CN101486029A

CN101486029A - Vibrator generator and manufacturing method therefor

Info

Publication number: CN101486029A
Application number: CNA2008101547848A
Authority: CN
Inventors: 太田良纯; 渡边敬久
Original assignee: Citizen Electronics Co Ltd
Current assignee: Citizen Electronics Co Ltd
Priority date: 2007-10-11
Filing date: 2008-10-10
Publication date: 2009-07-22

Abstract

A thin electromagnetic exciter has a flat casing including a casing body (2) and a cover (3), a stator (10) including an electromagnet having a coil wound around a yoke, and an oscillator (20) including a bar-shaped permanent magnet and a weight integrally attached thereto. The stator and the oscillator are disposed adjacently over a bottom wall portion (2c) of the casing body. The stator is secured to the casing body. The oscillator is vibratably supported relative to the casing body through resilient support members.

Description

Vibration generating arrangement and manufacture method thereof

Technical field

The present invention relates to be equipped on the vibration generating arrangement and the manufacture method thereof of slim portable equipments such as portable telephone.

Background technology

The slim portable equipment of portable telephone etc. except with the calling tone notice incoming call, also has vibration generating arrangement usually, and this vibration generating arrangement is used in as electric car or the sonorific place of the medium restriction of meeting is notified with vibration.

Existing vibration generating arrangement is the rotation weight by setting-up eccentricity on the rotating shaft of motor mostly, makes this rotation weight rotation come vibrative by motor.But this structural vibrations generating means is not suitable for slimming owing to integral body constitutes drum, and type of drive is the rotation of eccentric weight, so at the stress of overaction on the rotating shaft and cause problem on persistence and the reliability.

A kind of vibration generating arrangement of comparing transverse mode of vibration that can slimming with the vibration generating arrangement of above-mentioned drum has been proposed in TOHKEMY 2002-143770 number.This vibration generating arrangement with band edge subbase seat as matrix, fixed stator piece thereon, this stator block is wound with spiral on yoke, and on this stator block, dispose moveable block, this moveable block is equipped with weight integratedly on permanent magnet, and described moveable block can joltily be supported with respect to described band edge subbase seat via elastic support member.

This vibration generating arrangement applies the driving signal of assigned frequency and produce alternating poles on yoke by the coil to stator block, by the effect of this alternating poles, makes the moveable block oscillation crosswise with permanent magnet.

But this vibration generating arrangement so exist the height of vibration generating arrangement to uprise, hinders the problem of the slimming of the portable equipment that embeds this device owing to pile up stator block and moveable block with respect to band edge subbase seat on the short transverse of this vibration generating arrangement.

Summary of the invention

In view of the above problems, the object of the present invention is to provide a kind of vibration generating arrangement and manufacture method thereof that can realize the transverse mode of vibration of the portable equipment slimming that embeds.

The invention provides a kind of vibration generating arrangement, comprising:

Housing with flat base wall portion;

Have by yoke and be wound on the electromagnet that the coil on this yoke constitutes and this bottom wall portion that is fixed on described housing body on stator block;

Have permanent magnet and the moveable block that is installed in the weight on this permanent magnet; And

In the face of the bottom wall portion of this housing and the mode roughly parallel, this moveable block can be supported at least one elastic supporting part in this housing quiveringly with almost parallel ground with this stator block,

Described moveable block utilization drives the alternating magnetic field that signal produces and vibrates by apply alternation on the coil of described stator block.

In this vibration generating arrangement, by aforesaid structure, can be so that therefore the device overall flat, be applicable to that the equipment such as portable telephone to embedding this vibration generating arrangement carry out slimming.

Specifically, described housing is made of housing body with described bottom wall portion and the lid that covers on this housing body.

In addition, described at least one elastic supporting part comprises two elastic supporting parts at the two ends of supporting described moveable block.

Specifically, described housing body has sidewall, and described two elastic supporting parts are that an end is fixed on the spring body on the sidewall of housing body.

In addition, described housing body is made of metal, and has sidewall, and described spring body forms two elongated metallic plates that extend from the sidewall two ends of housing body and form respectively to the inside bend of this housing.By like this, can reduce number of components, thereby can carry out assembling operation easily.

Described moveable block has the support plate of the described moveable block of supporting, and this support plate is roughly parallel to the bottom wall portion ground of housing by this elastic supporting part supporting.By using support plate, assemble magnet and permanent magnet easily.

Specifically, described moveable block has the tack coat that is configured between described permanent magnet and weight and the described support plate.More particularly, this moveable block has the bonding sheet that is configured between permanent magnet and weight and the described support plate, and described permanent magnet and weight are fixed on the described support plate by bonding sheet.By using tack coat and bonding sheet, can easily assemble moveable block, even if permanent magnet and weight are separated in addition,, also can keep function as vibration generating arrangement by keeping such shape.

Described housing is made of metal, and has sidewall, described at least one elastic supporting part has a pair of spring body, this a pair of spring body forms by the inboard that will extend the metallic plate that forms from the housing sidewall two ends and bend to this housing body, this a pair of spring is connected respectively to the described support plate two ends of described moveable block, and supports this moveable block.

Described lid has sidewall, described spring body forms in the mode of extending from these sidewall two ends of this housing body, on the position of leaving from described two ends forward end direction, be fixedly mounted on the sidewall of described lid, the effective length of described spring body is the length from this hard-wired position to described front end.By such structure, the effective length of regulating spring body easily.

Preferred bar-shaped permanent magnet and this weight are configured in the bottom wall portion of housing in the mode of a slice plate of formation almost parallel.This is in order to make the moveable block slimming

In addition, yoke is set at bar-shaped, and parallel with the bottom wall portion of housing,

The described coil of described stator block has first coiler part of reeling with respect to side's side of the middle body of described yoke, with at second coiler part of reeling with respect to the opposite side of this middle body, this middle body and two end portions at this yoke form magnetic pole piece, thereby the magnetic pole piece in this two end portions produces identical magnetic pole mutually, and the magnetic pole piece in central authorities produces the magnetic pole opposite with the magnetic pole piece of this two end portions, described permanent magnet comprises first and second permanent magnets that linearity connects, this first and second permanent magnet is the opposed and almost parallel with first and second coiler parts respectively, and separately become mutually opposite magnetic pole with the opposed face of first and second coiler parts.

In addition, the invention provides a kind of manufacture method of vibration generating arrangement, be used to form vibration generating arrangement, this device comprises: the housing with flat base wall portion; Have by yoke and be wound on the electromagnet that the coil on this yoke constitutes and this bottom wall portion that is fixed on described housing on stator block; Have permanent magnet and the moveable block that is installed in the weight on this permanent magnet; And with almost parallel ground in the face of the bottom wall portion of this housing and the mode roughly parallel with this stator block, this moveable block can be supported at least one elastic supporting part in this housing body quiveringly, it is characterized in that:

Have following operation:

The housing body expanding body forms operation, form the housing body expanding body in each opening of the opening that on carrying material, forms at certain intervals, the shape after the described housing body that this housing body expanding body has a binding strap supporting that will be extended to the opening inboard by the periphery from this opening is launched;

Housing body forms operation, and the peripheral part of crooked housing body expanding body forms described bottom wall portion and this bottom wall portion side wall portion on every side, thereby forms hypocraterimorphous this housing body;

The moveable block arrangement step in described housing body inside, disposes moveable block by elastic supporting part from the bottom wall portion devices spaced apart of described housing body and with this bottom wall portion almost parallel ground, thereby can support described moveable block quiveringly;

The stator block arrangement step disposes and fixing described stator block with described moveable block almost parallel ground on the base wall of housing body;

Housing forms operation, is disposing covering lid and fixing on the described housing body of described stator block and described moveable block, thereby is finishing described vibration generating arrangement; And

Cut off operation, cut off described binding strap and separate described vibration generating arrangement from this carrying material.

According to this method, supply with carrying material serially and form housing body, can make up parts such as moveable block thereon, so can make vibration generating arrangement efficiently.

Specifically, stamp out the developed plantform shape of described lid from sheet material, the peripheral part of crooked this developed plantform shape forms upper wall portions and side wall portion on every side thereof and constitutes described lid, and so that the mode that its sidewall contacts with the side wall portion of described housing body covers and fix described lid.

In addition, form in the operation at described housing body expanding body, described housing body expanding body has from the extended a pair of strap in both ends as the outer peripheral edges portion of this housing body expanding body of a described side wall portion of housing body, the bending to the inside of described a pair of strap is formed a pair of elastic supporting part, in described moveable block arrangement step, the leading section of described a pair of elastic supporting part is fixed on the both ends of described moveable block respectively, thereby supports this moveable block.By like this, reduced the quantity of parts and carried out the parts assembling easily.

In addition, form in the operation, on part, be formed for locating first through hole of described stator block as the described bottom wall portion of housing body at the described first housing expanding body; Form in the operation in described housing body, will sell chimeric respectively and be fixed in this through hole; In described stator block arrangement step, described pin is entrenched in the location that is arranged on the described stator block respectively uses in the through hole, and this stator block location is configured in the bottom wall portion of described housing body; Form in the operation at this housing, this pin is chimeric with the 2nd through hole of the location usefulness that is arranged on the described stator block on the described lid respectively, described stator block is fixed between described housing body and the described lid.By using pin, can easily determine the position of stator block, even and this vibration generating arrangement is dropped and apply impact, can prevent that also the position of stator block is offset, and can improve the reliability of device.

In addition, form in the operation, on the part of the described side wall portion that becomes described housing body, form a plurality of hasps holding section at described housing body expanding body; Form in the operation at described housing, this hasp holding section is engaged with hasp holding section on the side wall portion that is formed at described lid, and described housing body and described lid are fixed.By like this, lid can be installed easily.

Weight, integral body that moveable block plane earth on a support plate disposes permanent magnet, magnetic and high specific gravity material mutually closely constitute tabular.When can making the moveable block slimming, can constitute the less magnetic circuit of resistance.

Yoke forms bar-shaped, this coil has at first coiler part of reeling with respect to side's side of the middle body of described yoke with at second coiler part of reeling with respect to the opposing party's side of this middle body, this middle body and two end portions at this yoke form magnetic pole piece, magnetic pole piece in described two end portions produces identical magnetic pole mutually, and the magnetic pole piece in central authorities produces the magnetic pole opposite with the magnetic pole piece of this two end portions

Described permanent magnet comprises first and second permanent magnets that linearity connects, and first and second permanent magnets are the opposed and almost parallel with first and second coiler parts respectively, and separately constitute mutually opposite magnetic pole with the opposed face of first and second coiler parts.In this case, the single line of can reeling forms coil, and first and second coiler parts of can mutually reciprocal direction reeling, and winding number is identical substantially.Owing to adopt single line to make two coil portions, so make easily, the circuit that is used to apply alternating voltage in addition is also very simple.

In addition, the present invention also provides a kind of manufacture method of vibration generating arrangement, it is used to form vibration generating arrangement, and described vibration generating arrangement comprises: by the enclosure body with flat base wall portion and cover the flat shell that the lid on this enclosure body constitutes; Have by yoke and be wound on the electromagnet that the coil on this yoke constitutes, and be fixed on stator block on this bottom wall portion of described housing body; Have permanent magnet and the moveable block that is installed in the weight on this permanent magnet; And with almost parallel ground in the face of the bottom wall portion of this enclosure body and with the roughly parallel mode of this stator block, this moveable block can be supported at least one spring body in this enclosure body quiveringly, this at least one spring body extends from this enclosure body, it is characterized in that:

Eigentone with the vibrational system that constitutes by this spring body and moveable block under the state that supports described moveable block by described at least one spring body, the little mode of frequency that drives signal than the alternation of the described electromagnet that is applied to this vibration generating arrangement pre-determines the coefficient of elasticity of this spring body

The eigentone of the vibrational system that mensuration is made of described spring body and moveable block,

Described eigentone is compared with being applied to the frequency that alternation on the described electromagnet drives signal, determines in order to make the length of described eigentone and the identical in fact needed described spring body of described frequency,

To be installed on the described lid than the partial fixing of the front end of the more close described spring body of root portion that extends from described housing body of described spring body, and the effective length of carrying out the described spring body of described vibrational system approaches the adjustment of needed spring body length.

By like this, the frequency that can be easily said fixing frequency and alternation be driven signal be adjusted to identical in fact, thereby can easily make the high vibration generating arrangement of vibration efficiency.

Specifically, described at least one spring body is a pair of spring body that extends from two ends of the side wall portion of described housing body, in the described moveable block of preceding end bearing of described spring body.

Based on accompanying drawing embodiments of the invention are described below.

Description of drawings

Fig. 1 is the stereogram of the vibration generating arrangement of the embodiment of the invention.

Fig. 2 is the last vertical view of lid that takes off the vibration generating arrangement of Fig. 1.

Fig. 3 is the III-III sectional view of Fig. 2.

Fig. 4 is the IV-IV sectional view of vibration generating arrangement shown in Figure 2

Fig. 5 is the expanded view of the housing body of embodiments of the invention.

Fig. 6 is the expanded view of the lid of embodiments of the invention.

Fig. 7 represents the coil case of embodiments of the invention, and Fig. 7 (a) is the stereogram of the yoke of this coil case, and Fig. 7 (b) is the stereogram of coil case.

Fig. 8 constitutes the coil case of the stator block in the embodiments of the invention and the stereogram of FPC.

Fig. 9 is the last vertical view of Fig. 8 stator block.

Figure 10 is the side view of identical stator block.

Figure 11 is the exploded perspective view of the moveable block of embodiments of the invention.

Figure 12 is the stereogram of the moveable block of the embodiment of the invention.

Figure 13 is the XIII-XIII sectional view of moveable block shown in Figure 12.

Figure 14 is used to illustrate the stator block of drive actions of vibration generating arrangement of embodiments of the invention and the stereogram of moveable block.

Figure 15 is used to illustrate the stator block of drive actions of vibration generating arrangement of embodiments of the invention and the stereogram of moveable block.

Figure 16 is the stereogram of the moveable block of second embodiment of the invention.

Figure 17 is the stereogram of the moveable block of third embodiment of the invention.

Figure 18 is the lid of vibration generating arrangement of first embodiment and the stereogram of housing body.

Figure 19 is the figure that is used to illustrate the vibration generating arrangement manufacture method of embodiments of the present invention.

Figure 20 is used for illustrating that the housing body expanding body of this method forms the figure of operation.

Figure 21 is used for illustrating that the housing body of this method forms the figure of operation.

Figure 22 is the figure that disposes the operation of moveable block on housing body that is used for illustrating this method.

Figure 23 is the figure of the state of moveable block that disposes on housing body in this method of expression, (a) is vertical view, (b) is the 23B-23B sectional view of Figure 23 (a).

Figure 24 (a) is the enlarged drawing by the part that surrounds of circle 24A of Figure 23 (a), (b) is the enlarged drawing of the part that is surrounded by circle 24B of Figure 23 (b).

Figure 25 is the exploded perspective view of moveable block.

Figure 26 shows the stereogram of moveable block.

Figure 27 is the figure that is used for describing the coil case of this method, and Figure 27 (a) is the stereogram of the yoke of coil case, and Figure 27 (b) is the stereogram of coil case.

Figure 28 is the side view of stator block.

Figure 29 is the vertical view that expression constitutes the FPC of stator block.

Figure 30 is the figure that is used to illustrate the operation that stator block is installed.

Figure 31 is the figure that is illustrated on the housing body state of configuration fixed block, and Figure 31 (a) goes up vertical view, and Figure 31 (b) is the partial enlarged drawing of the part that is surrounded by circle 31B among Figure 31 (a), and Figure 31 (c) is the enlarged drawing of the part of the round 31C among Figure 31 (a).

Figure 32 be used for illustrating the embodiment of the invention on housing body, cover lid and fixing and form the figure of the operation of housing.

Figure 33 is the partial section of the 33-33 among Figure 32.

Figure 34 is the partial section of the 34-34 among Figure 32.

Figure 35 is used to illustrate that the lid expanding body forms the figure of operation.

Figure 36 is the stereogram of expression by the vibration generating arrangement of said method making.

Figure 37 is the last vertical view that takes off the lid of this vibration generating arrangement.

Figure 38 is the 38-38 sectional view of vibration generating arrangement shown in Figure 37.

Figure 39 is the 39-39 sectional view of vibration generating arrangement shown in Figure 37.

The specific embodiment

In Fig. 1, the 1st, the vibration generating arrangement of one embodiment of the invention, held vibration generating arrangement main body described later in the flat shell inside that constitutes by housing body 2 described later and lid 3 (with reference to Figure 18), and drawn from the one end and to be used for the FPC (flexible print circuit) 5 that is connected with external circuit.In addition, for housing, also can be with roughly the housing of case shape and the roughly flat board of closure casing upper surface form.

Fig. 2 is the last vertical view that the state behind the lid 3 of vibration generating arrangement shown in Figure 11 is taken off in expression, the main part that can see vibration generating arrangement 1.In this device, stator block 10 and moveable block 20 are with the transversely arranged configuration of mode of the long side wall 2a that is parallel to rectangular case main body 2.Thereby, two

pins

6a, 6b that stator block 10 extends by the yoke 12 that connects this stator block 10 of formation, be fixed between housing body 2 and the lid 3, moveable block 20 is such as described later, and two spring bodies (elastic supporting part) 4a, the 4b supporting that forms by the part as housing body 2 is the state that floats (Fig. 2-Fig. 4) in housing body 2.

Lid 3 before the shaping that Fig. 6 represents to form by the punch process sheet metal carries out bending machining along dotted line, forms the lid 3 with upper wall portions 3c, the long side wall 3a of portion, minor face side wall portion 3b as shown in figure 18.Two hole 3d that are arranged among the upper wall portions 3c are the holes that are used for fixing pin 6a shown in Figure 4.

Housing body before the shaping that Fig. 5 represents to form by the punch process sheet metal (promptly, the housing body expanding body) 2, carry out bending machining along dotted line, form housing body 2 as shown in figure 18 with bottom wall portion 2c, long the limit 2a of wall portion, minor face wall 2b of portion.Two hole 2d that are arranged on the bottom wall portion 2c are the holes that are used for fixing pin 6a shown in Figure 4.Above-mentioned spring body 4a, 4b form two long and thin metal plates that extend to form from a long limit 2a of wall portion by bending machining, as shown in figure 18, have the coefficient of elasticity adjustment part 4a1, the 4b1 that represent with rope hook from joint portion 4a0,4b0 with long side wall 2a; Be connected with this coefficient of elasticity adjustment part, and near the 4a2 of spring portion, the 4b2 of the bending (serpentine) of minor face side wall portion 2b; And be fixed on fixed part 4a3,4b3 on the moveable block 20.Under the state that lid 3 is installed on the housing body 2, the corresponding position of 4a1, coefficient of elasticity adjustment part with the housing body 2 of the long side wall 3a of portion of lid 3, become by the coefficient of elasticity adjustment part 3a1 shown in the rope hook, and be in the state that is in contact with one another, and two adjustment parts are fixed in position.As hereinafter described, Gu Ding position is definite for the eigentone of the vibrational system of determining moveable block.

Fig. 7 (b) shows the coil case 11 that constitutes stator block 10, and Fig. 7 (a) shows the yoke 12 of this coil case 11.This yoke has two 12a of spiral portion, 12b of coiling

coil

13,14 and 3

magnetic pole piece

12c, 12d, 12e.On magnetic pole piece 12c, the 12e at two ends, be provided with the hole 12f that is used for fixing.Coil 13 is that coiling direction is opposite, the identical coil of volume number with coil 14.In the present embodiment, two

coils

13,14 are made of the single line astragal, and on winding wire being wound up into the 12a of spiral portion of yoke 12, form after the coil 13, cross magnetic pole piece 12d and be wound up into the 12b of coiling portion and form coil 14.

As shown in Figure 8, in the lift-launch face side of the static line circle body 11 of FPC5, be provided with and be used to conduct electricity two of terminal lead-out wire of connecting

coil

13,14 and connect

electrode

5a, 5b; The external connecting electrode 5c, the 5d that are connected usefulness with the outside.As Fig. 9, shown in Figure 10, by two sides joint fastener etc. coil case 11 is fixed on the lift-launch face side of FPC5, and the lead-out wire of the coil end of

coil

13,14 is soldered to two respectively connects on electrode 5a, the 5b.Thereby the coil end lead-out wire of

coil

13,14 is electrically connected on external connecting electrode 5c, the 5d.Stator block 10 is made of this coil case 11 and FPC5.

As shown in figure 11, moveable block has: permanent magnet 21; With the roughly the same magnetic 26 of this permanent magnet shape size; Weight 24 with the recess 24a that is used to hold this permanent magnet 21 and magnetic 26; Support plate 25; And be used for permanent magnet 21, magnetic 26 and weight 24 are fixed on joint fastener 27 on the support plate 25.Joint fastener 27 is disposed between support plate 25, permanent magnet 21, magnetic 26 and the weight 24.Permanent magnet 21 is the permanent magnets that are fixed with the cuboid of two bar-shaped permanent magnets 22,23, each bar-shaped permanent magnet 22,23 has magnetic pole 22n, 22s, 23n, 23s on the face of the face (face nearby among Figure 11) of facing stator block 11 of growing the limit and opposition side, these each bar-shaped permanent magnet 22,23 magnetic reversals respectively.Weight 24, permanent magnet 21 and magnetic 26 have thickness about equally.Support plate 25 has rectangular stationary plane 25a, has installation portion 25b at each minor face of stationary plane 25a, further, has two position determination portion 25c on each long limit.Joint fastener 27 has the shape roughly the same with the stationary plane 25a of support plate 25.Replace joint fastener, also tack coat can be set.

By the position determination portion 25c of support plate 25, permanent magnet 21, magnetic 26 and weight 24 can correctly be installed with respect to support plate 25.As Figure 12 and as shown in Figure 13, permanent magnet 21, magnetic 26 and weight 24 constitute one and to become a slice tabular.

Above-mentioned moveable block 20 need have good magnetic characteristic and be used for the driving force of its vibration with increase, and needs big weight to increase vibration output.Therefore, in the present embodiment, the material of permanent magnet 21 uses to have good magnetic characteristic and proportion and is bigger 7.4 neodymium sintered alloy, the material of weight 24 uses the high specific gravity material, is that density is 15～18 tungsten alloy in addition, in addition, the material of magnetic 26 uses proportion greater than 7.85 SPCC (soft iron material, mild steel material).

As mentioned above, moveable block 20 of the present invention is used the bigger material of proportion, thus in as the permanent magnet 21 of magnetic material and magnetic 26, can not reduce overall weight substantially, can reduce as the use amount of the tungsten alloy of high price high specific gravity material and realize the cheap of moveable block 20.Though neodymium sintered alloy and tungsten alloy are fragile materials, resist portable equipment drop etc. the impact that causes ability a little less than, but in the present embodiment, owing to will be bonded on the support plate 25 by permanent magnet and the weight that these materials are made by bonding sheet 27, make this bonding sheet have impact absorbency, impact the breakage that brings thereby can reduce, even and if breakage takes place, also can keep shape as a whole.

Figure 14 and Figure 15 are the figure that is used to describe the drive actions of vibration generating arrangement 1.Figure 14 and Figure 15 have represented that the electric current that flows becomes reverse state in

coil

13,14.

Will not drive signal (in fact to the end that is connected to coil 13, be connected to external connection terminals 5c) terminal T1 and the end that is connected to coil 14 (in fact, be connected to external connection terminals 5d) terminal T2 condition of supplying under, between magnetic pole piece 12d, the 12e of the magnetic pole 23n of magnetic pole piece 12c, the 12d of the magnetic pole 22s of permanent magnet 22 and yoke 12 and permanent magnet 23 and yoke 12, attraction works and is in static.

Applying when driving signal (alternation driving voltage), electric current and flowing as shown in Figure 14 to the coil 13 of oppositely reeling mutually and coil 14 by terminal T1 and terminal T2, on

magnetic pole piece

12c, 12e, produce the N utmost point, on magnetic pole piece 12d, produce the S utmost point, the driving force that magnetic pole strength 22s, the 23n in the face of this stator block of moveable block 20 receives from the magnetic attraction of each

magnetic pole piece

12c, 12e, 12d and repulsive force respectively and accept to represent with F1.

If electric current is reverse flow as shown in Figure 15, on

magnetic pole piece

12c, 12e, will produce the S utmost point so, on magnetic pole piece 12d, produce the N utmost point, moveable block 20 is accepted the F2 driving force opposite with the situation direction of Figure 14.

Drive signal by applying alternation like this, moveable block 20 is alternately accepted mutual reverse driving force and is vibrated, and this vibration can be sent to the outside by the housing that is made of housing body 2 and lid 3.

In vibration generating arrangement of the present invention, importantly moveable block can be vibrated efficiently, and this moveable block is vibrated the vibrational system that is meant moveable block the most efficiently and had the identical eigentone of frequency that drives signal with this alternation.Therefore, in the present embodiment, as shown in figure 18, can on the 4a1 of the spring constant adjustment part of

spring body

4a, 4b, determine the fixed position of four position K1～K4, and on any one position in these positions with the spring constant adjustment part 3a1 of lid fixed installation, can determine this spring body 4a from this fixed installation position to front end, the physical length of 4b thus, make the eigentone of the vibrational system of this moveable block drive the frequency of signal near alternation.Specifically, can as following, carry out.

In the vibration generating arrangement 1 before said fixing in carrying out the coefficient of elasticity adjustment part 4a1 of

spring body

4a, 4b is installed, tentatively apply this driving signal on one side if change the frequency that drives signal on one side continuously, find the most at last that then resonance drives the frequency of moveable block 20.The effective length of the spring body 4a (4b) of this moment is set to following length, that is, the eigentone of the vibrational system of moveable block 20 is lower than the length that the alternation that designs drives the frequency of signal in vibration generating arrangement 1.Thereby the eigentone of the vibrational system of the moveable block 20 of this moment will be because the deviation of the stationary state of the deviation of weight of the machining shape deviation of

spring body

4a, 4b, moveable block 20 and spring body 4a and moveable block 20 will produce the deviation result respectively.

Consider the frequency of this moment,, can make the eigentone of the vibrational system of moveable block 20 drive the frequency of signal near the alternation that in this vibration generating arrangement, designs by adjusting the effective length of spring body.In illustrated embodiment, with foregoing the same, on the 4a1 of the coefficient of elasticity adjustment part of

spring body

4a, 4b, determine the fixed installation position of four position K1～K4 in advance, select any one fixed installation position, on this fixed installation position, settle the head of laser-beam welding machine to carry out spot welding by the illustrated opening that do not have that in housing, is provided with.

Figure 16 is the stereogram of the moveable block 30 of expression second embodiment of the invention, and the parts identical with first embodiment give identical symbol and the repetitive description thereof will be omitted.

In this moveable block 30, by constituting width is clamped in a pair of weight 34 than moveable block 20 shorter magnetics 36, increase the volume of weight 34, thereby increased the quality of moveable block 30.

Figure 17 is the stereogram of the moveable block of expression third embodiment of the invention, and the parts identical with first embodiment are given identical symbol, and the repetitive description thereof will be omitted.

By in the part that keeps permanent magnet 21, increasing the volume of weight 44, can increase the weight of moveable block 40.

Though the manufacture method to the vibration generating arrangement of first embodiment is described, this manufacture method also is applicable to makes the vibration machine that has used as Figure 16 and moveable block shown in Figure 17.In the accompanying drawing below, the inscape of vibration generating arrangement has the substantially the same structure of key element with the vibration generating arrangement of above-mentioned first embodiment, shows square hole that these inscapes of combination for example snap fit required, that do not illustrate among Fig. 1 to 18 uses and notch etc.

The manufacture method of the vibration generating arrangement of present embodiment shown in Figure 19, be to supply with the method that metal belting 100 is made vibration generating arrangement 1 on one side continuously on one side continuously, it has following operation: the carrying material 100 that punch process is supplied with continuously, in rectangular aperture 103, the housing body expanding body that forms the housing body expanding body 102 of the above-mentioned housing body 2 that is kept by a pair of binding strap 100a that extends from this opening periphery forms operation 201; The peripheral part of crooked housing body expanding body 102 and form side wall portion and the housing body that forms housing body 2 forms operation 202; In the internal configurations moveable block 20 of housing body 2 and be fixedly supported upon moveable block arrangement step 203 on spring body 4a, the 4b; The stator block arrangement step 204 of stator block 10 and moveable block 20 alignment arrangements also being fixed in the inside of housing body 2; On the housing body 2 that disposes stator block 10 and moveable block 20, cover lid 3 and stationary housing main body 2 and lid 3, form housing, form operation 205 with this housing of finishing this vibration generating arrangement 1; And cut off to link strap 100a and, make vibration generating arrangement Yi Bian the manufacture method of this vibration generating arrangement is supplied with carrying material 100 on one side continuously from the cut-out operation 206 that carrying material 100 separates vibration generating arrangements 1.

Figure 20 is illustrated in the housing body expanding body and forms in the operation 201 by carrying material 100 is carried out the housing body expanding body 102 that punch process obtains.The position of having represented to be undertaken bending machining by the part shown in the double dot dash line by the shaping processing of subsequent processing.On side wall portion 2a, the 2b of housing body 2, formed and be used to carry out the square hole 9a that uses with the snap fit that is fixed of lid 3.

Figure 21 is the stereogram that the expression housing body forms the housing body 2 in the operation 202.As shown in figure 21, housing body 2 is carried out bending machining by the part shown in the double dot dash line of the housing body expanding body 102 among Figure 20, forms bottom 2c, long the limit 2a of wall portion, the minor face wall 2d of portion and is shaped to case shape shape.In addition, a pair of spring body is to form by a pair of

strap

4a, 4b among crooked Figure 20.

Figure 22 is the figure of moveable block arrangement step 203 that is used to be described in the internal configurations moveable block 20 of housing body 2 to Figure 26.As shown in figure 22, in moveable block arrangement step 203, at first, that

6a, 6a is chimeric respectively and be fixed among a pair of first through hole 2d, the 2d that is arranged on the housing body 2.In addition, the support plate 25 of fixed installation moveable block 20 in each leading section 4a4, the 4b4 of spring body 4a, the 4b of housing body 2.

Shown in Figure 23 (a), between the long side wall 2a of portion of housing body 2 and moveable block 20, predetermined gap a is set, shown in Figure 23 (b), on the long side wall 2a of portion of housing body 2 ora terminalis and above the moveable block 20 on the poor b of regulation is set, and between the bottom wall portion 2c of housing body 2 and moveable block 20, predetermined gap c is set.

Figure 24 (a) is the partial enlarged drawing of the part that surrounds of the round 24A by Figure 23, Figure 24 (b) is the enlarged drawing of the part that surrounded by 24B, and expression is fixedly mounted on state on two

spring body

4a, 4b leading section 4a4, the 4b4 separately with the support plate 25 of moveable block 20.The leading section 4a4 of spring body 4 is laser-welded in fixed part 50 on the support plate 25 of moveable block 20.For the leading section 4b4 of spring body 5, similarly carry out welding to another support plate 25.Fixed setting method is not limited to these, but laser weld is carried out operation owing to can not stablizing the fixed installation parts with applying external force, thereby is preferred.

Figure 27 to Figure 31 is the figure that is used to illustrate the stator block arrangement step 204 of configuration Figure 25 and stator block 20 shown in Figure 26.Stator block 10 is in the inside and moveable block 10 alignment arrangements of the housing body 2 that disposes pin 6a, 6b.In this stator block arrangement step 204,, and stator block 10 is set in the housing body by the location of stator block 10 is chimeric with

6a, 6b fixing on through

hole

12f, 12g and the housing body 2.

In addition, shown in Figure 31 (b) and Figure 31 (c), in the bight of housing body 2, the end of the minor face side wall portion 2d of housing body 2 is respectively to the direction bending of the long side wall 2a of portion, and is provided with gap d.Described FPC5 is configured in the inboard of housing body 2 along the long side wall 2a of portion, and extends out to the outside by gap d.

Figure 32 is to be used to describe the figure that forms operation 205 on housing body by the housing that covers and fixedly lid forms housing to Figure 35.Shown in Figure 32 (a), housing forms operation 205 and has in alignment arrangements on the housing body 2 of stator block 10 and moveable block 20 and covers lid 3, and will be arranged on snap fit on the lid 3 with hook 9b fastening to being arranged on snap fit on the housing body with fixing housing body 2 and lid 3 among the square hole 9a, form the housing 1A shown in Figure 32 (b).Figure 33 is the amplification sectional view of a part in the cross section of the 33-33 line of expression in Figure 32 (b), and expression will be arranged at the state of hook 9b fastening in the square hole 9a that is arranged on the lid on the housing body 3.

In addition, the second through hole 3d, the 3d that are arranged on the lid 3 is chimeric with the pin 6a, the 6b that are embedded in stator block 10 respectively, fix stator block 10 with this.Figure 34 is the amplification sectional view of a part in the cross section of the 34-34 line of expression in Figure 33 (b), and expression stator block 10 is fixed to state on the lid by pin 6a.

Figure 35 is the figure that expression lid expanding body forms operation, after Figure 35 (a) expression is carried out punch process to sheet metal, the lid before the bending machining, Figure 35 (b) is the local amplification sectional view of a part in the cross section of the 35B-35B line of expression in Figure 35 (a), and is the figure of expression snap fit with hook 9b.

At last, from the cut-out operation 206 that carrying material 100 separates housing 1A, finish vibration generating arrangement shown in Figure 36 1 through cutting off binding strap 100a.So, according to the manufacture method of the vibration generating arrangement of present embodiment, Yi Bian make vibration generating arrangement 1 Yi Bian can supply with carrying material 100 continuously.

Industrial applicibility

The present invention is not limited to the such slim portable equipment of portable telephone, also is applicable to vibration informing The vibration generating arrangement of the input validation of touch-screen type input unit etc.

Claims

1, a kind of vibration generating arrangement comprises:

Housing with flat base wall portion;

2, the vibration generating arrangement of putting down in writing according to claim 1, described housing is made of housing body with described bottom wall portion and the lid that covers on this housing body.

3, the vibration generating arrangement of putting down in writing according to claim 1, described at least one elastic supporting part comprise two elastic supporting parts at the two ends of supporting described moveable block.

4, the vibration generating arrangement of putting down in writing according to claim 3, described housing body has sidewall, and described two elastic supporting parts are that an end is fixed on the spring body on the sidewall of housing body.

5, the vibration generating arrangement of putting down in writing according to claim 4, described housing body is made of metal, and have sidewall, described spring body forms two elongated metallic plates that extend from the sidewall two ends of housing body and form respectively to the inside bend of this housing.

6, the vibration generating arrangement of putting down in writing according to claim 1, described moveable block have the support plate of the described moveable block of supporting, and this support plate is roughly parallel to the bottom wall portion ground of housing by this elastic supporting part supporting.

7, the vibration generating arrangement of putting down in writing according to claim 6, described moveable block have the tack coat that is configured between described permanent magnet and weight and the described support plate.

8, the vibration generating arrangement of putting down in writing according to claim 7, this moveable block have the bonding sheet that is configured between permanent magnet and weight and the described support plate, and described permanent magnet and weight are fixed on the described support plate by bonding sheet.

9, the vibration generating arrangement of putting down in writing according to claim 6, described housing is made of metal, and has sidewall, described at least one elastic supporting part has a pair of spring body, this a pair of spring body forms by the inboard that will extend the metallic plate that forms from the housing sidewall two ends and bend to this housing body

This a pair of spring is connected respectively to the described support plate two ends of described moveable block, and supports this moveable block.

10, the vibration generating arrangement of putting down in writing according to claim 5,

Described lid has sidewall,

Described spring body forms in the mode of extending from these sidewall two ends of this housing body, on the position of leaving from described two ends forward end direction, be fixedly mounted on the sidewall of described lid, the effective length of described spring body is the length from this hard-wired position to described front end.

11, the vibration generating arrangement of putting down in writing according to claim 1, described bar-shaped permanent magnet and described weight are configured in the mode of formation with a slice plate of the bottom wall portion almost parallel of housing.

12, according to any one vibration generating arrangement of putting down in writing in the claim 1 to 9,

Described yoke is set at bar-shaped, and parallel with the bottom wall portion of housing,

The described coil of described stator block has at first coiler part of reeling with respect to side's side of the middle body of described yoke with at second coiler part of reeling with respect to the opposite side of this middle body, this middle body and two end portions at this yoke form magnetic pole piece, thereby the magnetic pole piece in this two end portions produces identical magnetic pole mutually, and the magnetic pole piece in central authorities produces the magnetic pole opposite with the magnetic pole piece of this two end portions

Described permanent magnet comprises first and second permanent magnets that linearity connects, and this first and second permanent magnet is the opposed and almost parallel with first and second coiler parts respectively, and separately become mutually opposite magnetic pole with the opposed face of first and second coiler parts.

13, a kind of manufacture method of vibration generating arrangement is used to form vibration generating arrangement, and this device comprises: the housing with flat base wall portion; Have by yoke and be wound on the electromagnet that the coil on this yoke constitutes and this bottom wall portion that is fixed on described housing on stator block; Have permanent magnet and the moveable block that is installed in the weight on this permanent magnet; And with almost parallel ground in the face of the bottom wall portion of this housing and the mode roughly parallel with this stator block, this moveable block can be supported at least one elastic supporting part in this housing body quiveringly, it is characterized in that:

Have following operation:

14, the manufacture method of the vibration generating arrangement of putting down in writing according to claim 13, stamp out the developed plantform shape of described lid from sheet material, the peripheral part of crooked this developed plantform shape forms upper wall portions and side wall portion on every side thereof and constitutes described lid, and so that the mode that its sidewall contacts with the side wall portion of described housing body covers and fix described lid.

15, the manufacture method of the vibration generating arrangement of putting down in writing according to claim 13, form in the operation at described housing body expanding body, described housing body expanding body has from the extended a pair of strap in both ends as the outer peripheral edges portion of this housing body expanding body of a described side wall portion of housing body, the bending to the inside of described a pair of strap is formed a pair of elastic supporting part

In described moveable block arrangement step, the leading section of described a pair of elastic supporting part is fixed on the both ends of described moveable block respectively, thereby supports this moveable block.

16, according to the manufacture method of any one vibration generating arrangement of putting down in writing in the claim 13 to 15, form in the operation at the described first housing expanding body, on part, be formed for locating first through hole of described stator block as the described bottom wall portion of housing body; Form in the operation in described housing body, will sell chimeric respectively and be fixed in this through hole; In described stator block arrangement step, described pin is entrenched in the location that is arranged on the described stator block respectively uses in the through hole, and this stator block location is configured in the bottom wall portion of described housing body; Form in the operation at this housing, this pin is chimeric with the 2nd through hole of the location usefulness that is arranged on the described stator block on the described lid respectively, described stator block is fixed between described housing body and the described lid.

17, according to the manufacture method of any one vibration generating arrangement of putting down in writing in the claim 13 to 15, form in the operation, on the part of the described side wall portion that becomes described housing body, form a plurality of hasps holding section at described housing body expanding body; Form in the operation at described housing, this hasp holding section is engaged with hasp holding section on the side wall portion that is formed at described lid, and described housing body and described lid are fixed.

18, according to the manufacture method of any one vibration generating arrangement of putting down in writing in the claim 13 to 15, weight, integral body that described moveable block plane earth on a support plate disposes permanent magnet, magnetic and high specific gravity material mutually closely constitute tabular.

19, manufacture method according to any one vibration generating arrangement of putting down in writing in the claim 13 to 15, described yoke forms bar-shaped, this coil has first coiler part of reeling with respect to side's side of the middle body of described yoke, with at second coiler part of reeling with respect to the opposing party's side of this middle body, this middle body and two end portions at this yoke form magnetic pole piece, magnetic pole piece in described two end portions produces identical magnetic pole mutually, and the magnetic pole piece in central authorities produces the magnetic pole opposite with the magnetic pole piece of this two end portions

Described permanent magnet comprises first and second permanent magnets that linearity connects, and first and second permanent magnets are the opposed and almost parallel with first and second coiler parts respectively, and separately constitute mutually opposite magnetic pole with the opposed face of first and second coiler parts.

20, the manufacture method of the vibration generating arrangement of putting down in writing according to claim 19 forms described coil by the line of reeling, the first and second line portions that oppositely reel mutually, and winding number is roughly the same.

21, a kind of manufacture method of vibration generating arrangement, it is used to form vibration generating arrangement, and described vibration generating arrangement comprises: by the enclosure body with flat base wall portion and cover the flat shell that the lid on this enclosure body constitutes; Have by yoke and be wound on the electromagnet that the coil on this yoke constitutes, and be fixed on stator block on this bottom wall portion of described housing body; Have permanent magnet and the moveable block that is installed in the weight on this permanent magnet; And with almost parallel ground in the face of the bottom wall portion of this enclosure body and with the roughly parallel mode of this stator block, this moveable block can be supported at least one spring body in this enclosure body quiveringly, this at least one spring body extends from this enclosure body, it is characterized in that:

22, the manufacture method of the vibration generating arrangement of putting down in writing according to claim 21, described at least one spring body constitute a pair of spring body that extends from two ends of the sidewall of described housing body, in the described moveable block of preceding end bearing of described spring body.