CN202798197U - Coreless motor, vibrating motor and mobile terminal device - Google Patents
Coreless motor, vibrating motor and mobile terminal device Download PDFInfo
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- CN202798197U CN202798197U CN 201220497355 CN201220497355U CN202798197U CN 202798197 U CN202798197 U CN 202798197U CN 201220497355 CN201220497355 CN 201220497355 CN 201220497355 U CN201220497355 U CN 201220497355U CN 202798197 U CN202798197 U CN 202798197U
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Abstract
The utility model provides a coreless motor, a vibrating motor and a mobile terminal device which can obtain high driving force without any large driving electric power. The coreless motor comprises a rotating shaft, a coil and a first magnet, wherein the coil rotates around the rotating shaft and serves as a rotor; the first magnet is arranged on the inner circumferential side of the coil and serves as a stator; a second magnet is arranged on the outer circumferential side of the coil, and the magnetic poles of the first magnet and the second magnet which are oppositely arranged are different. A casing is arranged outside the second magnet and formed by a soft magnet body, the second magnet is fixed in the casing, the shape of the casing in the short dimension direction is different from that in the long dimension direction, and the second magnet is configured at the end of the casing in the long dimension direction.
Description
Technical field
The utility model is about core free motor, vibrating motor and mobile terminal apparatus.
Background technology
In the existing core free motor, be provided with outside magnetite and inboard magnetite on the rotor, inboard magnetite is across the inboard that is located at interval at as the coreless coil of stator, and outside magnetite is across the outside that is located at interval at described coreless coil.
Patent documentation 1 (TOHKEMY 2002-027781) has just been put down in writing aforementioned core free motor.
But in the technology of patent documentation 1, because outside magnetite and inboard magnetite all are fixed on the rotor, so weight increases, rotor needs larger actuating force.Therefore, also just need larger driving electric power.
The utility model content
So the purpose of this utility model provides and need not core free motor, vibrating motor and the mobile terminal apparatus that larger driving electric power just can obtain higher actuating force.
For realizing that described purpose core free motor comprises: gyroaxis; Along the rotation of described gyroaxis and as the coil of rotor; And be arranged on interior all sides of described coil and as the 1st magnetite of stator, wherein, the outer circumferential side of described coil is provided with the 2nd magnetite as stator, in opposite directions and the 1st right magnetite is different with the magnetic pole of the 2nd magnetite; Arranged outside at the 2nd magnetite has shell, and this shell is made of soft magnetic bodies, and described the 2nd magnetite is fixed on described shell; It is characterized in that shell is the shape with short dimensional directions and long dimensional directions, described the 2nd magnetite is configured in the end of the long dimensional directions of shell.
Described core free motor, its further characteristics are that the end of the long dimensional directions of described shell is respectively circular-arc.
Described core free motor, its further characteristics are that the end of the short dimensional directions of described shell is divided into flat shape.
Described core free motor, its further characteristics are, the N utmost point of the 2nd magnetite along the S utmost point of the highest field of circumferential magnetic density and the 1st magnetite along the highest field of circumferential magnetic density in opposite directions and right, the S utmost point of the 2nd magnetite along the N utmost point of the highest field of circumferential magnetic density and the 1st magnetite along the highest field of circumferential magnetic density in opposite directions and right, described the 2nd magnetite only is configured in the end of the long dimensional directions of shell, and the N utmost point and the S utmost point of described the 2nd magnetite dispose respectively at the both ends of the long dimensional directions of shell.
Described core free motor, its further characteristics be, the N utmost point of described the 2nd magnetite and S be circular arc very, and it spreads all over the whole medial surface of end of the long dimensional directions of described shell.
Described core free motor, its further characteristics are that described shell is quadrangle form.
The shorter dimensional directions face of casing is configured on substrate etc., and it is less that the height on the substrate can keep, and than the 2nd magnetite being configured on the end of the longer dimensional directions of casing, then need not larger driving electric power and just can obtain higher actuating force.For realizing the vibrating motor of described purpose, be characterized in that comprise: arbitrary described core free motor wherein, is provided with eccentric hammer on the described gyroaxis of described core free motor.
This vibrating motor possesses the effect of aforementioned core free motor simultaneously.
For realizing the mobile terminal apparatus of described purpose, be characterized in being equipped with described vibrating motor.
This vibrating motor possesses the effect of aforementioned vibrating motor simultaneously.
Description of drawings
Fig. 1 is the sectional view of the core free motor 1 in the utility model the 1st example.
Fig. 2 is the sectional view along the A-A cut-out of Fig. 1.
Fig. 3 is the sectional view of the coreless motor 1 in the utility model the 2nd example.
Fig. 4 is the sectional view of the variation of the utility model the 1st example.
Fig. 5 is the sectional view of another variation of the utility model the 1st example.
Fig. 6 is the sectional view of the variation of the utility model the 2nd example.
Fig. 7 is the sectional view of the utility model the 3rd example.
(symbol description)
1 core free motor
2 gyroaxises
3 the 1st magnetites
The 3-1 N utmost point
The 3-2 S utmost point
4 coils
5 shells
6 the 2nd magnetites
The 6-1 N utmost point
The 6-2 S utmost point
7 eccentric hammer
8 magnetite framves
9 vibrating motors
10,11 bights
13 pole center sections
15 planar portions
Embodiment
(the 1st example)
Describe with regard to the 1st example of the present utility model referring to Fig. 1, Fig. 2.Mobile terminal apparatus in this example (not shown) is portable phone (not shown), is fixed wtih vibrating motor 9 on the substrate of portable phone (not shown).As shown in Figure 2, vibrating motor 9 is by the gyroaxis 2 at core free motor 1 eccentric hammer 7 to be set to form.
At first, the formation with regard to coreless motor 1 describes.As shown in Figure 1, this core free motor 1 comprises: shell 5; Gyroaxis 2; Be fixed on the coil 4 on the gyroaxis 2; Be fixed on the 1st magnetite 3 on the shell 5; And the 2nd magnetite 6 that is positioned at coil 4 outer circumferential sides.
The 1st magnetite 3 is cylindric, and the magnetite frame 8 by as shown in Figure 2 is fixed on the shell 5.As shown in Figure 1, the 1st magnetite 3 is along circumferentially being geomagnetic into N utmost point 3-1 and S utmost point 3-2.Bight 11,11 on the diagonal angle of the pole center section 13,13 in high field and shell 5 is in opposite directions and right as each magnetic density of the N utmost point and the S utmost point.The 1st magnetite 3 is the stators that are fixed on the shell 5.
As shown in Figure 1, the cross section of the 2nd magnetite 6 is slightly triangular in shape, it be arranged on the pole center section 13 of the 1st magnetite 3 in opposite directions and right bight 11,11.The S utmost point 3-2 of the N utmost point 6-1 of the 2nd magnetite 6 and the 1st magnetic pole 3 and is fixed on the shell 5 in opposite directions and right.The N utmost point 3-1 of the S utmost point 6-2 of the 2nd magnetic pole 6 and the 1st magnetic pole 3 and is fixed on the shell 5 in opposite directions and right.The 2nd magnetite 6 is fixed on the shell 5 by fixing meanss such as binders.The 2nd magnetite 6 is the stators that are fixed on the shell 5.
Below, with regard to the effect of the 1st example, effect describes.When having electric current to pass through in the coil 4, because the magnetic flux between the 1st magnetite 3 and the 2nd magnetite 6 just produces the electromagnetic force that makes coil 4 rotations, comprise that the rotor of coil 4 just begins rotation.Because gyroaxis 2 is to be fixed on the coil 4, gyroaxis 2 is just rotation also, so the eccentric hammer 7 that is arranged on the gyroaxis 2 just produces vibration.
The 1st magnetite 3 and the 2nd magnetite 6 clip coil 4, in opposite directions and the magnetic pole of the 1st right magnetite 3 and the 2nd magnetite 6 is different mutually.Therefore, magnetic flux G as shown in Figure 1 is such, and is more along the composition of radial direction, and magnetic density is also large, so that the electromagnetic force of coil 4 rotation is just large.Also have, coil 4 as rotor than more accessing lighter rotor to magnetite as rotor.Therefore, rotor is lighter, even also larger by identical current driving capability, the coreless motor 1 in the 1st example need not larger driving electric power just can obtain higher actuating force.And, the highest zone of the circumferential magnetic density in the edge of each magnetic pole of the zone that the circumferential magnetic density in the edge of each magnetic pole of the N utmost point 6-1 of the 2nd magnetite 6 and S utmost point 6-2 is the highest and the S utmost point 3-2 of the 1st magnetite 3 and N utmost point 3-1 in opposite directions and right, so the 1st magnetite 3 and the 2nd magnetite 6 interact, and can all obtain higher magnetic density.So, even the actuating force that same drive current obtains is larger, just can obtain same actuating force with less drive current.
Also have, circumferentially can there be the discontinuous configuration in interval on the 2nd magnetite 6 edges, thus just passable with the amount of the 2nd less magnetite 6, like this can Cost reduction.
Also have, the outer circumferential side of the 2nd magnetite 6 is arranging the shell 5 that consists of with soft magnetic bodies, misses to shell 5 so can prevent the magnetic flux of the 2nd magnetite 6.Can suppress the demagnetization of the 2nd magnetite 6, thereby make actuating force larger.
Also have, the 2nd magnetite 6 is fixed on the shell 5, can save unnecessary fixed part.
Also have, the outer peripheral face of shell 5 is arranging planar portions 15.This planar portions 15 is fixed on the faces such as substrate (not shown).Therefore, stability is better, and when being fixed on motor on the substrate, previously used carriage just need not to have used.Need not to use the parts of pressing from above, so the height when can reduce to be fixed on the substrate to coreless motor 1.
Also have, shell has the bight 11 that bight 11, the 2 magnetites 6 are arranged on shell 5.Therefore, can effectively utilize the space in bight 11.And as shown in Figure 1, the upside of the coil 4 of short transverse and downside do not have the 2nd magnetite 6, so can reduce the height of coreless motor 1.
(the 2nd example)
Below describe with regard to the 2nd example of the present utility model.Pay same symbol with the same part in above-mentioned the 1st example, thereby their description is omitted.Identical in fact on function between the described same part, but can be variant between shape or the technique effect.
As shown in Figure 3, in the 2nd example, the 2nd magnetite 6 edges that are arranged on the outer circumferential side of coil 4 are continuous cylindric magnetites circumferentially.Also have, the 2nd magnetite 6 is arranged on the outside of coil 4, has simultaneously the effect of shell 5 concurrently.
In Fig. 3, be cylindric as the 1st magnetite 3 of stator, along circumferentially being geomagnetic into N utmost point 3-1 and S utmost point 3-2.The 2nd magnetite 6 as stator is cylindric, the N utmost point 3-1 of its S utmost point 6-2 and the 1st magnetite 3 in opposite directions and right, and the S utmost point 3-2 of its N utmost point 6-1 and the 1st magnetic pole 3 is in opposite directions and right.The 2nd magnetite has the effect of shell 5 concurrently, therefore need not to arrange in addition shell 5, thereby can Cost reduction.
In addition, the 2nd magnetite 6 that is arranged on the outer circumferential side of coil 4 along the circumferential direction is continuous magnetite cylindraceous, so can make the 2nd magnetite by the method such as one-body molded.
(the 3rd example)
Below describe with regard to the 3rd example of the present utility model.Pay same symbol with the same part in above-mentioned the 1st example, thereby their description is omitted.Identical in fact on function between the described same part, but can be variant between shape or the technique effect.
In Fig. 7, shell 5 is the shapes with short dimensional directions (as shown in the figure vertically) and long dimensional directions (as shown in the figure horizontal).The 2nd magnetite 6 is configured in the end of the long dimensional directions of shell 5, the S utmost point 6-2 of the 2nd magnetite 6 and N utmost point 6-1 are in the circumferential arranged spaced of the outer circumferential side of coil 4, as shown in the figure, S utmost point 6-2 is configured in the left end of long dimensional directions, and N utmost point 6-1 is configured in the right-hand member of long dimensional directions.In this example, the two ends of the long dimensional directions of shell 5 are circular shapes, and correspondingly, the S utmost point 6-2 of the 2nd magnetite 6 and N utmost point 6-1 also are circular shape, configuration the 2nd magnetite 6 on the medial surface of this circular shape.On the central portion of the medial surface at the two ends of short dimensional directions without configuration the 2nd magnetite 6.The 2nd magnetite be arranged on the pole center section 13 of the 1st magnetite 3 in opposite directions and the end of right long dimensional directions.The S utmost point 3-2 of the N utmost point 6-1 of the 2nd magnetite 6 and the 1st magnetic pole 3 and is fixed on the shell 5 in opposite directions and right.The N utmost point 3-1 of the S utmost point 6-2 of the 2nd magnetic pole 6 and the 1st magnetic pole 3 and is fixed on the shell 5 in opposite directions and right.
Therefore, the size of the core free motor 1 of short dimensional directions is owing to the gauge of not affix the 2nd magnetite 6, so can still keep small size.For this reason, when the upper core free motor 1 of configuration, the size of the short transverse that begins from substrate can keep less.In addition, owing to the 2nd magnetite 6 can be disposed at housing on the whole, just can obtain higher actuating force so need not large driving electric power in the long dimensional directions of core free motor 1.
In this variation, the shape of the face of long dimensional directions is not limited to circular shape, for example can be plane (cross sectional shape as core free motor 1 integral body is rectangle) also it doesn't matter.In addition, the face of short dimensional directions also needs not be the plane, and for example, the cross sectional shape of core free motor 1 integral body is that elliptical shape is also passable.
In addition, the 2nd magnetite 6 is not configured in the central portion of short dimensional directions face, even if be configured in this part, covers the outer circumferential side integral body of whole coil 4 passable yet.
The utility model is not limited to above-mentioned example, can do all distortion in the scope that does not break away from the utility model main idea.For example, above-mentioned the 1st example also deformability is Fig. 4, and perhaps Fig. 5 is such.
In Fig. 4, tetragonal shell 5 has in opposite directions and two right limit sections, the pole center section 13 of the 1st magnetite 3 be arranged on described two limit sections in opposite directions and right.Corresponding with the N utmost point 3-1 of the 1st magnetite 3, the S utmost point 6-2 of the 2nd magnetite 6 is arranged on 2 bights of shell 5.Corresponding with the S utmost point 3-2 of the 1st magnetite 3, the N utmost point 6-1 of the 2nd magnetite 6 is arranged on 2 bights of shell 5.With respect to the 1st example, can increase the magnetic flux that crosses coil 4.
In Fig. 5, to pole center section 13 be configured so that 2 N utmost point 3-1 of the 1st magnetite 3 and S utmost point 3-2 alternately with each bight in opposite directions and right.In the bight of shell 5, the 2nd magnetite 6 and the 1st magnetite 3 in each circumferential pole center section 13 corresponding being configured.With respect to Fig. 4, the 2nd magnetite 6 is configured in corresponding with the central part 13 of each circumferential magnetic pole of the 1st magnetite 3, so, can improve magnetic density, can improve actuating force.
Also have, though in example take dimetric shell 5 as example, be not limited to this, also can be applicable to have the shell 5 at even number angle.
In addition, also can be deformed into the 2nd example as shown in Figure 6.The 2nd magnetite 6 as shown in Figure 6 also has the effect as shell 5 concurrently, still, as shown in Figure 6, except the 2nd magnetite, also can be provided with in addition at the outer circumferential side of the 2nd magnetite 6 shell 5 that is made of magnetic.Also have, when shell 5 was set, its shape was cylindric, also square shape, or other shapes.
Also have, also can be arranged to the 1st magnetite in the 2nd example as shown in Figure 5, that is: two of the 1st magnetite 3 N utmost point 3-1 and two S utmost point 3-2 dispose alternately.In addition, though the magnetite 6 in the 2nd example is cylindric, be not limited to this, also tetragonal, or other shapes.
In addition, although the mobile terminal apparatus in the utility model is take portable phone as example, be not limited to this, the utility model also can be applicable to the terminal installations such as personal computer or palmtop PC (PDA).
Claims (8)
1. core free motor comprises:
Gyroaxis;
Along the rotation of described gyroaxis and as the coil of rotor; And
Be arranged on interior all sides of described coil and as the 1st magnetite of stator,
Wherein,
The outer circumferential side of described coil is provided with the 2nd magnetite as stator,
In opposite directions and the 1st right magnetite is different with the magnetic pole of the 2nd magnetite;
Arranged outside at the 2nd magnetite has shell, and this shell is made of soft magnetic bodies, and described the 2nd magnetite is fixed on described shell;
It is characterized in that shell is the shape with short dimensional directions and long dimensional directions, described the 2nd magnetite is configured in the end of the long dimensional directions of shell.
2. core free motor as claimed in claim 1 is characterized in that,
The end of the long dimensional directions of described shell is respectively circular-arc.
3. core free motor as claimed in claim 1 is characterized in that,
The end of the short dimensional directions of described shell is divided into flat shape.
4. core free motor as claimed in claim 1 is characterized in that,
The N utmost point of the 2nd magnetite along the S utmost point of the highest field of circumferential magnetic density and the 1st magnetite along the highest field of circumferential magnetic density in opposite directions and right, the S utmost point of the 2nd magnetite along the N utmost point of the highest field of circumferential magnetic density and the 1st magnetite along the highest field of circumferential magnetic density in opposite directions and right, described the 2nd magnetite only is configured in the end of the long dimensional directions of shell, and the N utmost point and the S utmost point of described the 2nd magnetite dispose respectively at the both ends of the long dimensional directions of shell.
5. core free motor as claimed in claim 4 is characterized in that,
The N utmost point of described the 2nd magnetite and S be circular arc very, and it spreads all over the whole medial surface of end of the long dimensional directions of described shell.
6. core free motor as claimed in claim 1 is characterized in that,
Described shell is quadrangle form.
7. a vibrating motor is characterized in that, comprising:
Such as each described core free motor of claim 1 to 6,
Wherein, be provided with eccentric hammer on the described gyroaxis of described core free motor.
8. mobile terminal apparatus is characterized in that being equipped with:
Vibrating motor as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497355 CN202798197U (en) | 2012-09-26 | 2012-09-26 | Coreless motor, vibrating motor and mobile terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497355 CN202798197U (en) | 2012-09-26 | 2012-09-26 | Coreless motor, vibrating motor and mobile terminal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798197U true CN202798197U (en) | 2013-03-13 |
Family
ID=47825371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220497355 Expired - Lifetime CN202798197U (en) | 2012-09-26 | 2012-09-26 | Coreless motor, vibrating motor and mobile terminal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798197U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683574A (en) * | 2012-09-26 | 2014-03-26 | 思考电机（上海）有限公司 | Coreless motor, vibrating motor and portable terminal device |
| CN107546880A (en) * | 2016-06-27 | 2018-01-05 | 李扬远 | A kind of noncorrosive pump Non-iron core motor |
| CN107546881A (en) * | 2016-06-27 | 2018-01-05 | 李扬远 | A kind of Non-iron core motor used for electric vehicle |
| CN107591981A (en) * | 2016-07-08 | 2018-01-16 | 李扬远 | A kind of miniature Non-iron core motor of commercial mini rotor wing unmanned aerial vehicle |
-
2012
- 2012-09-26 CN CN 201220497355 patent/CN202798197U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683574A (en) * | 2012-09-26 | 2014-03-26 | 思考电机（上海）有限公司 | Coreless motor, vibrating motor and portable terminal device |
| CN107546880A (en) * | 2016-06-27 | 2018-01-05 | 李扬远 | A kind of noncorrosive pump Non-iron core motor |
| CN107546881A (en) * | 2016-06-27 | 2018-01-05 | 李扬远 | A kind of Non-iron core motor used for electric vehicle |
| CN107591981A (en) * | 2016-07-08 | 2018-01-16 | 李扬远 | A kind of miniature Non-iron core motor of commercial mini rotor wing unmanned aerial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINSIKAO ELECTRIC MOTOR CO., LTD. Free format text: FORMER OWNER: SIKAO ELECTRIC MOTOR (SHANGHAI) CO., LTD. Effective date: 20150716 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150716 Address after: 314112 Jiashan City, Jiaxing province Huimin County Street, No., Jia Jia Road, building 3, 1 floor, 58 Patentee after: NEW SHICOH MOTOR Co.,Ltd. Address before: 201613 No. 38 Teng Teng Road, Songjiang District export processing zone, Shanghai, China Patentee before: SHICOH MOTOR (SHANGHAI) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |