CN1697709A - Vibration generator and electronic apparatus - Google Patents
Vibration generator and electronic apparatus Download PDFInfo
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- CN1697709A CN1697709A CN 200480000641 CN200480000641A CN1697709A CN 1697709 A CN1697709 A CN 1697709A CN 200480000641 CN200480000641 CN 200480000641 CN 200480000641 A CN200480000641 A CN 200480000641A CN 1697709 A CN1697709 A CN 1697709A
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
There is provided a vibration generator ( 40 ) in which a rotor with an unbalancer is rotated. The vibration generator includes a bottom plate ( 47 ) having a flat coil substrate ( 120 ) installed thereto, a stationary shaft ( 91 ) provided perpendicularly to the bottom plate, a magnet ( 85 ) installed on the stationary shaft ( 91 ) with a freely rotatable bearing being disposed between them and opposite to the surface of the flat coil substrate ( 120 ) with a slight clearance defined between them, and a weight ( 87 ) installed to the magnet ( 85 ). For generating a vibration, a current is supplied to the coil on the flat coil substrate ( 120 ) to rotate the magnet ( 85 ) and weight ( 87 ). The bottom plate ( 47 ) is formed from a nonmagnetic material. A thin magnetic plate ( 48 ) is installed at the side opposite to the magnet ( 85 ) with the bottom plate ( 47 ) being placed between the thin magnetic plate ( 48 ) and magnet ( 85 ).
Description
Technical field
The present invention relates to vibrative vibration generating arrangement and adopt the electronic equipment of this vibration generating arrangement by rotary rotor.
The application is applied at the application to be that the basis requires priority in Japan in the Japanese patent application No. 2003-157471 of application on June 3rd, 2003 and the Japanese patent application No. 2003-286438 of application on August 5th, 2003 with reference to these applications.
Background technology
An example as electronic equipment exemplifies pocket telephone, and pocket telephone has can be by the structure that vibration informs that user's information receives takes place under the occasion of so-called customary model.In such pocket telephone built-in take place vibration, as the vibration generating arrangement of vibration actuator.As this vibration generating arrangement, the small vibrating motor that the eccentric counterweight of usefulness takes place in vibration that has of No. 3187029 communique record of Japan Patent is arranged.
Yet, existing vibration generating arrangement as described above, the problem below existing.That is, adopt the motor of so charged brush, can't eliminate the unfavorable condition of not rotating that so-called slit short circuit causes etc. fully, therefore exist vibration that the problem of the reliability aspect of action takes place.
In addition, though till motor body can be reduced to for example about diameter 3.5mm, exist revolution or consume the problem that electric power excessively increases.For power consumption, power consumption is low more good more, and the aspects such as life-span of the battery that this point obviously can adopt from prolong the such portable electric appts of pocket telephone are understood.Based on to the miniaturization of the electronic equipment that carries such vibration generating arrangement and the requirement of slimming, wish that vibration generating arrangement is arranged and have the miniaturization of electronic equipment of this device and the simplification of structure.
Based on such viewpoint, considered the device of tabular (monetary apparatus) as small-sized vibration generating arrangement.When further making this flat vibration generating arrangement miniaturization, the weight that miniaturization and slimming caused that produces rotor reduces the gravitation to the base plate direction that the magnetic force that makes by magnet produces makes friction increase, hinder the such problem of rotor rotation.Though also can consider magnet reduced or with the base plate attenuate to weaken magnetic force, the torque that can cause rotor like this reduces or constructional undercapacity, is difficult to obtain the high vibration generating arrangement of reliability.
Summary of the invention
The objective of the invention is to, be suitable for and solve the novel vibration generating arrangement of prior art problems as described above and the electronic equipment that adopts this vibration generating arrangement.
Another object of the present invention is, provides the torque of the rotor that can not cause rotational vibrations to reduce or vibration generating arrangement that textural undercapacity and reliability are high and the electronic equipment that adopts this vibration generating arrangement.
The vibration generating arrangement that the present invention relates to that proposes in order to reach above-mentioned purpose, have: the base plate that flat coil substrate is installed, vertically be arranged on the fixed axis on the described base plate, by the bearing that freely rotates relative to described fixed axis install and and the surface of described flat coil substrate between separate minim gap and the magnet of configuration and be installed on the uneven weighing apparatus of described magnet in opposite directions; By to being arranged on the coil electricity on the described flat coil substrate, described magnet and uneven weighing apparatus are rotated and vibrating; Wherein, base plate is made of nonmagnetic material, simultaneously, at the opposition side of described magnet the magnetic thin plate has been installed across described base plate.
The vibration generating arrangement that the present invention relates to, because base plate is made of nonmagnetic material, thus between magnet and base plate, can not produce the attraction that causes by magnetic force, thus the situation that the rotatory force of the rotor that comprises magnet is hindered by this attraction eliminated.And, owing to the magnet opposition side magnetic thin plate is being installed across base plate, so, can prevent that attraction between this magnetic thin plate and the magnet from making floating that the rotation of the rotor that comprises magnet causes.That is, can set optimal attraction, thereby can adjust the attraction of magnet, can not damage the rotation of rotor, and can prevent floating of rotor by the area of magnetic thin plate.
The vibration generating arrangement that the present invention relates to can make the rotor with pouring weight be difficult to take place the axle runout when rotating, and life-saving also can be corresponding to the miniaturization or the slimming of the electronic equipment that carries this device.And, can restraining device self miniaturization, the rotational loss of the rotor that causes of slimming, simultaneously, what can prevent that the rotation of rotor from producing floats.
Further specify other purposes of the present invention, concrete advantage that the present invention was obtained with the embodiment of reference description of drawings below.
Description of drawings
Fig. 1 is the front elevation of expression as the pocket telephone of the electronic equipment with the vibration generating arrangement that the present invention relates to.
Fig. 2 is the back view that expression has the pocket telephone of the vibration generating arrangement that the present invention relates to.
Fig. 3 is the axonometric drawing of the vibration generating arrangement that the present invention relates to of expression.
Fig. 4 is the decomposition axonometric drawing of the housing of expression vibration generating arrangement.
Fig. 5 is the in-built partial cutaway plane of expression vibration generating arrangement.
Fig. 6 is the ground plan of expression vibration generating arrangement.
Fig. 7 is the A-A line sectional view of vibration generating arrangement shown in Figure 6.
Fig. 8 is the in-built side cross-sectional view of expression vibration generating arrangement.
Fig. 9 is the decomposition axonometric drawing of expression rotor and stator.
Figure 10 is the plane of the flat coil of expression stator side.
Figure 11 is the plane of distributing board of the ground floor of the flat coil of expression.
Figure 12 is the plane of distributing board of the second layer of the flat coil of expression.
Figure 13 is the plane of the 3rd layer distributing board of the flat coil of expression.
Figure 14 is the plane of the 4th layer distributing board of the flat coil of expression.
Figure 15 A is the side view that the pouring weight of usefulness takes place in the expression vibration.
Figure 15 B is the plane that the pouring weight of usefulness takes place in the expression vibration.
Figure 16 is the sectional view of other examples of expression vibration generating arrangement.
Figure 17 A～Figure 17 C is the plane of layout of representing the electric connection terminal of circular cone coiled type respectively.
Figure 18 A is the plane of another example of the electric connection terminal of expression beam type.
Figure 18 B is the side view of another example of the electric connection terminal of expression beam type.
The specific embodiment
Vibration generating arrangement that the present invention relates to and the electronic equipment that adopts this vibration generating arrangement are described with reference to the accompanying drawings.
The vibration generating arrangement that the present invention relates to is used for the pocket telephone of Figure 1 and Figure 2.The pocket telephone 10 of an example of the electronic equipment of the vibration generating arrangement that the present invention relates to as employing, for example be to carry wave frequency to count the telephone set that the band territory is the digital form of 0.8～1.5GHz, as shown in Figures 1 and 2, have basket 12, antenna 14, display part 16, operating portion 18, Mike 20, loudspeaker 22 etc.
Operating portion 18 has various operated keys as shown in Figure 1, has cut-out button 18B, numerical key (the テ Application キ one) 18C etc. of conversation button 18A, conversation.Display part 16 for example can adopt liquid crystal indicator.
Basket 12 has front portion shown in Figure 1 24 and rear portion 26 shown in Figure 2, can 26 sides be installed by battery 28 dismantledly at the rear portion.Antenna 14 can be extracted out and can insert basket 12 ground and be installed with from basket 12.
Adorned the vibration generating arrangement 40 that the present invention relates in the basket 12 shown in Figure 1.This vibration generating arrangement 40 for example in pocket telephone 10, vibrates when receiving signal, has to inform that the user receives the function of signal with vibration.
Fig. 3 is the axonometric drawing of the concrete structure of explanation vibration generating arrangement.This vibration generating arrangement 40 is also referred to as vibration actuator, has housing 43 and the vibrating motor 50 that is configured in the housing 43.
Fig. 4 is the decomposition axonometric drawing that constitutes the housing 43 of vibration generating arrangement 40, has omitted the diagram of vibrating motor 50 in Fig. 4.Housing 43 has cover 45, base plate 47 and magnetic thin plate 48.
The cover 45 of housing 43 is by magnetic conductive material metal for example, for instance by iron or have the stainless steel of magnetic or silicon steel plate etc. is made, is magnetic circuit closed parts.And, in the occasion that does not need cover 45, can certainly not cover.
The aluminium that base plate 47 is made of nonmagnetic substance or stainless steel etc. are made, and form roughly foursquare plate member.Four corners at base plate 47 are being provided with calking portion 49.And formed hole 51 in the central authorities of base plate 47.
Around the hole 51 of base plate 47, be provided with a plurality of holes 400 with equal intervals.Base plate 47 is made of nonmagnetic substance, thereby, between the magnet 85 of rotor 80 and base plate 47, can not produce the attraction that the magnetic force by magnet 85 causes, the rotatory force of rotor 80 grades can not hindered by this attraction.
Magnetic thin plate 48 is by magnetic conductive material metal for example, for instance by iron or have the stainless steel of magnetic or silicon steel plate etc. is made.Magnetic thin plate 48 is installed in the opposition side (outside of base plate 47) of the magnet 85 of rotor 80 across base plate 47, thereby, attraction between this magnetic thin plate 48 and the magnet 85 is drawn magnet 85 to base plate 47 side draughts, what can prevent to be caused by the rotation of rotor 80 floats.
The cover 45 of Fig. 4 has roughly flat 53 and four bights 55 of sub-circular.Form breach 57 respectively in four bights 55.In these breach 57, embed the calking portion 49 of the correspondence position of base plate 47,, as shown in Figure 3 cover 45 and base plate 47 are assembled into one under the state of accommodating vibrating motor 50 by with calking portion 49 riveted mechanically.
Magnetic thin plate 48 is mounted on the base plate 47 by bonding agent etc.And magnetic thin plate 48 also can paste the state that can install and remove.Thus, can change other sizes or shape as required and easily into.
Vibrating motor 50 usefulness electric connection terminals 270 shown in Figure 3 are electrically connected then with main circuit substrate 99.
Fig. 5 is the partial cutaway plane of the shape example of expression vibration generating arrangement, and the state behind the cover 45 shown in Figure 4 is removed in expression.Fig. 6 is the ground plan of the shape example of expression vibration generating arrangement, and Fig. 7 is the A-A line sectional view of vibration generating arrangement shown in Figure 6.Fig. 8 is a sectional view of further representing cross-sectional configuration shown in Figure 7 in detail.
As shown in Figure 4, cover 45 for example is to be made by iron or the such material that can form magnetic circuit of stainless steel.In the space in base plate shown in Figure 5 47 and cover 45, accommodating vibrating motor 50 and for example a plurality of electronic unit 71,72,73,74.
In the vibrating motor 50 of vibration generating arrangement 40, stator 83 can support rotor 80 rotationally.Switch on to the tabular coil 120 of stator 83 from the major loop substrate 99 of Fig. 3, thus, rotate by making rotor 80, the rotor 80 of the vibrating motor 50 of vibration generating arrangement 40 produces vibration.
At first, the structure to the rotor 80 of vibrating motor 50 describes.Rotor 80 shown in Figure 7 can be that center relative stator 83 is rotated continuously with central shaft CL.As shown in Figure 8, rotor 80 has bearing 150, sleeve 151, magnet 85, vibration generation pouring weight 87 and rotor yoke iron 89.
Bearing 150 is cylinder-like parts, and this bearing 150 is for example made by sintering metal or resin.Adopt under the situation of this resin, for example can adopt PPS (polyhenylene sulfuration thing) etc.
The magnet 85 of driving usefulness shown in Figure 8 is disposed at the outer peripheral face of sleeve 151.Magnet 85 is round or ring-type, the agglomerated material that for example adopts neodymium system or SmCo (サ マ コ バ) to be.Magnet 85 for example adopts the inner face of adhesive securement in rotor yoke iron 89.To be that the S utmost point and the N utmost point are along the circumferential direction alternatively multipole magnetized form magnet 85 shown in Figure 8.
In the occasion of carrying out ultrasonic bonding, by end face the projection (not shown) of triangular pyramidal is set, thereby can applies ultrasonic wave expeditiously by this projection and weld from applying hyperacoustic bugle at sleeve 151 (at sleeve 151 and bearing 150 for being bearing 150 under the situation of one).The diameter of the diameter of rotor yoke iron 89 and magnet 85 is roughly the same.
On the outer peripheral face of the rotor yoke iron 89 of Fig. 8 and magnet 85, pouring weight 87 is being set.Pouring weight 87 has the shape of semi-circumference shape such shown in Figure 15 A and Figure 15 B, for example is fixed in rotor yoke iron 89 and pouring weight by calking or bonding or other fixing means as shown in Figure 5.
This pouring weight 87, thus be that to be used to make rotor 80 shown in Figure 5 be that the uneven weighing apparatus that the rotation imbalance energy is taken out as vibration component are rotated continuously to stator 83 in the center with the central shaft CL of axle 91.Pouring weight 87 is for example made by the great material of tungsten geometric ratio.
Below, the structure of stator 83 shown in Figure 8 is described.Stator 83 has base plate 47, magnetic thin plate 48, tabular coil 120, fixed axis 91, terminal frame 250 and electric connection terminal 270.
The terminal frame 250 of Fig. 8 has rectangular shape shown in Figure 6, is to be used for parts that 270 pairs of base plates 47 of electric connection terminal are fixed.For example PPS, LCP (liquid crystal polymer) etc. make terminal frame 250 by the resin with electrical insulating property.This terminal frame 250 is illustrated in Fig. 6, almost is covered with whole of base plate 47.But terminal frame 250 has 255, two electric connection terminals of two peristomes 270,270 and exposes from this peristome 255.
The fixed axis 91 of Fig. 8 is for example to be located at the fixing axle of cover 45 and base plate 47 by welding to hang down.The center of fixed axis 91 is central shaft CL.The inner face 45H of cover 45 is fixed in one end of fixed axis 91 by welding portion 45G.Similarly, the inner peripheral surface 47H of the hole portion of base plate 47 is fixed in the other end of fixed axis 91 by welding portion 47G.
Fixed axis 91 is for example made by stainless steel, gets quite short along the length setting of central shaft CL.One end of fixed axis 91 and each end face of the other end are not tabular surfaces but form the curved surface of convex.
Thus, an end of fixed axis 91 and the other end can positively be fixedly welded on cover 45 and base plate 47 by welding portion 45G, 47G.And a side of the end face of fixed axis 91 or both sides also can be tabular surface as required.
This fixed axis 91 inserts in the bearing 150 of rotors 80, can be to bearing 150 radially supported rotationally.
Below, the structure of the tabular coil 120 of stator 83 is described.The tabular coil 120 of Fig. 8 has a plurality of driving templates (パ one Application) 121 shown in the decomposition axonometric drawing of Fig. 9.These drive template 121 is the center with central shaft CL, is along the circumferential direction arranging around the 120H of hole.
Figure 10 is the plane of shape example of the driving template of expression tabular coil 120.Drive template 121 and have roughly fan-shaped shape respectively, for example drive template 121 and form six about circumferencial direction.This tabular coil 120 is for example pasted the inner face 47M that is fixed in base plate 47 shown in Figure 9 by bonding agent.
A plurality of electronic units 71～74 are directly pasted by bonding agent and are fixed in tabular coil 120, and each electronic unit 71～74 sees through tabular coil 120 and is electrically connected then with required position.Tabular coil 120 is laminated by several thin flexible wirings.
Figure 11～Figure 14 is the plane of shape example of the Wiring pattern of several distributing boards of expression.Figure 11 represents the distributing board 311 of ground floor, and Figure 12 represents second layer distributing board 312, and Figure 13 represents the 3rd layer of distributing board 313, and Figure 14 represents the 4th layer of distributing board 314.
These distributing boards 311～314 pass through stacked and mutual electrical connection, and formation respectively drives template 121 thus.Like this, drive template 121 and for example constitute, therefore have advantage as described below by ground floor distributing board 311～4th layer distributing board 314 is stacked.
That is, each drives template 121 and for example constitutes by ground floor distributing board 311～4th layer distributing board 314 is stacked, therefore drives magnetic field that template 121 produces and can be far longer than magnetic field with a distributing board acquisition.
Therefore, the interaction in the magnetic field of the magnetic field that produces by tabular coil 120 energising and the driving usefulness magnet 85 of rotor 80 sides can make rotor 80 relative stator 83 rotate continuously with big driving force.
Therefore, pouring weight 87 can produce bigger vibration component, so even vibration generating arrangement 40 miniaturizations and slimming also can obtain bigger vibration.
On distributing board 311～the 4'sth of Figure 11～ground floor shown in Figure 14 layer distributing board 314, represent that respectively U phase, V phase, W are mutually and public phase (コ モ Application) distribution (C).The tabular coil of in Fig. 8, representing in this wise 120, in order to improve the rotating drive power of rotor 80, and for example by four layers of stacked formation of distributing board.
Above-mentioned tabular coil 120 is such stacked many distributing boards and become several layers (for example four layers) as mentioned above, thus, and the increase of the torque constant in the time of can seeking rotor 80 and rotate, and can seek the slimming and the miniaturization of vibration generating arrangement 40.Each taking-up electrode that drives 121 pairs of U layers of template, V layer, W layer is connecting, and takes out electrode and is electrically connected with major loop substrate 99 shown in Figure 3 and follows.
Come what may, tabular coil 120 is pasted with flat base plate 47 and is fixed, so vibration generating arrangement 40 can be realized slimming and realize miniaturization about diametric(al) about central shaft CL direction.
The magnetic thin plate 48 that the outside of base plate 47 is installed with, as illustrating in front, the base plate 47 that is made of nonmagnetic material is formed the thin plate that is made of the magnetic material, produce the attraction of 85 of the magnet of that can not produce and the rotor 80 of 47 of base plates by this magnetic thin plate 48, prevent rotor 80 grades rotation caused floats.
Because base plate 47 is made of the nonmagnetic material material, so base plate 47 does not produce the attraction of magnet 85, thus, rotor 80 can deflection chassis 47 sides, can make that rotor 80 is small-sized, light-weighted to obtain enough driving torques simultaneously by the contact friction that reduces by 47 of bearing 150 and base plates.
On the other hand, owing to do not produce attraction between base plate 47 and the magnet 85, so words of not taking measures, can cause: the rotation of rotor 80 causes rotor 80 to float, rotor yoke iron 89 or bearing 150 are contacted with cover 45, or make the space change of magnet 85 and tabular coil 120, the unfavorable condition that hinders the rotation of rotor 80.
At this, magnetic thin plate 48 is installed on base plate 47 among the present invention, make magnet 85 be attracted to base plate 47 sides thus, prevent rotor 80 rotation caused floats.
And, owing to can adjust the attraction of magnet 85 by the area of magnetic thin plate 48, so the excessive and rotation loss that causes of the attraction of rotor 80 can not take place, and can set the attraction that the rotor 80 that can prevent to be caused by rotation floats easily.
The decision of the area of this magnetic thin plate 48, design pattern by vibration generating arrangement 40 is tried to achieve by the attraction of needs in advance, but taking place under the situation of foozle etc., can guarantee that the regulation of rotor 80 rotates and prevent to float by the erection space of magnetic thin plate 48 being carried out inching, thereby can significantly improve the yield rate of product.
In addition, owing to can not change base plate 47, and adjust the attraction of rotor 80 by changing the outer magnetic thin plate of adorning 48, so can structural damage intensity.
These electronic units 71～74 can be assembled on the flexible wiring 123 by flowing back to unifications such as (リ Off ロ one).And these electronic units 71～74 for example are the such parts of bare chip (ベ ァ チ ッ プ), are about the 2mm angle as its size of an example.
The height of the central shaft CL direction of these electronic units 71～74 is the such sizes of pouring weight 87 of not touching rotor 80 shown in Figure 8.That is, pouring weight 87 and electronic unit can be superimposed in the viewed in plan of Fig. 5, like this, can seek the miniaturization of width dimensions of the vertical and horizontal of the vibration generating arrangement 40 observed with Fig. 5.
The electric connection terminal 270 of vibration generating arrangement 40 can with tabular coil 120 respectively drive template 121 or each electronic unit 71～74 is electrically connected on major loop substrate 99.
As shown in Figure 5, partly formed hole 400 in each approximate centre that drives template 121.This hole 400 is also illustrated among Fig. 4 and Fig. 9.Each hole 400 is formed at the core that respectively drives template 121 respectively, but this hole 400 also is formed at the position of corresponding base plate 47.The irrelevant position of part takes place in the driving force that each hole 400 was formed at and drove template 121.
Figure 16 is the sectional view of other examples of the vibration generating arrangement that the present invention relates to.This vibration generating arrangement 40 adopts the electric connection terminal 270 of coiled type as the terminal that is electrically connected with the major loop substrate.
The electric connection terminal 270 (with reference to Fig. 7) of the vibration generating arrangement 40 that illustrates in preamble is that the conductive metal by the cantilever beam form constitutes, but has adopted the electric connection terminal 270 of circular cone coiled type in this embodiment.
Like this, because conductive metal can strain, and needed area can be less than the conductive metal of cantilever beam form when being connected with major loop substrate 99, thereby can seek the miniaturization of loop substrate 99 and improve design freedom.
Figure 17 A～Figure 17 C is the plane of layout of the electric connection terminal of the circular cone coiled type that uses in the expression vibration generating arrangement shown in Figure 16.Figure 17 A represents that two electric connection terminals 270 are configured in the example on right side among the figure of vibration generating arrangement 40, and Figure 17 B represents that two electric connection terminals 270 are configured in the example of corner portion at the formation diagonal angle of vibration generating arrangement 40.No matter adopt which kind of layout, as long as by distribution layout decision as the loop substrate 99 of connecting object.
In addition, Figure 17 C is the example of each corner portion configuration of four electric connection terminals, 270 corresponding vibration generating arrangements 40.Each electric connection terminal 270 is for example corresponding to the U that receives tabular coil 120, V, W, with public these four phases mutually.
The quantity or the layout of electric connection terminal 270 are not limited to this, as long as meet the electric current of receiving tabular coil 120 or the local setting of distribution cloth of loop substrate 99.
And Figure 18 A and Figure 18 B are the ideographs of another example of the electric connection terminal of expression beam type.Figure 18 A is its plane, and Figure 18 B is a side view.That is, this electric connection terminal 270 is cantilever beam forms, overlooks to be L word sigmoid, and the electric connection terminal 270 of two L word shapes disposes along two limits of vibration generating arrangement 40 respectively.
By so electric connection terminal 270 being the configuration of L word sigmoid ground, can compare the length of increase with the electric connection terminal of linearity from stiff end 270a to free end 270b, guarantee sufficient elasticity, simultaneously, the transversal displacement of pad (パ ッ De) when contacting of free end 270b and loop substrate 99 can be reduced, the size of pad can be reduced.
And, the electric connection terminal 270 of L word shape disposes with mutual different directions, and thus, the position configuration of free end 270b is at the diagonal angle of vibration generating arrangement 40, can strengthen the interval of two pads of loop substrate 99 correspondences, can avoid the interference between pad and increase the free degree of pad layout.
As mentioned above, the vibration generating arrangement 40 that the present invention relates to has been accommodated vibrating motor 50 in housing 43 shown in Figure 3.This vibrating motor 50 has adopted the tabular coil 120 of the magnet 85 of rotor 80 and stator 83 structure faced mutually of the what is called of devices spaced apart slightly.Thus, the vibration generating arrangement 40 that comprises vibrating motor 50 can be compared slimming significantly with the motor of existing charged brush about the thickness of central shaft CL direction.
And pouring weight 87 is for example made by the such heavy material of tungsten, only adopts extremely thin and small-sized pouring weight 87, and vibrating motor 50 just can produce the vibration component that big rotation imbalance energy causes when rotary rotor 80.
And the cover 45 of housing 43 shown in Figure 3 forms the tube reducing shape, can improve rigidity thus and seek lightweight and slimming.
And then, the slim magnet 85 and the tabular lamellar coil 120 of flexible printing distribution of agglomerated material have been adopted by use, not only can seek miniaturization and slimming, can also seek to reduce power consumption about the central shaft CL direction of vibration generating arrangement 40.
And, preferably with the stacked formation tabular of several distributing boards coil 120.These several distributing board is called stacked coil.Each stacked coil the insulating properties material for example Merlon internal configurations the coil copper cash.
In addition, the several electrons parts for example can be electrically connected with the electrode on flat coil 120 top layers by terminal conjunction method etc.
Among the present invention, the fixed axis 91 of stator 83 sides for example can be fixed in cover 45 and base plate 47 by the YAG laser weld.But the fixing means of this fixed axis 91 is not limited to welding, and is bonding or be pressed into or calking can certainly.At this moment, the two ends of fixed axis 91 are that dome shape is also passable, but are smooth planar then better like that as has already been described.
And the bearing 150 of rotor 80 for example can be made of the PPS of carbon fiber-containing.This bearing cylindraceous is not limited to plastics, also can be sintering metal.
In addition, among the present invention, the fixed axis 91 that the bearing 150 of rotor 80 can relative stator 83 sides rotates, thus, compare with the mode that supports rotationally of bearing that the axle of existing rotor-side can the relative stator side, do not have the arena hammer motion of rotor, a beat can not take place in rotor when rotating.
That is, the bearing 150 of rotor reduces with the abrasion of the slipper of the fixed axis 91 of stator 83, and the life-span of vibration generating arrangement 40 is prolonged.And, because the fixed axis 91 of bearing 150 relative stator 83 sides of rotor 80 sides can support rotationally, so, even the axial length of vibration generating arrangement 40 is little, also can reduce the axle beat of rotor 80 when rotating of vibration generating arrangement 40 as far as possible.Thus, can seek the slimming and the miniaturization of vibration generating arrangement 40.The length of the axial length of bearing 150 and fixed axis 91 is approaching more, just can further eliminate the axle beat of rotor 80 more.
The invention is not restricted to the foregoing description,, under the situation that does not exceed scope that additional patent asks for protection and purport thereof, obviously can carry out all changes, displacement or the matters equal with it for those skilled in the art with reference to description of drawings.
Industrial applicibility
The vibration generating arrangement that the present invention relates to is not only applicable to pocket telephone, is suitable for yet In other portable communication device, for example portable data assistance or computer or other field Electronic equipment.
Claims (5)
1. vibration generating arrangement, have: the base plate that flat coil substrate is installed, vertically be arranged on the fixed axis on the described base plate, by the bearing that freely rotates relative to described fixed axis install and and the surface of described flat coil substrate between separate minim gap and the magnet of configuration and be installed on the uneven weighing apparatus of described magnet in opposite directions;
By to being arranged on the coil electricity on the described flat coil substrate, described magnet and described uneven weighing apparatus are rotated and vibrating; It is characterized in that:
Described base plate is made of nonmagnetic material, simultaneously, at the opposition side of described magnet the magnetic thin plate has been installed across described base plate.
2. vibration generating arrangement as claimed in claim 1 is characterized in that: described magnetic thin plate plays the magnetic force that utilizes described magnet attracts effect from described magnet to the direction of described flat coil substrate.
3. vibration generating arrangement as claimed in claim 1, it is characterized in that: the area of described magnetic thin plate is, as the attraction that produces between described magnetic thin plate and the affiliated magnet, even described magnet and described uneven weighing apparatus rotate, the also area of the size that can in the gap on the surface of described magnet and described flat coil substrate, not change.
4. vibration generating arrangement as claimed in claim 1 is characterized in that: described magnetic thin plate can be installed to described base plate with freely installing and removing.
5. electronic equipment with vibration generating arrangement, it is characterized in that: described vibration generating arrangement has: the base plate that is made of nonmagnetic material, flat coil substrate is installed, vertically be arranged on the fixed axis on the described base plate, by the bearing that freely rotates relative to described fixed axis install and and the surface of described flat coil substrate between separate minim gap and the magnet of configuration in opposite directions, be installed on the uneven weighing apparatus of described magnet and the magnetic thin plate of installing at the opposition side of described flat coil substrate across described base plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003157471 | 2003-06-03 | ||
| JP157471/2003 | 2003-06-03 | ||
| JP286438/2003 | 2003-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1697709A true CN1697709A (en) | 2005-11-16 |
| CN100396389C CN100396389C (en) | 2008-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800006411A Expired - Fee Related CN100396389C (en) | 2003-06-03 | 2004-06-03 | Vibration generator and electronic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100396389C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112384308A (en) * | 2018-07-11 | 2021-02-19 | 美蓓亚三美株式会社 | Vibration actuator and electronic device |
| CN113395374A (en) * | 2016-11-28 | 2021-09-14 | 美蓓亚三美株式会社 | Electronic device |
| US11901788B2 (en) | 2016-11-28 | 2024-02-13 | Minebea Mitsumi Inc. | Vibration generating device and electronic device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3697883B2 (en) * | 1998-01-30 | 2005-09-21 | 富士ゼロックス株式会社 | Magnetic bearing |
| JP4631068B2 (en) * | 1999-12-15 | 2011-02-16 | 並木精密宝石株式会社 | Small flat brushless vibration motor |
| JP2001231197A (en) * | 2000-02-17 | 2001-08-24 | Suzuka Fuji Xerox Co Ltd | Motor and motor for scanner |
| KR200268109Y1 (en) * | 2001-12-06 | 2002-03-15 | 김정훈 | Flat noncommutator vibration motor |
-
2004
- 2004-06-03 CN CNB2004800006411A patent/CN100396389C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113395374A (en) * | 2016-11-28 | 2021-09-14 | 美蓓亚三美株式会社 | Electronic device |
| CN113395374B (en) * | 2016-11-28 | 2023-10-24 | 美蓓亚三美株式会社 | Electronic equipment |
| US11831213B2 (en) | 2016-11-28 | 2023-11-28 | Minebea Mitsumi Inc. | Electronic device |
| US11901788B2 (en) | 2016-11-28 | 2024-02-13 | Minebea Mitsumi Inc. | Vibration generating device and electronic device |
| CN112384308A (en) * | 2018-07-11 | 2021-02-19 | 美蓓亚三美株式会社 | Vibration actuator and electronic device |
| CN112384308B (en) * | 2018-07-11 | 2022-07-22 | 美蓓亚三美株式会社 | Vibration actuator and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100396389C (en) | 2008-06-25 |
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