CN207625421U - A kind of solder joint reinforcement linear vibration motor - Google Patents

Abstract

The utility model discloses a kind of solder joint reinforcement linear vibration motors, including shell, stator structure and Structure of mover, the shell includes upper shell and lower housing, it is cavity in the upper shell, the Structure of mover setting is fixed on by elastic supporting member for supporting optical member in upper shell in upper shell internal vibration, one end of the elastic supporting member for supporting optical member is welded in the side of ticker, the other end of the elastic supporting member for supporting optical member is welded in upper shell madial wall, it is provided with the first solder joint stiffening plate on the elastic supporting member for supporting optical member and ticker junction, it is provided with the second solder joint stiffening plate on the elastic supporting member for supporting optical member and upper shell junction.The application with upper shell junction in support element and ticker and support element by being arranged solder joint stiffening plate, since the junction is solder joint, increase tie point weld strength by the way that solder joint stiffening plate is arranged, elastic component fulcrum force position when changing oscillator vibration, oscillator vibration process solder joint is avoided to fall off, elastic component welding position ruptures during avoiding oscillator vibration.

Description

A kind of solder joint reinforcement linear vibration motor

Technical field

The utility model is related to linear vibration motor field, more particularly to a kind of solder joint reinforcement linear vibration motor.

Background technology

Currently, portable consumer electronics product rapidly develops, consumer increasingly favors more lightening and has more The electronic product of tactile experience.Linear vibration motor is typically used as the executing agency of tactile experience, plays system vibration feedback Effect.The more lightening developing direction of electronic product determines that elastic supporting member for supporting optical member must also be improved to gauge flat direction. A kind of internal structure of solder joint reinforcement linear vibration motor is to be sequentially connected, then need production equipment by setting gradually into Row installation operation one by one, while the production process cannot be adjusted, the production process it is less efficient.Simultaneously when any production is set When standby damage, then corresponding production process will be stopped, then production stability is poor.

The CN107222080A of my earlier application discloses a kind of linear vibration motor, including shell, stator structure and Structure of mover, the stator structure include FPCB, coil, wherein FPCB, that is, flexible printed circuit board, and the Structure of mover includes Ticker, magnet steel and elastic supporting member for supporting optical member, the ticker are hovered over by elastic supporting member for supporting optical member in upper casing.This application is by stator knot Structure and Structure of mover are separately positioned in lower housing and upper shell, the set-up mode make its structure can by individually processing preservation, To realize modularized production, make production technology simplerization, it is easy to accomplish automated production operates, and improves production freely Degree.But it was found that spring support is typically to be set to ticker by laser welding in actual use and production process On, elastic component stress point is Laser Welding contact when ticker is swung, since Laser Welding contact is the position that stress is most concentrated, Become fulcrum when vibration, prolonged to vibrate, solder joint is easy to fall off, and elastic component bond pad locations are also easily broken, therefore how to be kept away Exempt from the problem of solder joint rupture is urgent need to resolve.

Utility model content

The technical issues of the utility model solves is to provide a kind of a kind of higher solder joint reinforcement line of elastic component Joint Strength Property vibrating motor.

Technical solution adopted by the utility model to solve its technical problems is：A kind of solder joint reinforcement linear vibration motor, Including shell, stator structure and Structure of mover, the shell includes upper shell and lower housing, and upper shell is connect with lower housing, institute It includes FPCB and coil to state stator structure, and the Structure of mover includes ticker, magnet steel and elastic supporting member for supporting optical member, and the lower housing is Tablet connect in one side with upper shell and is disposed with FPCB and coil, is cavity, the Structure of mover in the upper shell It is arranged in upper shell, there are movement clearance between the ticker and upper shell, the ticker is solid by elastic supporting member for supporting optical member It is scheduled in upper shell, the magnet steel is socketed on the inside of ticker, and the magnet steel is located at previous level face symmetry axis in vertical direction Extended surface both sides, the magnetism of the both sides magnet steel on the contrary, one end of the elastic supporting member for supporting optical member is welded in the side of ticker, The other end of the elastic supporting member for supporting optical member is welded in upper shell madial wall, and the elastic supporting member for supporting optical member is provided with on ticker junction It is provided with the second solder joint stiffening plate on first solder joint stiffening plate, the elastic supporting member for supporting optical member and upper shell junction.

The application by the way that solder joint stiffening plate is arranged with upper shell junction in support element and ticker and support element, due to The junction is solder joint, increases tie point weld strength by the way that solder joint stiffening plate is arranged, elastic component when changing ticker vibration Fulcrum force position avoids ticker vibration processes solder joint from falling off, and elastic component welding position in ticker vibration processes is avoided to rupture.

It is further：The elastic supporting member for supporting optical member is the spring leaf of arc, and the spring leaf quantity is two, the spring Piece is located at the both sides of ticker, and the spring leaf both ends are rectangle solder joint, are strip, the spring leaf in the middle part of spring leaf Two end pads are connect in the middle part of spring leaf by interconnecting piece, and the interconnecting piece in the middle part of spring leaf to both ends by being gradually widened.

It is further：It is provided with buffering spacer between the upper shell madial wall and elastic supporting member for supporting optical member.

It is further：The buffering spacer is foam block.

It is further：The FPCB coils adhesive surface is coated with nickel.

The utility model has the beneficial effects that：By being set with upper shell junction in support element and ticker and support element Solder joint stiffening plate is set, since the junction is solder joint, increases tie point weld strength by the way that solder joint stiffening plate is arranged, change is shaken Elastic component fulcrum force position when mover vibrates, avoids ticker vibration processes solder joint from falling off, avoids ticker vibration processes bullet Piece welding position ruptures；Spring leaf uses the shape being gradually widened by middle part to both ends so that the intensity higher of spring leaf；It is provided with Buffering spacer can avoid ticker shock upper shell and make a noise, and motor vibrations response can be promoted in FPCB coil adhesive surface nickel plating Time.

Description of the drawings

Fig. 1 is the explosive view of the application.

Fig. 2 is the overall diagram of the application.

Fig. 3 is the upward view of upper shell and Structure of mover.

Fig. 4 is the sectional view of the application.

Fig. 5 is the stereoscopic schematic diagram of spring leaf.

Fig. 6 is the front view of spring leaf.

In figure label for：Upper shell 1, lower housing 2, FPCB31, coil 32, ticker 41, magnet steel 42, spring leaf 43, One solder joint stiffening plate 431, the second solder joint stiffening plate 432, buffering spacer 5.

Specific implementation mode

The utility model is further illustrated with reference to the accompanying drawings and detailed description.

As shown in Figures 1 to 4, a kind of solder joint reinforcement linear vibration motor, including shell, stator structure and Structure of mover, The shell includes upper shell 1 and lower housing 2, and the upper shell 1 is cylinder of the one side opening with cavity, and lower housing 2 is Circular platy structure, while the opening of upper shell 1 matches with the area of lower housing 2.When upper shell 1 and lower housing 2 carry out When connection, the cavity in upper shell 1 forms accommodating chamber with lower housing 2, and the stator structure and Structure of mover are all located at upper shell 1 It is surrounded in the accommodating chamber formed with lower housing 2, and then protection operation is carried out to it.

The stator structure includes FPCB31 and coil 32, and lower housing 2, FPCB31 and coil 32 are bonded successively, FPCB31 One end stretch out and shell and be attached with external circuit.The pulse power outside FPCB31 connections at this time, which can It is provided by extraneous integrated circuit and power amplifier.To ensure that working effect, the power supply selected frequency are the Symmetrical arteries and veins of 180Hz Rush voltage.The other end connection coil 32 and then forming circuit of the FPCB31, coil 32 generate alternation with the variation of electric current simultaneously Magnetic field, then the N/S magnetic poles in the magnetic field are with 180Hz generations alternately variation.According to different vibration demands, the pulse power of the outside It can be changed.In addition, in order to further concentrate the magnetic line of force, the application also to be used to bond the one side plating of coil 32 in FPCB31 There is one layer of nickel, more concentrated due to being coated with the magnetic line of force that nickel layer makes, to enhance 32 magnetic induction intensity of coil.

The mover mechanism includes ticker 41, magnet steel 42 and elastic supporting member for supporting optical member.The ticker 41 be it is cylindrical and with it is upper There are gap between 1 madial wall of shell, which is enough to ensure that ticker 41 can be stablized and is vibrated.The ticker 41 passes through Elastic supporting member for supporting optical member is attached with upper shell 1, and the elastic supporting member for supporting optical member is the spring leaf 43 of two arcs, and the spring leaf 43 welds The both sides of ticker 41 are connected to, and two spring leaf 43 is with 180 ° of 41 center of ticker rotational symmetry.The spring leaf 43 Middle part is strip, and both ends are rectangle solder joint, and 43 middle part of the spring leaf is connect with both ends by interconnecting piece, the interconnecting piece by Middle part to both ends are gradually widened, this structure is advantageous in that ensure that solder joint between junction width, so as to effective The rigidity and intensity for promoting spring leaf 43 are more stablized when ticker 41 can be made to vibrate.The weldering of one end of spring leaf 43 Point is by the side of laser welding and ticker 41, and the solder joint of the other end is by laser welding in the madial wall of upper shell 1.

On this basis, the application is also provided with one layer of solder joint reinforcement on the opposite face of 43 solder joint welding surface of spring leaf Plate, particularly, one layer of second solder joint stiffening plate of fixed setting on the connection rectangle solder joint of spring leaf 43 and upper shell 1, One layer of second solder joint stiffening plate 432 of fixed installation on the rectangle pad surface that spring leaf 43 is connect with ticker 41, wherein First solder joint stiffening plate 431 and the second solder joint stiffening plate 432 are same plate body, frame altogether on two spring leafs 43 in the application If there are four solder joint stiffening plate, it can effectively increase tie point weld strength by the way that solder joint stiffening plate is added, change ticker 41 43 fulcrum force position of spring leaf when vibration so that stress point is become the side of solder joint stiffening plate from solder joint when ticker 41 vibrates Edge avoids 41 vibration processes solder joint of ticker from falling off, and 41 vibration processes shrapnel welding position of ticker is avoided to rupture.

Although the application can limit the position of ticker 41 by spring leaf 43, can avoid to a certain extent Ticker 41 collides in vibration processes with shell, reduces the generation of noise, but cannot completely ensure ticker 41 With shell collisionless, therefore, on the basis of the above, 1 madial wall of upper shell is additionally provided with buffering spacer 5, and the buffering spacer 5 is total There are two, described two buffering spacers 5 are adhered to 1 madial wall of upper shell and, cushion pad corresponding with 43 medium position of spring leaf Foam can be selected in piece 5, and by the way that buffering spacer 5 is arranged, ticker 41 hits buffering spacer 5 and transmits vibration wave, and amplification amplitude can have Effect ground prevents ticker 41 from hitting upper shell 1 and generates noise, to ensure that the application effect when in use and use the longevity Life.

There are two magnet steel placing groove, the interior magnet steel being socketed by two rectangles of magnet steel placing groove for setting on the ticker 41 42.Described two spring leafs 43 are corresponding with two magnet steel 42 respectively, while the magnet steel 42 is existed with the symmetry axis of 32 horizontal plane of coil The extended surface of vertical direction is symmetrical arranged for symmetry axis.Magnet steel 42 carries out the operation of magnetizing of opposite magnetic before being installed, I.e. a magnet steel 42 is the poles N, then another is the poles S.

The workflow of the application is, when coil 32 carries out the power-on servicing of alternating current, then changing according to energization direction The magnetic direction that type transformer coil 32 generates can also change.When coil 32 towards the end of ticker 41 be the poles N when, then the poles S magnetic Steel 42 is moved towards coil 32, and the poles N magnet steel 42 is directed away from the movement of coil 32, and ticker 41 then can be in the band of magnet steel 42 It shifts towards the direction of the poles N magnet steel under dynamic.As electric current is gradually reduced in coil 32, then ticker 41 is in spring leaf 43 It is resetted under elastic reaction.And when the electric current of negative direction gradually increases, coil 32 towards the end of ticker 41 be the poles S when, then poles S Magnet steel 42 is moved far from coil 32, and the poles N magnet steel 42 is moved towards coil 32, and the direction of ticker towards the poles S occurs Offset, thus as electric current changes, ticker 41 is deviated towards different directions to vibrate.In addition in order to avoid above-mentioned Ticker 41 causes to fall off in vibration since 43 solder joint stress of spring leaf is excessive, and can have by addition solder joint stiffening plate makes weldering The edge of point stiffening plate becomes stress point when ticker 41 vibrates, the intensity for increasing solder joint of effect.

The application by the way that solder joint stiffening plate is arranged with 1 junction of upper shell in support element and ticker 41 and support element, Since the junction is solder joint, increase tie point weld strength by the way that solder joint stiffening plate is arranged, when changing the vibration of ticker 41 Elastic component fulcrum force position avoids 41 vibration processes solder joint of ticker from falling off, and 41 vibration processes shrapnel of ticker is avoided to weld Position rupture；Spring leaf 43 is using the shape being gradually widened by middle part to both ends so that the intensity higher of spring leaf 43；It is provided with slow Rush gasket 5 can avoid ticker 41 hit shell 1 make a noise, can promote motor in the 32 adhesive surface nickel plating of coil of FPCB31 shakes The dynamic response time.

Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not limited to this Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap Containing being within the protection scope of the utility model.

Claims (5)

1. a kind of solder joint reinforcement linear vibration motor, including shell, stator structure and Structure of mover, the shell include upper shell (1) it is connect with lower housing (2) with lower housing (2), upper shell (1), the stator structure includes FPCB (31), coil (32), institute It includes ticker (41), magnet steel (42) and elastic supporting member for supporting optical member to state Structure of mover, and the lower housing (2) is tablet, lower housing (2) with FPCB (31) and coil (32) are disposed on upper shell (1) joint face, the Structure of mover setting is interior in upper shell (1), There are gaps, the ticker (41) to be fixed by elastic supporting member for supporting optical member between the ticker (41) and upper shell (1) madial wall In upper shell (1), the magnet steel (42) is socketed on the inside of ticker (41), and the magnet steel (42) is located at coil (32) horizontal plane For symmetry axis in the both sides of the extended surface of vertical direction, the magnetism of the both sides magnet steel (42) is opposite, it is characterised in that：The elasticity One end of support element is welded in the side of ticker (41), and the other end of the elastic supporting member for supporting optical member is welded on the inside of upper shell (1) It is provided with the first solder joint stiffening plate (431), the elastic supporting member for supporting optical member on wall, the elastic supporting member for supporting optical member and ticker (41) junction With the second solder joint stiffening plate (432) is provided on upper shell (1) junction.

2. a kind of solder joint reinforcement linear vibration motor as described in claim 1, it is characterised in that：The elastic supporting member for supporting optical member is arc The spring leaf (43) of shape, spring leaf (43) quantity are two, and the spring leaf (43) is located at the two of ticker (41) Side, spring leaf (43) both ends are rectangle solder joint, are strip, (43) two end pad of the spring leaf in the middle part of spring leaf (43) It is connect by interconnecting piece in the middle part of spring leaf (43), the interconnecting piece in the middle part of spring leaf (43) to both ends by being gradually widened.

3. a kind of solder joint reinforcement linear vibration motor as described in claim 1, it is characterised in that：On the inside of the upper shell (1) Buffering spacer (5) is provided between wall and elastic supporting member for supporting optical member.

4. a kind of solder joint reinforcement linear vibration motor as claimed in claim 3, it is characterised in that：The buffering spacer (5) is Foam block.

5. a kind of solder joint reinforcement linear vibration motor as described in claim 1, it is characterised in that：The FPCB (31) and coil (32) adhesive surface is coated with nickel.