CN206302321U - A kind of linear vibration motor - Google Patents

Abstract

The utility model discloses a kind of linear vibration motor, including shell, vibration component, stator module and elastomeric element, and vibration component has the magnet in mass and symmetrical embedded mass；The first through hole between two pieces of magnets is opened up on mass；Stator module has coil and the increasing magnet assembly being arranged in coil in first through hole；The second gap is reserved and the two side walls of first through hole between respectively in the two ends of coil；The two ends of mass form the first gap between outer casing inner wall face respectively, and two elastomeric elements are separately positioned in two the first gaps.Increase magnet assembly to increase the magnetic field produced by coil to replace the field drives power of existing multiple coils and magnet generation, increase the amplitude of mass, required energy consumption reduction；Oscillation space when second gap moves along a straight line as mass, so that the length of shell need to be only the length and two length sums in the first gap of mass so that the whole volume of motor reduces.

Description

A kind of linear vibration motor

Technical field

The utility model is related to the technical field of motor, and in particular to a kind of linear vibration motor.

Background technology

With continuing to develop for the communication technology, portable electronic product turns into the necessity in people's life, for example, hand Machine, panel computer etc..In these portable electronic products, can install to be come to system feedback information by vibrating motor, The vibration mode that such as cell phone incoming call shows.Can with developing in the direction of electronic product frivolous direction when, it is necessary to installed in it The thickness of interior vibrating motor is thinner, structure smallerization, and this is that current each manufacturer is badly in need of solving to linear vibration motor Problem.

The structure of existing linear vibration motor, linearly shakes as Chinese patent literature CN205595994U discloses one kind mostly Dynamic motor, including housing, enclosure interior is horizontally disposed with an axle, and level is set in the mass on axle, the four of mass A magnet is respectively provided with individual angle, corresponding to four positions of magnet, four coils are set on inner walls face；And set Two springs on axle are located at, spring is located between inner walls face and mass.Four magnets on mass, along mass Length direction, positioned at two opposite polarities of magnet in left side, two opposite polarities of magnet of the adjacent left and right sides.Horse The vibration principle for reaching is the extraneous thrust for producing electromagnetic force to coil electricity, horizontal direction being applied to mass so that mass It is of reciprocating vibration in the horizontal direction on axle with magnet.

But, this linear vibration motor sets a magnet in housing, it is necessary to one coil of correspondence, along housing Length direction, coil is arranged separately in inner walls, the vibration gap of mass must also be reserved between coil and magnet, then shell The length of body is at least the length of mass, two length and two length sums of coil for vibrating gap, so will certainly Cause the length of housing big, the space shared by housing is big, causes the volume of whole motor big.The vibrating motor of this structure, By small volume, the volume of mass, magnet and coil can only correspondingly be reduced, but this can cause the electromagnetism that mass is received Power is small, and the amplitude of vibration is correspondingly reduced, it is difficult to meet the demand of people.Therefore, how mass Oscillation Amplitude is not being reduced On the premise of, by the volume of motor do it is smaller be current urgent problem.

Utility model content

Therefore, the technical problems to be solved in the utility model is to overcome linear vibration motor of the prior art to be difficult to completely Enough while Oscillation Amplitude is not reduced, the problem that motor volume reduces.

Therefore, the utility model provides a kind of linear vibration motor, including

Shell, with installation cavity；

Vibration component, is vacantly arranged in the installation cavity body, with mass and is symmetrically embedded in the mass At least two pieces magnets；The first through hole between two pieces of magnets is opened up on the mass；

Stator module, set on the housing, with the first through hole and with the first through hole from Coil and the increasing magnet assembly in being arranged in the coil；

Along the length direction of the mass, the two ends of the coil are respectively between the two side walls of the first through hole Reserved second gap, the two ends of the mass form the first gap between the internal face of the shell respectively；

At least two elastomeric elements, are separately positioned in two first gaps, under the cooperation with the stator module, To drive the mass to do linear reciprocating motion along its length.

Preferably, above-mentioned linear vibration motor, the maximum of the width not less than the elastomeric element in second gap Deflection；And/or

Along the length direction of the mass, the polarity of two pieces of relative described opposed facing one end of magnet is identical；With/ Or

The increasing magnet assembly is iron core.

Preferably, above-mentioned linear vibration motor, the elastomeric element includes first be resisted against on the mass Point, the Part II on the outer casing inner wall face is resisted against, and the Part I is fixedly connected with the Part II Changeover portion；

Under external force, the Part I and the changeover portion can compress and be set in towards the Part II On the Part II or compress and be embedded in the Part II；After external force revocation, the Part I and changeover portion Can be stretched out from the Part II and drive the mass to be directed away from the Part II direction and moved.

It is further preferred that above-mentioned linear vibration motor, the elastomeric element is turriform spring；

Used as the Part II, its tower bottom is the Part I, the shell to the top of tower of the turriform spring Internal face on form projection, the Part II of the turriform spring is set in the projection, Part I against On the end face of the mass；Or

Used as the Part I, its tower bottom is the Part II, the shell to the top of tower of the turriform spring Internal face on form two vertical spacing projections, the Part II of the turriform spring is located at two limit convexes Between rising, the Part I is resisted against on the end face of the mass.

Preferably, above-mentioned linear vibration motor, opens up towards institute in mass both ends of the surface along its length State the second through hole that first through hole direction extends and connected with the first through hole；The magnet is suitable to embedded be arranged on described the In two through holes.

Preferably, above-mentioned linear vibration motor, also including for guiding the mass to do straight line along its length The guide frame of motion；

The guide frame and/or the elastomeric element are hanging in the installation cavity body by the mass.

It is further preferred that above-mentioned linear vibration motor, the guide frame is the length direction along the mass Level is located at least two guides on the mass, and it is relative that the two ends of the guide are separately positioned on the shell Two side walls on, and the first through hole and the magnet be respectively positioned in the space between guide described at least two.

It is further preferred that above-mentioned linear vibration motor, opens in mass two side walls along its length If horizontal-extending chute, the guide is suitable to be embedded in the chute；

The elastomeric element be located at guide, the end face of mass and the shell described at least two internal face it Between in the space that surrounds.

Preferably, above-mentioned linear vibration motor, also including setting on the housing and in the first through hole Fixed mechanism, the increasing magnet assembly is embedded in the fixed mechanism, and the coil is set on the fixed mechanism.

It is further preferred that above-mentioned linear vibration motor, the fixed mechanism includes vertically being set in parallel in described Two pieces of fixed plates on shell, and be fixed on the supporter between two pieces of fixed plates, the fixed plate and the support The mounting hole along the mass length direction insertion is opened up on body；

The coil is set on the supporter, and the increasing magnet assembly is suitable to embedded being arranged in the mounting hole.

Preferably, above-mentioned linear vibration motor, the stator module also have be arranged on the cover top portion outer surface On wiring board, the first solder joint and the second solder joint on the wiring board are at least two；

The positive wire and negative wire of the coil to be passed through and be connected to the wiring board at the top of the shell One the first solder joint and second solder joint.

Preferably, above-mentioned linear vibration motor, the shell includes base and the upper shell on the base.

Technical solutions of the utility model, have the following advantages that：

1. the linear vibration motor that the utility model is provided, including shell, vibration component, stator module and at least two bullets Property part, shell have install cavity；Vibration component is vacantly arranged in the installation cavity body, with mass and symmetrical insertion At least two pieces magnets in the mass；The first through hole between two pieces of magnets is opened up on the mass；It is fixed Sub-component set on the housing, with the first through hole and with the first through hole from coil and setting Increasing magnet assembly in the coil；Along the length direction of the mass, the two ends of the coil are respectively with described first The second gap is reserved between the two side walls of through hole；The two ends of mass form first between the internal face of the shell respectively Gap；At least two elastomeric elements are separately positioned in two first gaps, under the cooperation with the stator module, to drive Move the mass and do linear reciprocating motion along its length.

The linear vibration motor of this structure, first through hole is opened up in the mass of vibration component, and coil is arranged on into this In first through hole, and increasing magnet assembly is set in coil come the multiple coils of setting in replacing existing motor and magnet, and can carry For bigger electromagnetic force, increase the Oscillation Amplitude of mass, relatively reducing energy consumption；Along the length direction of mass, coil with Oscillation space when the second gap between first through hole moves along a straight line as mass, so as to by existing linear vibration motor In vibration gap and the installation site of coil be arranged in mass, only preset between shell and mass and place elastic portion First gap of part, then the first gap is less than the gap that elastomeric element is placed in existing vibrating motor, so that the length of shell Degree need to be only the length and two length sums in the first gap of mass, meanwhile, the width of mass will not increase, shell Width will not also increase so that the whole volume of motor reduces, while improve the Oscillation Amplitude of motor, sensitivity, Yi Jiyan The service life of motor long.

2. the linear vibration motor that the utility model is provided, the width in second gap is not less than the elastomeric element Maximum deformation quantity so that mass can be vibrated on the width in the second gap with amplitude peak, and will not be connect with coil Touch, be further ensured that the normal work of motor.

3. the linear vibration motor that the utility model is provided, along the length direction of the mass, described in relative two pieces The polarity of the opposed facing one end of magnet is identical.Because coil is located between two relative magnets, two magnets are faced each other It is one pendant polar identical, show the opposite sex and repel each other, when two magnet active forces are given after coil electricity, enable to two magnets Impact direction is identical, and produced resistance is small in vibration processes, the work(required for correspondingly resetting and driving mass vibration Consumption is smaller.

4. the linear vibration motor that the utility model is provided, the elastomeric element includes be resisted against on the mass the A part, is resisted against the Part II on the outer casing inner wall face, and the Part I is fixed with the Part II The changeover portion of connection；Under external force, the Part I and the changeover portion can be towards Part II compressions simultaneously It is set on the Part II or compresses and is embedded in the Part II；External force revocation after, the Part I and Changeover portion can stretch out from the Part II and drive the mass to be directed away from the Part II direction and move.

After being extruded by mass, Part I and changeover portion compress and are set in Part II the elastomeric element of this structure It is upper or compress and be embedded in the Part II, do not increase the first gap it is wide when, elastomeric element has bigger deformation sky Between, store more energy；When mass is moved away from Part II, storage energy can be discharged to drive mass direction Away from the motion of Part II direction, further reduce the length of motor.

5. the linear vibration motor that the utility model is provided, also including for guiding the mass to do along its length The guide frame of linear motion；The guide frame and/or the elastomeric element are hanging in the installation cavity by the mass In vivo.The setting of guide frame enables that mass smoothly only moves along a straight line in installation cavity body.Meanwhile, when motor water During placing flat, guide frame also undertakes the function by mass vacantly in installation cavity body, and now elastomeric element need not undertake matter The gravity of gauge block, only need to undertake reset response；When motor is vertically placed, guide frame only undertakes guiding and makees With the reset that elastomeric element then not only undertakes mass also needs to undertake the hanging function in installation cavity body of mass.

6. the utility model provide linear vibration motor, the stator module also have be arranged on outside the cover top portion Wiring board on surface, the first solder joint and the second solder joint on the wiring board are at least two；The positive pole of the coil draws Line and negative wire pass through first solder joint and one second weldering that the wiring board is connected at the top of the shell Point.Multiple first solder joints and the second solder joint are set in the circuit board, prevent the solder joint from breaking down, also other solder joints carry out generation Replace, improve the qualification rate of product.

Brief description of the drawings

In order to illustrate more clearly of the utility model specific embodiment or technical scheme of the prior art, below will be right The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, describe below In accompanying drawing be some implementation methods of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the schematic perspective view of the linear vibration motor provided in the utility model embodiment 1；

Fig. 2 be the utility model embodiment 1 provided in linear vibration motor structural representation (remove wiring board and Upper shell)；

Fig. 3 is the linear vibration motor structural representation (removing wiring board) provided in the utility model embodiment 1；

Fig. 4 is the structural representation of base in the linear vibration motor provided in the utility model embodiment 1；

Fig. 5 is the structural representation of mass in the linear vibration motor provided in the utility model embodiment 1；

Fig. 6 is the structural representation of elastomeric element in the linear vibration motor provided in the utility model embodiment 1；

Fig. 7 is fixed mechanism and coil, iron core assembly in the linear vibration motor provided in the utility model embodiment 1 Structural representation afterwards；

Fig. 8 is the structural representation of fixed mechanism in the linear vibration motor provided in the utility model embodiment 1；

Fig. 9 is the structural representation of the linear vibration motor provided in the utility model embodiment 2；

Figure 10 is that the structural representation of the linear vibration motor provided in the utility model embodiment 2 (removes upper shell And wiring board)；

Figure 11 is that the structural representation of the linear vibration motor provided in the utility model embodiment 2 (removes circuit Plate)；

Figure 12 is the longitudinal profile structure schematic of the linear vibration motor provided in the utility model embodiment 2；

Figure 13 is the structural representation of base in the linear vibration motor provided in the utility model embodiment 2；

Figure 14 (is faced upward for the structural representation of wiring board in the linear vibration motor provided in the utility model embodiment 2 Apparent direction)；

Description of reference numerals：1- vibration components；11- masses；111- first through hole；The through holes of 112- second；113- chutes； 12- magnets；2- shells；21- bases；211- fourth holes；212- spacing preiections；22- upper shells；221- third through-holes；3- determines Sub-component；31- coils；32- iron cores；33- wiring boards；The solder joints of 331- first；The solder joints of 332- second；4- elastomeric elements；41- first Part；42- Part II；43- changeover portions；The gaps of 5- first；The gaps of 6- second；7- guides；8- fixed mechanisms；81- is fixed Plate；82- supporting parts；83- mounting holes；84- wire lead slots.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

It is term " " center ", " on ", D score, "left", "right", " perpendicular, it is necessary to explanation in description of the present utility model Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " are, based on orientation shown in the drawings or position relationship, to be only Described with simplified for the ease of description the utility model, must had rather than the device or element for indicating or implying meaning specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.

, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

As long as additionally, technical characteristic involved in the utility model different embodiments disclosed below is each other Not constituting conflict can just be combined with each other.

Embodiment 1

The present embodiment provides a kind of linear vibration motor, as depicted in figs. 1 and 2, including shell 2, vibration component 1, stator 3, two elastomeric elements 4, guide frame of component and fixed mechanism 8.Under the cooperation of two elastomeric elements 4 and stator module 3, energy Mass 11 is enough driven to do linear reciprocating motion along its length.

As shown in Figure 3 and Figure 4, shell 2 has installation cavity, including base 21 and the upper shell on base 21 22, wherein, base 21 includes base plate and the first vertical plate for being arranged on base plate two side and upwardly extending (such as in Fig. 1 Left and right sidewall)；Upper shell 22 includes that top board and the second vertical plate for being fixed on top board two side and extending downwardly (are for example schemed Front-rear side walls in 1), two the second vertical plates vertically insert the space between two relative one end of the first vertical plates respectively It is interior and be connected on base plate and form installation cavity.For example, being connected using snap.Meanwhile, one the 3rd is opened up on top board Through hole 221, as shown in figure 4, opening up two fourth holes 211 at position on base plate with respect to third through-hole 221.

As shown in Fig. 2 vibration component 1 is vacantly arranged in installation cavity body, with mass 11 and symmetrical embedded mass Two pieces of magnets 12 in 11；As shown in figure 5, opening up the first through hole 111 between two pieces of magnets 12 on mass 11；Quality The for extending towards the direction of first through hole 111 and connecting with first through hole 111 is opened up in the both ends of the surface along its length of block 11 Two through holes 112；Two pieces of magnets 12 are respectively embedded into and in second through hole 112, two pieces of magnets 12 opposed facing The polarity at end is identical.For example, the polarity of two opposed facing one end of magnet 12 is S poles or is N poles.Along mass 11 Length direction, reserves the first gap 5, for placing above-mentioned elastomeric element 4 between mass 11 and two the first vertical plates；Together When, the both ends of the surface of magnet 12 are concordant with the vertical surface of mass 11, and connect with the gap 5 of first through hole 111 and first respectively. In addition, opening up horizontal-extending chute 113 in the two side walls along its length of mass 11.

As shown in Figure 2 and Figure 6, elastomeric element 4 is turriform spring, is all formed on two internal faces of the first vertical plate convex Rise, used as Part II 42, its tower bottom is Part I 41 to the top of tower of turriform spring, is formed on the internal face of shell 2 Projection, the Part II 42 of turriform spring is set in projection, and Part I 41 is resisted against on the end face of mass 11；More preferably Ground, Part I 41 is resisted against on the end face of magnet 12.

As shown in Fig. 2 guide frame is the axis of guide being respectively embedded into two chutes 113, the two ends of the axis of guide are inserted respectively It is connected in the mounting hole opened up in two the first vertical plates.The setting of guide frame enables that mass is put down in installation cavity body Quietly only move along a straight line.Meanwhile, when motor horizontal positioned, guide frame also undertakes mass 11 is hanging in installation cavity Interior function, now elastomeric element 4 need not undertake the gravity of mass 11, only need to undertake reset response；When motor is along perpendicular When Nogata is to placing, guide frame only undertakes guide effect, and the reset that elastomeric element 4 then not only undertakes mass 11 also needs to undertake The hanging function in installation cavity body of mass.

As shown in Figure 1, Figure 2 and Figure 7, stator module 3 has the coil 31 being arranged on by fixed mechanism 8 on shell 2, line Circle 31 is located in the first through hole 111 of mass 11 and with first through hole 111 from, the iron core 32 in being arranged in coil 31, And it is fixed on the wiring board 33 on top board outer surface of cupular part.Wherein, magnet 12 and coil 31 are distributed in the length of mass 11 On degree direction, along the length direction of mass 11, the two ends of coil 31 are reserved between the two side walls of first through hole 111 respectively Second gap 6, the width in the second gap 6 is square along its length as mass 11 just equal to the maximum deformation quantity of turriform spring To the space of vibration.As shown in figure 1, the first solder joint 331 and the second solder joint 332 on wiring board 33 are four.

As shown in figure 8, fixed mechanism 8 includes the two pieces of fixed plates 81 that vertically be arranged in parallel, and it is fixed on two pieces of fixations Supporter 82 between plate 81；The mounting hole 83 along the length direction insertion of mass 11 is opened up in fixed plate 81 and supporter 82. Wherein, the top of fixed plate 81 is stretched into the third through-hole 221 of top board and concordant with the top surface of top board, and bottom is plugged on bottom In two fourth holes 211 opened up on plate；Coil 31 is set on supporter 82, and iron core 32 is suitable to embedded installed in mounting hole In 83.Fixed plate 81 opened up on the side wall of coil 31 two towards top board extend wire lead slots 84, coil 31 is just Pole lead and negative wire are respectively provided in a wire lead slot 84 and the third through-hole 221 through top board is connected to wiring board 33 First solder joint 331 and the second solder joint 332.Due to giving coil indirect current, the first solder joint 331 can be positive pole or negative pole, right Ying Di, the second solder joint 332 is negative pole or positive pole.Additionally, above-mentioned turriform spring, magnet 12 and coil 31 are respectively positioned on two leading To in the space between axle.

The linear vibration motor of above-mentioned implementation method, operationally, gives coil 31 logical positive electricity, coil by wiring board 33 31 produce the electromagnetism that driving magnet 12 drives mass 11 towards the direction motion of first vertical plate (such as the left side of shell 2) Power, mass 11 smoothly moves along a straight line on two axis of guides, and presses against the turriform bullet in first vertical plate Spring, in continuous extrusion process, one end of the close mass 11 of turriform spring is compressed and is set in the other end of turriform spring Go up and storage energy, now mass 11 is linearly moved to ultimate range；Give coil 31 logical reversely electricity, the driving magnet of coil 31 again 12 and mass 11 towards another the first vertical plate (such as the right side of shell 2) direction motion, mass 11 is cancelled to turriform bullet The extruding force of spring, the then turriform spring for being compressed releases energy, and the other end is stretched out in one end of the close mass 11 of turriform spring And drive mass 11 to be moved towards another first vertical plate, the other end of mass 11 extrudes another turriform spring again, When another turriform spring is compressed to does aximal deformation value, turriform spring before is just at free state；It is so heavy Go down again, it becomes possible to realize the reciprocating linear vibration of linear vibration motor.

The linear vibration motor of this structure, coil 31 is arranged in the first through hole 111 of mass 11, in coil 31 Set iron core 32 to replace setting multiple coils 31 and magnet 12 in existing motor, and bigger electromagnetic force can be provided, increase Mass 11 does the amplitude of linear oscillator along its length, power consumption needed for relatively reducing.Meanwhile, coil 31 and first through hole The second gap 6 between 111 is just the maximum deformation quantity of turriform spring, is also that mass 11 moves along a straight line along its length Ultimate range so that mass 11 can be vibrated on the width in the second gap 6 with amplitude peak, and will not be with coil 31 contacts.That is, the vibration gap in existing linear motor and the installation site of coil 31 are arranged in mass 11, The first gap 5 for placing turriform spring is only preset between shell 2 and mass 11, so that the length of shell 2 need to be only matter The length of gauge block 11 and two length sums in the first gap 5；Meanwhile, the width of mass 11 will not increase, then the width of shell 2 Degree will not also increase.

Secondly, the two ends of turriform spring are born against on the internal face of one end of mass 11 and shell, in turriform bullet , by the extrusion process of mass 11, one end of turriform spring is compressible and is arranged on an opposite end, is not increasing the first gap 5 for spring Width when, relative to existing elastomeric element, turriform spring has bigger deformation space, stores more energy, can The length of motor is further reduced, the Oscillation Amplitude and sensitivity of motor, and the service life for extending motor is improve.

Further, since coil 31 is located between two relative magnets 12, two pieces of poles of the opposed facing one end of magnet 12 Property it is identical, coil 31 energization after to two 12 active forces of magnet when, enable to two Impact directions of magnet 12 identical, vibration During produced resistance it is small, the power consumption required for correspondingly resetting and drive mass 11 to vibrate is smaller.

The solder joint 332 of multiple first solder joints 331 and second is set in assist side 33, prevents the solder joint from breaking down, also There are other solder joints to replace, improve the qualification rate of product；Meanwhile, shell 2 is arranged to pedestal and upper shell 22, it is easy to motor Assembling so that the simple structure of whole motor and compact, what can be done the volume of motor is more small, for example, the length of motor It is 8mm to spend, and width is 5mm and height is 3mm.

Used as interchangeable implementation method, above-mentioned base 21 can also be for one with open-topped housing, upper casing Body 22 is a cover plate；Or other structures, only need shell 2 to include a base 21 and the upper shell on base 21 22, and surround an installation cavity.Used as further deformation, shell 2 can also be other structures, need to be with installing cavity only Can.

As interchangeable implementation method, the first solder joint 331 and the second solder joint on the wiring board 33 in stator module 3 332 can also be two, three, five etc., as long as at least provided with two the first solder joints 331 and two the second solder joints 332 .

Used as the alternative embodiments of fixed mechanism 8, fixed mechanism 8 can also be to be arranged in first through hole 111 Other structures, for example, the T-shaped boss being vertically fixed in the lower surface of shell 2, coil 31 is set in the level of T-shaped boss In portion, the horizontal part is opened up along horizontal-extending endoporus, and iron core 32 is installed in this endoporus；Most preferably, in the horizontal part of boss A coil 31 is arranged on two ends respectively, two coils 31 share an iron core 32 to increase the magnetic field intensity of generation.Or, , only need to be set in coil 31 on fixed mechanism 8 by other fixed structures, and the insertion of iron core 32 is arranged in fixed mechanism 8, coil 31 Positive wire and negative wire the first solder joint 331 and the second weldering on wiring board 33 are connected to through the top of shell 2 Point 332.As further deformation, can also be without setting above-mentioned fixed mechanism 8, coil 31 is directly fixed on shell 2 On so that coil 31 is located in first through hole 111 and with first through hole 111 from during iron core 32 is arranged in coil 31.

As further alternative embodiments, between the two ends of coil 31 and the two side of first through hole 111 second The width in gap 6 can also be more than turriform spring maximum deformation quantity, for example, the width in the second gap 6 be turriform spring most 1.2 times, 1.1 times etc. of aximal deformation value, can according to the actual requirements design the width in the second gap 6.

Used as deformation, the above-mentioned axis of guide can be replaced by other guides 7, for example, slide bar or slide rail；Above-mentioned Chute 113 can be replaced by and be opened in the upper channel of mass 11；Need to only be worn along the length direction of mass 11, the level of guide 7 It is located on mass 11, the two ends of guide 7 are separately positioned on two relative side walls of shell 2.As deformation, lead It can also be three, four etc. to the number of part 7.

Used as further deformation, above-mentioned guide frame can also be substituted for other structures, be only needed for guiding mass 11 move along a straight line along its length, and when motor horizontal positioned, mass is hanging in installation cavity body.Example Such as, the slide rail on shell 2 is arranged on, the sliding block on slide rail is slidably arranged in, sliding block is fixed in the lower surface of mass 11.

Used as deformation, magnet 12 is arranged in mass 11 except the second through hole 112 by being opened up on mass 11, also Existing other modes can be used, magnet 12 is fixed in mass 11, for example, the second through hole 112 is replaced with into installation Groove, magnet 12 is embedded in mounting groove, and the opening of mounting groove is towards the side of first through hole 111 so that coil 31 and the phase of magnet 12 It is right.

Used as the deformation of turriform spring, above-mentioned elastomeric element 4 can also be turriform spring leaf；Or other elastic constructions, should Elastomeric element 4 includes the Part I 41 near mass 11, near the Part II 42 of shell 2 internal face, and by first The changeover portion 43 that part 41 is fixedly connected with Part II 42；Under external force, Part I 41 and changeover portion 43 being capable of courts Compress and be set on Part II 42 to Part II 42；After external force revocation, Part I 41 and changeover portion 43 can be from Stretch out and drive mass 11 to be directed away from the motion of the direction of Part II 42 on Part II 42.

Used as further deformation, above-mentioned elastomeric element 4 can also be existing linear pattern spring, or other are elastic Structure, the number of elastomeric element 4 can also be three, four, five etc..

Used as the deformation of iron core 32, iron core 32 can also be to be replaced by existing other magnet assemblies that increase, and need to only be arranged on Increase the magnetic field produced after coil 31 is powered in coil 31.

Used as deformation, the polarity setting direction positioned at the both sides of coil 31 and two pieces of relative magnets 12 is identical, magnet 12 This setup, when mass 11 does linear movement, can produce resistance so that the larger and required reset of required driving force Power is also big.Used as deformation, the number of magnet 12 can also be four, six, eight etc. even numbers, and even number magnet 12 is symmetrical It is arranged in mass 11.

Used as deformation, linear motor can also only include above-mentioned shell 2, vibration component 1, stator combination and at least two Elastomeric element 4.The coil 31 in magnet 12 and stator module 3 in vibration component 1 is distributed in the length direction of mass 11 On, the second gap 6 is reserved at the two ends of coil 31 between the two side walls of first through hole 111 respectively；At least two elastomeric elements 4 It is separately positioned in two the first gaps 5, it is past to drive mass 11 to do along its length under the cooperation with stator module 3 Linear motion.

Embodiment 2

The present embodiment provides a kind of linear vibration motor, as shown in Fig. 9-Figure 12, the linear oscillator with offer in embodiment 1 Motor is differed only in：

Under external force, the Part I 41 and changeover portion 43 of elastomeric element 4 can compress simultaneously towards Part II 42 In embedded Part II 42；After external force revocation, Part I 41 and changeover portion 43 can stretch out and drive from Part II 42 Kinoplaszm gauge block 11 is directed away from the motion of the direction of Part II 42.

As shown in Figure 10, Figure 12 and Figure 13, elastomeric element 4 is preferably also the turriform spring in turriform spring, with embodiment 1 Setting direction just conversely, the top of tower of turriform spring is used as Part I 41, its tower bottom is used as Part II 42, shell Internal face on form two vertical spacing projections 212, the Part II 42 of turriform spring be located at two spacing preiections 212 it Between and be resisted against on the internal face of shell 2, Part I 41 is resisted against on the end face of mass 11.Most preferably, Part I 41 It is resisted against on the end face of magnet 12.

In this implementation method, by the setting direction of turriform spring in the setting direction of turriform spring and embodiment 1 conversely, tower When shape spring is subject to the squeezing action of mass 11, the top of tower and changeover portion of the spring power that is squeezed are embedded in the interior of tower bottom Kong Zhong, when mass 11 vibrates, even if changeover portion and top of tower vertically have vibratory output, will not also collide the top of shell 2 Portion and bottom, and tower bottom, in whole vibration processes, the amplitude very little vertically vibrated will not also collide the top of shell And bottom, two spacing preiections 212 carry out spacing to the tower bottom of turriform spring in fore-and-aft direction so that the vibration of whole motor More steady, the noise of generation is smaller.

Used as deformation, above-mentioned elastomeric element 4 can also be existing other structures in addition to for turriform spring, only need With required compress variation and above-mentioned Part I 41, Part II 42 and changeover portion 43.

Further, as shown in Fig. 9, Figure 11 and Figure 14, the third through-hole 221 of upper shell 22 in shell in the present embodiment The structure of structure and wiring board 33 is different from embodiment 1, and specifically, the third through-hole 221 of upper shell is in long lumbar hole type, The top surface and bottom upper face of wiring board 33 are put and are welded with the first solder joint 331 and the second solder joint 332, the bottom of wiring board 33 , respectively positioned at two circular arc portions of long lumbar hole, the positive wire and negative pole of coil 32 draw for first solder joint 331 and the second solder joint 332 Line respectively with two circular arc portions of long lumbar hole just to the first solder joint 331 and the second solder joint 332 be connected.Now, fixed mechanism 8 In fixed plate 81 on can not open up wire lead slot 84.

Used as deformation, the shape of above-mentioned third through-hole 221 can be with other shapes, only need to be for the positive wire of coil 32 Passed through with negative wire, be connected with first solder joint 331 and the second solder joint 332 of wiring board 33.

The linear vibration motor provided in the present embodiment, and the linear vibration motor in embodiment 1, except above-mentioned two area Outside other point, the structure all same in other structures and embodiment 1.

Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or Among the protection domain that variation is created still in the utility model.

Claims (12)

1. a kind of linear vibration motor, it is characterised in that including

Shell (2), with installation cavity；

Vibration component (1), is vacantly arranged in the installation cavity body, with mass (11) and is symmetrically embedded in the mass (11) at least two pieces magnets (12) in；First opened up on the mass (11) between two pieces of magnets (12) is led to Hole (111)；

Stator module (3), is arranged on the shell (2), with the first through hole (111) and logical with described first Hole (111) from coil (31) and the increasing magnet assembly in being arranged in the coil (31)；

Along the length direction of the mass (11), the two ends of the coil (31) are respectively with the two of the first through hole (111) The second gap (6) are reserved between the wall of side, the two ends of the mass (11) shape between the internal face of the shell (2) respectively Into the first gap (5)；

At least two elastomeric elements (4), were separately positioned in two first gaps (5), with matching somebody with somebody for the stator module (3) Under conjunction, to drive the mass (11) to do linear reciprocating motion along its length.

2. linear vibration motor according to claim 1, it is characterised in that：The width of second gap (6) is not less than The maximum deformation quantity of the elastomeric element (4)；And/or

Along the length direction of the mass (11), two pieces of relative polarity phases of the opposed facing one end of the magnet (12) Together；And/or

The increasing magnet assembly is iron core (32).

3. linear vibration motor according to claim 1 and 2, it is characterised in that：The elastomeric element (4) is including being resisted against Part I (41) on the mass (11), is resisted against the Part II (42) on the shell (2) internal face, and will The changeover portion (43) that the Part I (41) is fixedly connected with the Part II (42)；

Under external force, the Part I (41) and the changeover portion (43) can compress towards the Part II (42) And be set on the Part II (42) or compress and be embedded in the Part II (42)；It is described after external force revocation Part I (41) and changeover portion (43) can stretch out from the Part II (42) and drive the mass (11) direction Away from the motion of the Part II (42) direction.

4. linear vibration motor according to claim 3, it is characterised in that：The elastomeric element (4) is turriform spring；

The top of tower of the turriform spring is used as the Part II (42), and its tower bottom is the Part I (41), described Projection is formed on the internal face of shell (2), the Part II (42) of the turriform spring is set in the projection, the A part of (41) are resisted against on the end face of the mass (11)；Or

The top of tower of the turriform spring is used as the Part I (41), and its tower bottom is the Part II (42), described Two vertical spacing projections (212), the Part II (42) position of the turriform spring are formed on the internal face of shell (2) Between two spacing preiections (212), the Part I (41) is resisted against on the end face of the mass (11).

5. linear vibration motor according to claim 1 and 2, it is characterised in that：The mass (11) is square along its length To both ends of the surface on open up extend towards the first through hole (111) direction and connect with the first through hole (111) second Through hole (112)；The magnet (12) is suitable to embedded being arranged in second through hole (112).

6. linear vibration motor according to claim 1 and 2, it is characterised in that：Also include for guiding the mass (11) guide frame for moving along a straight line is done along its length；

The guide frame and/or the elastomeric element (4) are hanging in the installation cavity body by the mass (11).

7. linear vibration motor according to claim 6, it is characterised in that：The guide frame is along the mass (11) length direction level is located at least two guides (7) on the mass (11), the two of the guide (7) End is separately positioned on two relative side walls of the shell (2), and the first through hole (111) and the magnet (12) are In space between guide described at least two (7).

8. linear vibration motor according to claim 7, it is characterised in that：The mass (11) is along its length Horizontal-extending chute (113) is opened up in two side walls, the guide (7) is suitable to be embedded in the chute (113)；

The elastomeric element (4) is positioned at guide described at least two (7), the end face of mass (11) and the shell (2) Internal face between in the space that surrounds.

9. linear vibration motor according to claim 1 and 2, it is characterised in that：Also include being arranged on the shell (2) And the fixed mechanism (8) in the first through hole (111), the increasing magnet assembly is embedded in the fixed mechanism (8), described Coil (31) is set on the fixed mechanism (8).

10. linear vibration motor according to claim 9, it is characterised in that：The fixed mechanism (8) is including vertically putting down Row is arranged on two pieces of fixed plates (81) on the shell (2), and is fixed on the support between two pieces of fixed plates (81) The installation along the mass (11) length direction insertion is opened up on body (82), the fixed plate (81) and the supporter (82) Hole (83)；

The coil (31) is set on the supporter (82), and the increasing magnet assembly is suitable to embedded installed in the mounting hole (83) in.

11. linear vibration motors according to claim 1 and 2, it is characterised in that：The stator module (3) also have set Put the wiring board (33) on the shell (2) outer surface of cupular part, the first solder joint (331) and second on the wiring board (33) Solder joint (332) is at least two；

The positive wire and negative wire of the coil (31) to be passed through and be connected to the wiring board at the top of the shell (2) (33) first solder joint (331) and second solder joint (332).

12. linear vibration motors according to claim 1 and 2, it is characterised in that：The shell (2) includes base (21) With the upper shell (22) on the base (21).