CN1206240A - Centre-of-gravity motion increased flat coreless vibrating motor - Google Patents
Centre-of-gravity motion increased flat coreless vibrating motor Download PDFInfo
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- CN1206240A CN1206240A CN 98102591 CN98102591A CN1206240A CN 1206240 A CN1206240 A CN 1206240A CN 98102591 CN98102591 CN 98102591 CN 98102591 A CN98102591 A CN 98102591A CN 1206240 A CN1206240 A CN 1206240A
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Abstract
The invention discloses a centre-of-gravity motion increased flat coreless vibrating motor capable of increasing vibrating amount and achieving lightweighting by a simple structure without changing the size and increasing the thickness, an eccentric rotor configures several armature coils at a side and is molded by synthetic resin. The synthetic resin composing the eccentric rotor is a high-density synthetic project plastic whose peripheral side has a density more than 5 and whose inner side is a resin (L) having a density less than 1.8. An outer diameter is less than gyration periphery of the eccentric rotor, a projecting portion (A) made of the high-density synthetic project plastic is provided at a magnet side at periphery of the eccentric rotor, at least a part of the projecting portion is configured in a space between a periphery of the magnet and a shell.
Description
The present invention relates to particularly strengthen the flat coreless vibrating motor that center of gravity moves as the noiseless flat coreless vibrating motor of notifying from a phone call mechanism in the mobile communication equipment.
Existing flat non-iron electrocardiograph for example has the pattern that discloses for Japanese kokai publication sho 63-290140 number.In this coreless machine, on the output shaft of common rotary-type motor, eccentric disk is being set, the part of 3 armature coils of 120 ° of five equilibriums configurations is at interval being eliminated.In addition, in the existing flat non-iron electrocardiograph, in 3 armature coils is littler than other two.In USP4864276 number, disclosed this vibrating motor.
But, when being arranged on the output shaft, be not easy to accomplish thin typeization to eccentric disk.The part of 3 armature coils that wait the branch configuration eliminated or short circuit or during an armature coil miniaturization, integral body is still in the form of annular discs constant, so the center of gravity amount of movement is few, the centrifugal force that produces during rotation is little, produce frequency high feel bad vibration.
In order to overcome above-mentioned shortcoming, the applicant had once proposed a kind of motor, this motor is willing to clear 63-111868 number (application changes to the special flat 4-295503 of hope) and as shown in USP5036239 number of prototype as Japan is real, be made of the rotor that slightly is the fan biasing in the plane, 3 armature coils do not overlap each other.
That is,, constitute by eccentric rotor 9, axle 7, housing, magnet 3, brush 6 and change over switch 10 as Fig. 5, shown in Figure 6.In the eccentric rotor 9 several armature coils a, b, c are offset to a side.Axle 7 is configured in the center of this eccentric rotor 9.Housing is made of the box 1 and the supporting plate 2 that support rotatable eccentric rotor 9 by axle 7 and bearing 12a, 12b.The part that magnet 3 is positioned in this housing is on the supporting plate 2, supplies with magnetic flux to eccentric rotor 9.Brush 6 is configured in side in this magnet 3 by brushgear housing 4.Change over switch 10 is configured in magnet 3 one sides towards eccentric rotor 9, slips with the front end of brush 6.In addition, 8 is that brass is prevented and to be taken off part among the figure, if but originally have anti-avulsion measure such as annular knurl on one's body at axle, also this anti-avulsion part not then.The 11st, with the synthetic resin of eccentric rotor 9 one die castings, adopt glass fiber-reinforced polybutene terephalic acid ester usually.13a, 13b are thrust washers.
The vibrating motor of this structure because the center of gravity amount of movement of footpath direction is big, so the centrifugal force of Chan Shenging is also big when rotated, has obtained a large amount of market favorable comments.But along with nearest miniaturization trend, market is subminiature, the vibrating motor with centrifugal force of demand more.
In order to increase off-centre (center of gravity amount of movement), once considered in the scheme of removing the weights such as shot that are shaped integratedly on the synthetic resin part of armature coil.But the size after integrated is often big than desirable, is realizing that effect is undesirable aspect the miniaturization.
Recently, along with the light-weighted requirement of fuselage, not only require the motor lightweight while but also require its vibration big.
The present invention makes in view of the above-mentioned market demand, and its purpose is to provide a kind of vibrating motor, and this motor is not varying sized, does not increase thickness yet, can strengthen vibratory output and realize lightweight with simple structure.
For achieving the above object, the present invention takes following technical scheme:
A kind ofly strengthen the flat coreless vibrating motor that center of gravity moves, have: armature coil is configured in a side and uses the integrally formed eccentric rotor of synthetic resin, be configured in the axle at this eccentric rotor center, housing by the rotatable eccentric rotor of this supporting, be configured in the part of this housing and supply with the magnet of magnetic flux to eccentric rotor, be configured in the brush of above-mentioned housing part the interior side of this magnet, the change over switch that is configured on the eccentric rotor and slips with the brush front end, it is characterized in that, constituting the synthetic resin of above-mentioned eccentric rotor, is that outer circumferential side density is the high density composite engineering plastics more than 5, inboard density is the resin below 1.8.
The flat coreless vibrating motor that described increasing center of gravity moves, it is characterized in that, the external diameter of above-mentioned magnet is less than the cycle periphery of above-mentioned eccentric rotor, magnet one side in this eccentric rotor periphery, the protuberance that setting is made of the above-specified high density composite engineering plastics is configured at least a portion of this protuberance in the space between above-mentioned magnet periphery and the housing by the space.
The flat coreless vibrating motor that described increasing center of gravity moves is characterized in that, above-mentioned axle is fixed on the part of housing, and the density by the double as bearing is the high sliding resin below 1.8, and eccentric rotor is rotatably installed on this axle.
The flat coreless vibrating motor that described increasing center of gravity moves, it is characterized in that, the change over switch that is configured on the above-mentioned eccentric rotor is made of printed substrate, periphery is in the inboard of above-mentioned several armature coil peripheries, is high density composite engineering plastics more than 5 in the outside of this change over switch configuration density.
The present invention can realize like this: in the structure of above-mentioned prior art, be that high density composite engineering plastics, the inboard of density more than 5 is the synthetic resin of the resin of density below 1.8 as eccentric rotor with outer circumferential side.
Example of the present invention.
Best example of the present invention, described invention, have: several armature coils are configured in a side and use the integrally formed eccentric rotor of synthetic resin, be configured in the axle at this eccentric rotor center, housing by the rotatable eccentric rotor of this supporting, be configured in the part of this housing and supply with the magnet of magnetic flux to eccentric rotor, be configured in the brush of above-mentioned housing part the interior side of this magnet, the change over switch that is configured on the eccentric rotor and slips with the brush front end, it is characterized in that, constituting the synthetic resin of above-mentioned eccentric rotor, is that outer circumferential side is the high density composite engineering plastics of density more than 5, the inboard is the resin of density below 1.8.
Like this, the weight ground that can not increase whole rotor strengthens the center of gravity amount of movement.
Invention as described, the external diameter of above-mentioned magnet is less than the cycle periphery of eccentric rotor, in magnet one side of this eccentric rotor periphery, the protuberance that is made of the above-specified high density composite engineering plastics is set, at least a portion of this protuberance is configured in the space between magnet periphery and the housing by the space.
Like this, more can strengthen the center of gravity amount of movement.
Invention as described is fixed on the part of housing with above-mentioned axle, and the density by the double as bearing is the high sliding resin below 1.8, and eccentric rotor is rotatably installed on this axle.
Like this, can save 2 oiliness bearings.
Invention as described, the change over switch that is configured on the eccentric rotor is made of printed substrate, and periphery is in the inboard of above-mentioned several armature coil peripheries, is high density composite engineering plastics more than 5 in the outside of this change over switch configuration density.
Like this, more can strengthen the center of gravity amount of movement.
Effect of the present invention:
As mentioned above, among the present invention, because outer circumferential side is the high density engineering plastics of density 5 or more, inboardly is the synthetic resin of the resin of density below 1.8 as the formation eccentric rotor, so, not varying sizedly can strengthen the center of gravity amount of movement.Therefore, vibratory output can be guaranteed, and lightweight can be realized by inboard resin, so, can satisfy the light-weighted requirement of motor itself.In addition owing to protuberance A is set in periphery, thereby center of gravity move to radial direction more, more effective.
With reference to the accompanying drawings, describe embodiments of the invention in detail.
Fig. 1 is the plane graph of the 1st embodiment of the eccentric rotor of flat non-iron electrocardiograph of the present invention.
Fig. 2 is the plane graph of the 2nd embodiment of above-mentioned eccentric rotor.
Fig. 3 has adopted the flat coreless vibrating motor of Fig. 2 embodiment eccentric rotor to want portion's sectional drawing.
Fig. 4 is that the rotor of the present invention the 2nd embodiment is wanted portion's sectional drawing.
Fig. 5 is that existing rotor is wanted portion's sectional drawing.
Fig. 6 is the plane graph of eccentric rotor shown in Figure 5.
Fig. 1 is that the embodiment of the rotor of flat coreless vibrating motor of the present invention wants facial planes figure.The flat shape of eccentric rotor 9 is identical with existing eccentric rotor basically.Promptly, 3 armature coil a, b, c are not offset to a side with 60 ° of intervals with overlapping each other, with these armature coils a, the integrally formed resin of b, c, be that the employing outer circumferential side is that high density composite engineering plastics (forming with the bonding tungsten powder of the polyamide) M of density 12, interior all sides are the resin L of density about 1.4.Among the figure, K is the junction surface that prevents that high density composite engineering plastics (forming with the bonding tungsten powder of polyamide) M from throwing off.
Adopt the flat coreless vibrating motor of this eccentric rotor 9, identical with prior art shown in Figure 5, its explanation is omitted.
Fig. 2, Fig. 3 are the plane graphs of wanting portion's sectional drawing and this rotor of the flat coreless vibrating motor of expression the present invention the 2nd embodiment.
That is, in the rotor 99,3 armature coil a, b, c do not put by a lateral deviation with 60 ° of intervals with overlapping each other.
In order to save resource, the periphery of ring-type neodium magnet 33, anchors on the supporting plate 22 with bonding agent (figure does not show) more less than the cycle external diameter of above-mentioned eccentric rotor than prior art shown in Figure 5.
Therefore, between the inboard of the external diameter of this magnet 33 and box 1, form space 123.
In this space 123, extending protuberance A (this protuberance A is integrally formed in eccentric rotor 99 peripheries with high density composite engineering plastics M), disposing by the space.
Other structure is identical with prior art shown in Figure 5, and its explanation is omitted.
Fig. 4 is the 3rd embodiment of the present invention, expression fixed shaft type flat coreless vibrating motor want portion's section.That is, fixing thin axle 77 in the central authorities of supporting plate 222, is that the eccentric rotor 999 of about 1.5 high being made of one of sliding resin can be rotated to support on this axle 77 with low-friction coefficient and density with the inboard.With similarly above-mentioned, in this eccentric rotor 999,3 armature coil a, b, c do not put by a lateral deviation with 60 ° of intervals with overlapping each other.The periphery of these armature coils a, b, c with interior and the foregoing description similarly, and the dull and stereotyped change over switch 110 that printed substrate constitutes is integrated, in its foreign side, extends the protuberance A that high density composite engineering plastics M makes.
The front end of thin axle 77 imbeds by the sliding packing ring among the through hole 1a of box 1, can bear the impact of side like this.
Other structure is same as described above, annotates with same numeral, and its explanation is omitted.
Like this, do not need 2 bearings, assembling easily.
Claims (4)
1. one kind is strengthened the flat coreless vibrating motor that center of gravity moves, have: armature coil is configured in a side and uses the integrally formed eccentric rotor of synthetic resin, be configured in the axle at this eccentric rotor center, housing by the rotatable eccentric rotor of this supporting, be configured in the part of this housing and supply with the magnet of magnetic flux to eccentric rotor, be configured in the brush of above-mentioned housing part the interior side of this magnet, the change over switch that is configured on the eccentric rotor and slips with the brush front end, it is characterized in that, constituting the synthetic resin of above-mentioned eccentric rotor, is that outer circumferential side density is the high density composite engineering plastics more than 5, inboard density is the resin below 1.8.
2. strengthen the flat coreless vibrating motor that center of gravity moves according to claim 1, it is characterized in that, the external diameter of above-mentioned magnet is less than the cycle periphery of above-mentioned eccentric rotor, magnet one side in this eccentric rotor periphery, the protuberance that setting is made of the above-specified high density composite engineering plastics is configured at least a portion of this protuberance in the space between above-mentioned magnet periphery and the housing by the space.
3. strengthen the flat coreless vibrating motor that center of gravity moves as claimed in claim 1 or 2, it is characterized in that, above-mentioned axle is fixed on the part of housing, and the density by the double as bearing is the high sliding resin below 1.8, and eccentric rotor is rotatably installed on this axle.
4. as the increasing center of gravity moves as described in each in the claim 1 to 3 flat coreless vibrating motor, it is characterized in that, the change over switch that is configured on the above-mentioned eccentric rotor is made of printed substrate, periphery is in the inboard of above-mentioned several armature coil peripheries, is high density composite engineering plastics more than 5 in the outside of this change over switch configuration density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98102591 CN1206240A (en) | 1997-07-04 | 1998-07-03 | Centre-of-gravity motion increased flat coreless vibrating motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP195183/97 | 1997-07-04 | ||
| CN 98102591 CN1206240A (en) | 1997-07-04 | 1998-07-03 | Centre-of-gravity motion increased flat coreless vibrating motor |
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| Publication Number | Publication Date |
|---|---|
| CN1206240A true CN1206240A (en) | 1999-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98102591 Pending CN1206240A (en) | 1997-07-04 | 1998-07-03 | Centre-of-gravity motion increased flat coreless vibrating motor |
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| CN (1) | CN1206240A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306683C (en) * | 2004-09-09 | 2007-03-21 | 金龙控股集团有限公司 | Flat oscillating motor |
| CN100385122C (en) * | 2001-07-31 | 2008-04-30 | 株式会社电装 | Fuel oil pump |
| US7723881B2 (en) | 2005-12-26 | 2010-05-25 | Byd Company Limited | Flat type motorized vibrators with high vibration output |
| CN102149482B (en) * | 2008-09-12 | 2013-03-27 | 田中稔 | Vibration motor |
-
1998
- 1998-07-03 CN CN 98102591 patent/CN1206240A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385122C (en) * | 2001-07-31 | 2008-04-30 | 株式会社电装 | Fuel oil pump |
| CN1306683C (en) * | 2004-09-09 | 2007-03-21 | 金龙控股集团有限公司 | Flat oscillating motor |
| US7723881B2 (en) | 2005-12-26 | 2010-05-25 | Byd Company Limited | Flat type motorized vibrators with high vibration output |
| CN1992474B (en) * | 2005-12-26 | 2010-08-25 | 比亚迪股份有限公司 | Flat vibrating motor for increasing vibration |
| US7969053B2 (en) | 2005-12-26 | 2011-06-28 | Byd Company Limited | Flat type vibration motor with increased vibration amount |
| CN102149482B (en) * | 2008-09-12 | 2013-03-27 | 田中稔 | Vibration motor |
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