted weight is not located at part or all the external diameter of part of the radially foreign side of this circular drive magnet, forms littler than the external diameter of other parts.
6, as each described vibrating motor in the claim 1～4, it is characterized in that, between described motor frame and described cod, be provided with low friction member.
As each described vibrating motor in the claim 1～4, it is characterized in that 7, heart rotor-side is laid particular stress on to described in the position relative with the described peripheral edge margin that lays particular stress on heart rotor of described motor frame, is equipped with described cod at the position of this inclination.
As each described vibrating motor in the claim 1～4, it is characterized in that 8, the described heart rotor of laying particular stress on rotatably is supported on the axle that is fixed on the described motor frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003200377A JP2005045868A (en) | 2003-07-23 | 2003-07-23 | Vibrating motor |
| JP2003200377 | 2003-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1578067A CN1578067A (en) | 2005-02-09 |
| CN1297056C true CN1297056C (en) | 2007-01-24 |
Family
ID=34260803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100589493A Expired - Fee Related CN1297056C (en) | 2003-07-23 | 2004-07-23 | Vibratory motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005045868A (en) |
| CN (1) | CN1297056C (en) |
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| JP2018529302A (en) | 2015-08-11 | 2018-10-04 | ジェネシス ロボティクス エルエルピー | Electric machine |
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| US11043885B2 (en) | 2016-07-15 | 2021-06-22 | Genesis Robotics And Motion Technologies Canada, Ulc | Rotary actuator |
| WO2018148842A1 (en) * | 2017-02-16 | 2018-08-23 | Genesis Robotics Llp | Electric machine comprising a safety ring |
| JP7109948B2 (en) * | 2018-03-19 | 2022-08-01 | セイコーインスツル株式会社 | Vibration generator and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05252713A (en) * | 1991-10-28 | 1993-09-28 | Sony Corp | Brushless motor |
| JPH0626517A (en) * | 1992-05-11 | 1994-02-01 | Sony Corp | Bearing device |
| JPH09103045A (en) * | 1995-10-04 | 1997-04-15 | Sankyo Seiki Mfg Co Ltd | Bearing device of spindle motor |
| JP2003018814A (en) * | 2001-07-02 | 2003-01-17 | Entac Kk | Compressed coreless oscillating motor |
| JP2003180064A (en) * | 2001-12-10 | 2003-06-27 | Nidec Copal Corp | Brushless motor |
-
2003
- 2003-07-23 JP JP2003200377A patent/JP2005045868A/en active Pending
-
2004
- 2004-07-23 CN CNB2004100589493A patent/CN1297056C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05252713A (en) * | 1991-10-28 | 1993-09-28 | Sony Corp | Brushless motor |
| JPH0626517A (en) * | 1992-05-11 | 1994-02-01 | Sony Corp | Bearing device |
| JPH09103045A (en) * | 1995-10-04 | 1997-04-15 | Sankyo Seiki Mfg Co Ltd | Bearing device of spindle motor |
| JP2003018814A (en) * | 2001-07-02 | 2003-01-17 | Entac Kk | Compressed coreless oscillating motor |
| JP2003180064A (en) * | 2001-12-10 | 2003-06-27 | Nidec Copal Corp | Brushless motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109314436A (en) * | 2016-04-13 | 2019-02-05 | 詹尼斯机器人移动技术加拿大公司 | Axial flux machine including the inside thrust bearing of diameter and diameter outward thrust bearing |
| CN109314436B (en) * | 2016-04-13 | 2020-10-27 | 詹尼斯机器人移动技术加拿大公司 | Axial flux electric machine comprising a radially inner thrust bearing and a radially outer thrust bearing |
| US11128188B2 (en) | 2016-04-13 | 2021-09-21 | Genesis Robotics And Motion Technologies Canada, Ulc | Electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1578067A (en) | 2005-02-09 |
| JP2005045868A (en) | 2005-02-17 |
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