CN201994768U - Hollow cup cylindrical vibrating motor - Google Patents

Abstract

The utility model relates to the technical field of vibrating motors and particularly discloses a hollow cup cylindrical vibrating motor causing vibration required when a mobile phone, a PDA (Personal Digital Assistant), and other portable electronic devices are mounted. A rotor comprises a coil accommodated inside a stator, a first vibration source and a second vibration source which are oppositely mounted, isolated by a magnet, and penetrated by a central shaft, and inducting vibration when rotating eccentric with the central shaft, and a collector fixed on the second vibration source and penetrated by the central shaft; the rotor can rotate when being mounted in a rotary space in the casing; an electric brush is supported on an electric brush terminal and forms electric contact with a conductor collector of the collector; the electric brush terminal is pressed and fixed at one end at the opened upper part of the casing accommodating the central shaft for fixation and support; and a vibrator is mounted inside the casing instead of outside the casing. Therefore, the length of the casing and the coil mounted therein is prolonged, low electricity consumption is realized, abrasion between the collector and the electric brush is reduced, and the two vibration sources are combined in the coil and rotate, so as to accelerate response speed and generate high vibration force; and the vibrating motor has the advantages of low electricity consumption, high-sped response, long service life, large vibration force, etc.

Description

Drag cup column type vibrating motor

Technical field

The utility model relates to relevant vibrating motor technical field, carries the drag cup column type vibrating motor that causes vibration with electronic installation in case of necessity for for example being installed on mobile phone, PDA etc. more in detail.

Background technology

As everyone knows, for the incoming telephone signal means of informing mobile communication terminals such as mobile phone or PDA adopt vibrating motor, recently along with the rapid increase that is suitable for touch-screen mobile phone, the purposes of vibrating motor also causes variation, the touch vibrating function of sensory images button and feel the vibrating function of the sense of reality when playing games when clicking touch-screen as the user, the performance need of this multifunction vibration motor is different from existing vibrating motor, require rapid answer, high vibration force, the low consumption electric current, long-life high-performance vibrating motor.

Fig. 1 is existing drag cup column type vibrating motor STRUCTURE DECOMPOSITION oblique view.

Fig. 2 is existing drag cup column type vibrating motor sectional drawing.

As Fig. 1, shown in Figure 2, drag cup column type vibrating motor is by cylindric casing (14), bearing holder (housing, cover) cylindraceous (15) in casing (14) internal fixation, be set in the bearing (13a at bearing holder (housing, cover) two ends, 13b), magnet (16) in the installation of bearing holder (housing, cover) periphery, the coil of installing in magnet specified gap position (17), connect the rotating shaft (18) of bearing, the commutator segment (21) of the connecting coil (17) of the rotating shaft one end formation fixing commutator (25) of resin injection article (20), the retainer ring (19) that pressure is pressed into for commutator (25) is fixed in rotating shaft (18), sealing casing (14) one ends and the brush terminal (23) that brush combines and is connected electric wire (24) protrude on the rotating shaft of casing (14) ticker (10) composition are installed.

When producing the cylindrical vibrating motor of above structure of hollow cup, at first be bumped into bearing (13a at bearing holder (housing, cover) (15) two ends, 13b), at bearing holder (housing, cover) (15) external diameter the stator that magnet (16) cover upper casing (14) forms motor is installed then, force to be pressed into retainer ring (19) resin injection article (20) injection moulding commutator segment (21) formation commutator (25) for making rotor at rotating shaft (18) one ends, go up installation coil (17) back at commutator (25) and form rotor with electric welding connecting coil and commutator, when assembling stator and rotor the rotating shaft of rotor is inserted the bearing (13a that is installed on stator, 13b) internal diameter, the noise that takes place in order to reduce between motor when rotation retainer ring and the bearing mutual friction are mutually installed packing ring (12b) for well between it.

Rotor assembling finish the back for prevent rotor come off protrude in put on the rotating shaft of shell retainer plate (11) make rotor in certain guerrilla warfare apart from interior action.

Finish the end closed interior that brush terminal (23) after the assembling of stator and rotor is pressed into shell, on the outstanding rotating shaft of the other end, ticker is installed, finish the assembling of the cylindrical vibrating motor of drag cup.And brush fixing and the electric wire welding arranged on the brush terminal, the electric wire penetrating terminal comes out, provide power supply to make the coil rotation to electric wire according to the magnetic field (Left Hand Rule) that produces between magnet (16) and the coil (17), the commutator (25) of coil when rotation and coil (17) combination and the rotating shaft (18) that is connected with commutator are at bearing (13a, rotation 13b), the eccentric ticker (10) that combines with rotating shaft during the rotating shaft rotation also produces vibration along with rotation, but the eccentric ticker (10) of above existing drag cup column type vibrating motor protrudes in the outside, short vibrating motor be because of extending the length of casing (14), and the loop length that is installed on casing inside of extending is restricted.If the total length of coil is short, with the vibrating motor that can't be difficult to make high impedance on the cylindric coil of minor diameter enamelled wire formation around a large amount of enamelled wires.Therefore to make the vibrating motor that requires the low consumption electric current, the winding turns that should increase coil improves impedance, but existing cylindrical vibrating motor is restricted (though add the coil number of turns but dwindle the moment of torsion that vibrating motor can be weakened in line footpath to dwindle the enamelled wire increasing diameter, start the generation problem when eccentric ticker (10) is heavy, if opposite reduce ticker (10) though weight start easily but reduce vibratory output because of weight reduces), commutator (25) and brush (23) switching electric shock fecund are lit a fire and are spent (arc) when rotating because of reducing the current sinking motor, because of being evaporated, a large amount of metallic atoms that produce spark (arc) the two poles of the earth part just produce the life-span that motor is shortened in galvano-cautery, existing in addition cylindrical vibrating motor is installed magnet (16) because of bearing holder (housing, cover) (15) periphery, so it is limited to strengthen magnet (16), thereby it is limited to improve electromagnetic force, be difficult to improve response speed, should be taken into account when designing in addition and produce ticker (10) rotating part that mobile phone is installed the column type vibrating motor that privileged site was subjected to excessive external pressure the bad of the crooked or fracture of rotating shaft (18) of mostly occurring when an end that is installed on rotating shaft because of ticker (10) was subjected to external impact.

Along with the supply of the smart mobile phone of the big suitable touch-screen of power consumption enlarges, response speed when the current sinking of vibrating motor, life-span, click etc. has become key factor, yet the structure of existing vibrating motor can't be guaranteed to reduce current sinking and guarantee needed vibratory output, because of reducing current sinking, improve longevity, its structure improves electromagnetic force and can't obtain answer speed faster because of strengthening the magnet volume, and the limited and problem of these existing column type vibrating motors all is the problem that the utility model need overcome.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art, to provide a kind of under the prerequisite that does not strengthen its volume, can improve coil impedance and reduce current sinking, reaching to provide battery power consumption minimum environment-friendly type column type vibrating motor.

When the utility model is clicked so that the mobile communication terminal that is suitable for touch-screen to be provided, improve the click vibrations answer speed, make the user feel that the vibrating motor of the sensation raising response speed of button is a purpose.

The life-span of necessary vibrating motor was purpose when the utility model used vibrating function to improve increase.

The utility model to be providing when being designed to prevent to be subjected to external impact, privileged site be subjected to external pressure and motor axis of rotation crooked to produce the bad vibrating motor that can bear outside thump be purpose.

For achieving the above object, skill this programme of the present utility model is:

A kind of drag cup column type vibrating motor, comprise cylindric casing, it is characterized in that being provided with in the housing central shaft and comprise the magnet that is fixed on central shaft, in casing inside along central axis fixing can not rotational stator, be contained in the coil of stator interior, be fixed in the coil inboard by central shaft connect across the magnet two ends install relatively be eccentric in central shaft when rotated induced vibration first, second vibration source, and comprise several conductor commutator segments that are connected with coil, being fixed in that second vibration source connects the commutator of central shaft and be installed in the casing revolution space can rotor rotated, the brush of passing on electric power that contacts with the conductor commutator segment of commutator is fixed in the open top of casing with comprising supporting brush and inserting, one end fixed support of central shaft provides the casing of inner revolution space, the terminal of central shaft other end fixed support and brush portion.

Above-mentioned first, second vibration source respectively is eccentric high weighing body ticker, connects central shaft, is the bearing that pivot is provided with its rotation easily with the central shaft during for rotation, and involving vibrations and bearing combine also can connect the resin injection article of central shaft.

It is the cylindric of the following arc chord angle of benchmark 180 degree that the utility model is designed to first, second vibration source with the pivot.

In order to improve the adhesion strength of central shaft and magnet, strengthen adhesion area, can be provided with groove at the magnet adhesion part.

Brush terminal described in the utility model comprises the resin injection article of fixed brush, there is the end portion supports central axis direction of Collecting Center axle the axle support slot of deviation not occur on the resin injection article, and brush distortion and adjust the brush gap and form brush adjustment groove when assembling mutually with commutator for prevention.

It is poor that the lateral surface of first vibration source forms the section of blocking coil top one end in the utility model, and the part of first vibration source is inserted coil stationary, and remainder prolongs in coil one end.

The bearing of first, second vibration source of the utility model disposes relatively every magnet, resin injection article than first, second vibration source is given prominence to certain-length to the magnet direction, the bearing break-off was encased by the resin injection article when other end of each bearing ledge was subjected to external impact for prevention.

Commutator described in the utility model forms cylindric with the isogonism isolation configuration, be flexed into several conductor commutator segments of radial prolongation with an end of brush contact portion, the be combined as a whole heart therein of conductor commutator segment forms the resin injection article of through hole for connecting central shaft.

The utility model can form the guide groove that can insert several conductor commutator segments that support commutator on second vibration source.

For improving the adhesion of bearing and resin injection article, the utility model can be in the portion that concludes of bearing peripheral shape grooving shape.

Magnet in the utility model is positioned at the middle part of coil total length.

It is supported that the section difference that the utility model forms at the first vibration source lateral surface is hung on the coil end, it is supported to the poor casing inlet (lower end) that is blocked in of the section of the brush terminal lateral surface formation of central axis direction support commutator to be fixed on second vibration source, and first, second vibration source maintains a certain distance every magnet.

In order to improve vibration force to greatest extent, the eccentric weight center that is assembled into first vibration source and second vibration source is consistent.

The utility model is 3 mutually or 5 mutually cylindric with coil.

Utility model proposes to reduce the brand-new structural vibrations motor of coil current sinking, in order to reduce the current sinking of coil, the utility model utilization is than the length of existing motor extension coil, use winds out the more coil of multi-turn number with the enamelled wire in line-transect footpath than existing motor, this coil improves impedance because of lengthening, its result reduces the current flow of coil, magnet is formed stator in the middle of being installed on central shaft, two vibration sources are that the center combines at the medial surface up and down of coil with magnet, the vibration source of bottom combines with commutator, and commutator electrically contacts shape composition rotor with the brush formation that is fixed on the terminal; Brush with accept the electric current supply in the inner wire connecting of terminal, electric current is communicated to 3 mutually or the coil formed of 5 phase Delta tie lines by brush and commutator, the coil of accepting electric current produces magnetic field, magnetic field and the magnetic interaction that is fixed on the magnet of central shaft make the rotor integral body that combines with coil to certain direction rotation.

Example one, be designed to connect central part the cylindric coil (110) that has living space internal diameter mounting center axle (130) and be fixed on the magnet (140) of central shaft, two vibration sources (200,300) are with the eccentric ticker (220 of semicircle tubular slightly, 320), the bearing (230,330) of portion's installation within it is injection molded into incorporate slightly cylinder-like structure with the resin injection article and forms.

Two vibration sources (200,300) after being installed on central shaft (130) relatively, magnet (140) is disposed at the inner space of coil, therefore need not eccentric ticker be set separately in casing (100) outside, like this can be than the length of existing vibrating motor lengthening casing (100), also can extend and be installed on the length of its inner coil (110), the length of extension coil can many coilings number of turns and the impedance that improves coil just can embody the vibrating motor of low consumption electric current, the spark (arc) that switching contact when the reduction current sinking can reduce rotation between commutator (400) and the brush (430) is produced can reduce wear to greatest extent and improve the life-span of vibrating motor.

Existing at the outside column type vibrating motor that ticker is installed of casing, because of the dimensions length of ticker can only shorten casing length relatively, the length that coil also can only shorten coil is installed in the casing of this short size, thereby it is limited to improve the impedance drop low current loss, the utility model is in order to solve above-mentioned these problems, the rotor that is designed to the ticker of rotation is not installed in the casing outside and comprises ticker in the inner installation of casing, therefore the length of the coil that is installed in casing inside can extend, its result just can improve the resistance value of coil, embodies the low consumption electric current during use.

The structure that existing vibrating motor rotates with rotating shaft for the end setting-up eccentricity ticker at rotating shaft, therefore it is limited to improve response speed, rotating shaft of the present utility model is fixed, and two vibration sources are installed in the coil inside rotation, therefore can improve response speed, the low consumption electric current can reduce spark (arc) that motor when rotation produced because of the switching contact of brush and commutator to greatest extent in addition and the wearing and tearing of commutator and brush can improve the life-span, the utility model structural vibrations motor helps obtaining higher vibration force, with existing separate a ticker that is installed on rotating shaft one end rotation with casing different, the utility model is to form the top and the bottom vibration source with two tickers, be installed on the whole casing of casing internal vibration of lengthening and produce high vibratory output, existing column type vibrating motor must have a spring bearing (13a, 13b) the bearing holder (housing, cover) (15) of fixed magnet (16), magnet (16) and bearing holder (housing, cover) (15) combine in the mode of interpolation bearing holder (housing, cover), therefore the internal diameter of magnet (16) should be greater than the external diameter of bearing holder (housing, cover) (15), thereby the volume of minimizing magnet (16), the magnet (16) that reduces volume will weaken magnetic force, therefore the response speed of its vibrating motor is also slow, the unnecessary bearing holder (housing, cover) separately of the utility model, it is the stator structure that the adhesion fixed magnet forms on central shaft, so just can dwindle the volume that magnet (140) internal diameter increases magnet (140), thereby can utilize its bigger magnetic force to improve the response speed of motor.

Also have in order to prevent the shortcoming of existing vibrating motor, privileged site is subjected to the bad of external pressure rotating shaft (18) bending or fracture when both being subjected to external impact, the utility model is two tickers (220,320) be installed in the structure of both sides relatively every magnet (140), privileged site is subjected to the bad of center of impact axle (130) distortion in the time of can preventing to be subjected to external impact according to this structure.

Effect of the present utility model is to embody the low consumption electric current, response is fast, high life, high vibratory output, the column type vibrating motor that the utility model proposes is low according to existing vibratory motors consume electric current, therefore can embody environment-friendly products, meet current trend, and has response characteristic faster than existing vibrating motor, longer life-span and bear the strong characteristic of external impact force, the particularly existing column type vibrating motor that is designed to a ticker, the vibrating motor of utility model can produce bigger vibratory output because of magnet structure that two tickers are installed at interval wherein.

Description of drawings

Fig. 1 is the exploded perspective view of existing column type vibrating motor.

Fig. 2 is the inner section figure of existing column type vibrating motor.

The example column type vibrating motor exploded perspective view that Fig. 3 wishes for the utility model.

The example column type vibrating motor inner section figure that Fig. 4 wishes for the utility model.

Fig. 5 is the sectional drawing of marriage relation between the rotor top vibration source of the utility model vibrating motor and the coil.

Fig. 6 adjusts key diagram for the brush gap that the utility model is assembled in the brush terminal.

Fig. 7 is the assembling instruction figure that the commutator process is installed at the bottom vibration source of the present utility model.

Fig. 8 is the sectional drawing that magnet of the present utility model and central shaft combine.

Explanation to existing column type vibrating motor drawing major part symbol.

Mark among the figure: eccentric ticker 10, spacer 11, plastic washer 12a, plastic washer 12b, bearing 13a, 13b, casing 14, bearing holder (housing, cover) 15, magnet 16, coil 17, rotating shaft 18, retainer ring 19, resin 20, commutator segment 21, brush 22, terminal 23, electric wire 24, casing 100, coil 110, plastic washer 120, central shaft 130, magnet 140, top vibration source 200, bottom vibration source 300, commutator 400, resin injection article 210, top ticker 220, upper bearing 230, bottom ticker 320, lower bearing 330, LCP resin 410, commutator segment 420, brush 430, terminal 440, brush is adjusted groove 440a, electric wire 450.

Embodiment

With reference to the accompanying drawings to the desirable example in detail of the utility model:

Fig. 3 is for decomposing the inscape of showing the utility model column type vibrating motor, Fig. 4 is the column type vibrating motor inner section figure of the inscape of assembly drawing 3, Fig. 5 is applicable to the sectional drawing of marriage relation between the rotor top vibration source of the utility model vibrating motor and the coil for explanation, Fig. 6 is applicable to the brush terminal of the utility model vibrating motor and adjusts the brush terminal plane graph that is fixed on the terminal power up brush for explanation, Fig. 7 is the assemble method key diagram at bottom vibration source installation commutator that is applicable to the utility model vibrating motor, and Fig. 8 is the sectional drawing that magnet of the present utility model and central shaft combine.

General description vibrating motor of the present utility model at first, vibrating motor of the present utility model comprises rotor and stator, rotor is cylindric, comprise the coil (110) that is accommodated in stator interior, be bonded to the top and the bottom vibration source (200 that the inboard central shaft (130) that connects stator of coil (110) is upward installed at two ends relatively every the magnet (140) of stator, 300), comprise a plurality of conductor commutator segments that are connected with coil (110) and be bonded to the commutator (400) that bottom vibration source (300) is connected by central shaft (130), the revolution space that rotor is installed in the casing (100) can rotate.

Stator comprises central shaft (130) and is fixed on the magnet (140) of central shaft (130), central axis in the casing (100) is fixed it can't be rotated, one end fixed support of casing (100) bottom Collecting Center axle (130), top is sealed with brush terminal (440) assembling for open structure, giving inner the formation with the stator of casing (100) is the space of the rotor at center, coil (110) be 120 degree isogonisms 3 mutually or 5 phase Delta tie lines coileds of 72 degree isogonisms cylindric, coil (110) is connected with electric welding with commutator (400), commutator (400) is that 3 conductor commutator segments (420), the 120 degree isogonisms of being separated by install to form cylindric, one end of each conductor commutator segment (420) is flexed into 90 degree, 3 conductor commutator segments (420) of this state are fixed with resin injection article (410) injection moulding, resin injection article (410) with the low LCP of retractility for well, cylindrical conductor commutator segment (420) on the commutator of moulding exposes outside so that be connected with brush, conductor commutator segment (420) also exposes a part with radial prolongation, cylindrical conductor commutator segment (420) is inner to form certain thickness cylindric support zone to resin injection article (410) to give for fixing commutator segment, to be fixed on the bottom vibration source and to prolong in the shape on conductor commutator segment (420) top and form in order to insert, form the through hole that runs through central shaft (130) at resin injection article (410) central part, also should be 5 and be connected one to one and just can if coil (110) connecting line is the commutator segment (420) of 5 phase time commutators, before coil (110) is connected with commutator (400) at first the eccentric ticker (320) of semicircle tubular slightly and bearing (330) with resin injection article (310) the composition bottom vibration source that combines, be pressed into by force for bottom vibration source (300) to install that the coil (110) that this combination is inserted with behind the commutator (400) connecting line is inner fixes with sticker, the connecting line of each phase of coil (110) is connected with the commutator segment of electric welding with commutator (400), transmit electric power for coil (110) by the commutator (400) of such assembling, weld zinc-plated being treated to of connecting portion of coil (110) and commutator segment (420) for convenient, form the guide groove (300a) that inserts commutator segment so that assemble the commutator segment of commutator at bottom vibration source (300), the top end face that the welding position of the commutator segment (420) of insertion assembling guide groove (300a) should be lower than the bottom vibration source could weld easily with coil (110), (with reference to Fig. 7) in above and coil (110) that commutator (400) is connected, insert central shaft (130) and with the magnet (140) of its adhesion, magnet (140) can use two-stage cylindraceous Iso side property magnet, central shaft this moment (130) and the lower bearing that is fixed on bottom vibration source (300) (330) mutual friction mutually, connect the central space of commutator (400), because of bearing (330) centre of support axle (130), therefore mutual friction does not mutually take place with central shaft (130) and can rotate freely in commutator (400) inner diameter volume, central shaft (130) should use anaerobic adhesive when going up adhesion fixed magnet (140), strengthen intensity for strengthening adhesion area, stay groove (130a) for well at central shaft (130) external diameter, (with reference to Fig. 8) assembles top vibration source (200) for the inner insertion of coil (110) and magnet (140) back of central shaft (130) adhesion assembling, top vibration source (200) is the same with bottom vibration source (300) uses resin injection article (210) ticker (220) and bearing (230) composition that combines, form up-down vibration source (200,300) ticker (220,320) should be designed to that to be about 180 degree of benchmark form with interior angle is eccentric for well with central shaft (130), ticker (220,320) when rotation for fear of and be fixed on electromagnetic interference between the magnet (140) of central shaft (130) and use nonmagnetic metal or nonmetal weighing body for well, consider this factor should be used can provide high vibratory output with the weight of maximum high-gravity tungsten made ticker (220,320) for well, bearing (230,330) should use supplying lubricating oil separately, the bearing of interior soaking by lubricating oil that can guarantee the quality reliability during long-time rotation is for well, bearing (230,330) and the gap of central shaft (130) be 3 ~ 5 microns suitable, the gap is too little can to produce poor starting, the gap is too big on the contrary causes producing the life-span that the Iso sound is bad and shorten motor because of high rotating speed because of the rotating speed increase, for improving bearing (230,330) and resin injection article (210,310) adhesion stays groove (232) for well at bearing outside diameter.

The assembling mode of top vibration source (200) is for to be inserted in central shaft to the bearing of top vibration source (200) (230) internal diameter, so that friction (central shaft (130) has been in and magnet (140) secure bond is inserted the state of bottom vibration source (300) bearing (330) internal diameter), the eccentric weight center of top vibration source (200) must be consistent with the eccentric weight center of bottom vibration source (300) when it should be noted assembling this moment, because of top and the bottom vibration source (200,300) rotation simultaneously, the eccentric position of the eccentric position of top vibration source (200) and bottom vibration source (300) is accurate consistently could to improve vibration force when rotated to greatest extent, fixedly being formed on the rotor (rotor) that rotates freely outside central shaft (130) and the magnet (140) with the sticker adhesion at the inner top vibration source of installing (200) of coil (110), the top ticker (220) that top vibration source (200) uses is different from the ticker (320) that bottom vibration source (300) uses, form section poor (240) with the same outside at one end of d part of Fig. 5, the shape poor with position, the top section of hanging over of coil (110) is connected, both bottom ticker (320) inserted the inner shape of coil (110) and top ticker (220) is only to forming section poor (240) that partly inserting the inner remainder of coil (110) extends the coil outside fully, top ticker (220) just can be assembled into it in conjunction with highly consistent without other tools with coil (110) when internal diameter combines like this, and coil (110) need not be adjusted when rotor rotates separately to top ticker (220) section poor (a 240) barrier effect and magnet (140) between the guerrilla warfare distance, spacer needn't be established in addition, just bigger vibration force can be obtained because of the radius of turn increasing of ticker (220) in addition.

After as above making central shaft (130) is combined with casing (100).

Casing (100) is made with metal; there is combined hole (160) in bottom centre; inside is receiving space; top is open round shape; play the effect of accommodating rotor and protecting interior fittings and the using beam of magnetic line of force that prevents magnet (140) to leak in the inner space; the mode of assembling casing (100) fixedly makes it not become flexible for combined hole (160) back of the central shaft (130) that is fixed in rotor center portion being forced be pressed into casing (100) bottom with laser welding (170); rotor and casing (100) top installation brush terminal in assembling like this make brush (430) and commutator (400) CONTACT WITH FRICTION under certain pressure; the brush terminal comprises brush (430) and terminal (440); terminal (440) is the resin injection article; brush is that the electric conductor of a pair of good springiness is similar to the V-arrangement shape; represent as 6 (B); center (L) separated by a distance installs relatively and is fixed on the terminal with sticker on terminal; (440) brush (430) is connected with electric wire (450); accept electric power by electric wire (450) and be communicated to coil through commutator (400); (110) electric wire (450) is exposed to the outside with the specified slot that brush welding back connects terminal (440); in order to keep stable the contacting between brush (430) and the commutator (400); gap (L) between that a pair of brush (430) should be less than the external diameter of cylindric commutator (400); because of such magnitude relationship; can occur brush (430) when assembling terminal (440) and casing (100) and be pushed distortion by commutator (400) bad phenomenon takes place, for gap (L) generation when avoiding assembling that prevents this bad generation should take physical means to strengthen between the brush (430) on the terminal (440) bad.

For example Fig. 6 goes up at terminal (440) and forms the brush that a contrast brush (430) prolongs towards brush (430) direction and adjust groove (440a), adjusts groove (440a) insertion tool (460) toward brush when actual assembled terminal (440) and casing (100) and widens under the state in gap between a pair of brush (430) (being widened into the state of L1 with reference to Fig. 6 (C) gap) and assemble terminal (440) and casing (100) for well.

The assembling back is adjusted the groove from brush and is extracted tool (460) out, because of the intrinsic elastic return original state of brush (430) keep with commutator (440) on the stable friction of commutator segment (420), go up the central shaft support slot (440b) that also has centre of support axle (130) at terminal (440), if the central shaft of forcing to be pressed into casing (100) (130) is difficult to obtain concentricity accurately, the concentricity of central shaft (130) surpasses 0, during 08mm with central shaft (130) be the center rotor rotated with casing (100) mutually the mutual friction meeting produce bad characteristic, central shaft support slot (440b) on the terminal (440) can prevent this bad generation, both central shaft support slot (440b) can help to have broken away from central shaft (130) the recurrence center of concentricity, kept the plumbness of casing (100) and central shaft (130).

The column type vibrating motor of finishing by above-mentioned assembling drives with following principle, electric wire (450) is connected with external power source, power supply is given coil (110 supply of current by electric wire (450) through brush (430) and commutator (400), coil (110) is 3 phase or 5 phase structures, coil (110) one galvanizations of each phase, the coil of each phase (110) and generating an electromagnetic field between the fixing magnet (140) of portion in coil, generate an electromagnetic field and just make coil (110) rotation according to [Fleming's Left Hand Rule], the rotation principle of coil (110) is identical with the general rotation principle of 3 phases or 5 phase motors, the vibration source (200 of coil (110) is fixed in coil (110) one rotations, 300) also rotation together, Xuan Zhuan motor obtains bigger vibratory output because of two eccentric vibration sources (200300) rotate simultaneously like this, because of magnet (140) volume ratio existing big, so response speed is also faster, and the coil (110) of the high impedance of lengthening guarantees the high life when embodying the low consumption electric current of motor.

To sum up the embodiment that will reach according to the utility model is described in detail, the people who possesses common knowledge at the technology category under the utility model assert to belong to category of the present utility model when the scope that does not exceed the record of request item is out of shape the utility model in every way or is changed design implementation.

Column type vibrating motor of the present utility model is for can obtain the low consumption electric current, response faster, long-life, the structure of big vibratory output, need the industry of high-performance vibrating motor many-sidedly to utilize, particularly be suitable for requiring to touch the vibration touch-screen mobile phone or the electronic apparatus of response fast during click to reduce battery power consumption.

Claims (13)

1. drag cup column type vibrating motor, comprise cylindric casing, it is characterized in that being provided with in the housing central shaft and comprise the magnet that is fixed on central shaft, in casing inside along central axis fixing can not rotational stator, be contained in the coil of stator interior, be fixed in the coil inboard by central shaft connect across the magnet two ends install relatively be eccentric in central shaft when rotated induced vibration first, second vibration source, and comprise several conductor commutator segments that are connected with coil, being fixed in that second vibration source connects the commutator of central shaft and be installed in the casing revolution space can rotor rotated, the brush of passing on electric power that contacts with the conductor commutator segment of commutator is fixed in the open top of casing with comprising supporting brush and inserting, one end fixed support of central shaft provides the casing of inner revolution space, the terminal of central shaft other end fixed support and brush portion.

2. a kind of drag cup column type vibrating motor according to claim 1, it is characterized in that first, second ticker respectively is eccentric high weighing body ticker, connect central shaft, for when rotation is the bearing that pivot is provided with its rotation easily with the central shaft, involving vibrations and bearing combine also can connect the resin injection article of central shaft.

3. a kind of drag cup column type vibrating motor according to claim 2 is characterized in that it is the cylindric of the following arc chord angle of benchmark 180 degree that first, second ticker is designed to the pivot.

4. a kind of drag cup column type vibrating motor according to claim 1 is characterized in that the magnet adhesion part is provided with groove.

5. a kind of drag cup column type vibrating motor according to claim 1, it is characterized in that described brush terminal comprises the resin injection article of fixed brush, there is the end portion supports central axis direction of Collecting Center axle the axle support slot of deviation not occur on the resin injection article, and brush distortion and adjust the brush gap and form brush adjustment groove when assembling mutually with commutator for prevention.

6. a kind of drag cup column type vibrating motor according to claim 1, it is poor that the lateral surface that it is characterized in that first vibration source forms the section block coil top one end, the part insertion coil stationary of first vibration source, remainder prolongs in coil one end.

7. a kind of drag cup column type vibrating motor according to claim 1, the bearing that it is characterized in that vibration source disposes relatively every magnet, resin injection article than first, second vibration source is given prominence to certain-length to the magnet direction, the bearing break-off was encased by the resin injection article when other end of each bearing ledge was subjected to external impact for prevention.

8. a kind of drag cup column type vibrating motor according to claim 1, it is characterized in that described commutator forms cylindric with the isogonism isolation configuration, be flexed into several conductor commutator segments of radial prolongation with an end of brush contact portion, the be combined as a whole heart therein of conductor commutator segment forms the resin injection article of through hole for connecting central shaft.

9. a kind of drag cup column type vibrating motor according to claim 2 is characterized in that forming the guide groove that can insert several conductor commutator segments that support commutator on second vibration source.

10. a kind of drag cup column type vibrating motor according to claim 1 is characterized in that the portion that concludes of bearing peripheral shape grooving shape.

11. a kind of drag cup column type vibrating motor according to claim 1 is characterized in that magnet is positioned at the middle part of coil total length.

12. a kind of drag cup column type vibrating motor according to claim 1, it is supported to it is characterized in that section difference that the first vibration source lateral surface forms is hung on the coil end, it is supported to the poor casing inlet that is blocked in of the section of the brush terminal lateral surface formation of central axis direction support commutator to be fixed on second vibration source, and first, second vibration source maintains a certain distance every magnet.

13. a kind of drag cup column type vibrating motor according to claim 1 is characterized in that the eccentric weight center that is assembled into first vibration source and second vibration source is consistent in order to improve vibration force to greatest extent.

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