CN209516887U - A kind of linear vibration motor with L-type spring leaf - Google Patents

Abstract

The utility model discloses a kind of linear vibration motors with L-type spring leaf, including upper casing and lower casing, the stator module of mover assembly and cooperation corresponding with mover assembly is provided in upper casing and lower casing, stator module is located at the lower section of mover assembly and is fixed on lower casing, mover assembly includes mass block, the both ends of mass block in X direction pass through L-type spring leaf and upper casing elastic connection respectively, the first escape groove matched with mass block is provided on L-type spring leaf, the both ends of mass block in X direction are respectively arranged with the second escape groove matched with L-type spring leaf.The L-type chip architecture of the spring of the utility model is simple, processes, is easy to assembly, elastic force is larger, production cost is reduced, the volume production ability and process rate of spring leaf, compact overall structure are improved, the volume of motor is reduced, to improve the vibrating effect and stability of motor.

Description

A kind of linear vibration motor with L-type spring leaf

Technical field

The utility model relates to motor technologies field more particularly to a kind of linear vibration motors with L-type spring leaf.

Background technique

With the fast development of electronic product, especially in the mobile terminal devices such as mobile phone, tablet computer, these electronic equipments Substantially have using vibration generating arrangement, for prevent the noise jamming from electronic device other people.Traditional vibration fills It sets using based on the rotor motor being eccentrically rotated, it is to realize mechanical oscillation by the rotation of off-centred dipole, since bias is shaken For son in rotary course, commutator and brush can generate mechanical friction and electric spark etc., will affect the revolving speed of off-centred dipole, into And device vibrating effect is influenced, therefore, vibration generating arrangement mostly uses the better linear motor of performance.

Linear motor, also referred to as linear electric machine, line motor, pusher motor etc., most common linear motor type are plates Formula, U-type groove formula and tubular type are a kind of technologies for converting electrical energy into linear motion mechanical energy, pass through the mutual expelling force of magnet So that moving element is suspended, while the moving element is directly driven by magnetic force, without it is still necessary to via such as such as rotating motor The transmission mechanisms such as gear set are driven, and therefore, the moving element that linear motor can enable it be driven carries out high acceleration, deceleration It moves back and forth, by the characteristic, linear motor can be applied in different manufacture processing technique fields, and by as driving Power source or as provide positioning technology contents.In addition, as semiconductor, electronics, photoelectricity, Medical Devices and automation are controlled The fast development and keen competition of the industry such as system, the requirement of each field movenent performance linear for motor also increasingly increase, it is expected that Motor has high speed, low noise and high position precision etc., therefore is used in both linear motor under many applications to replace The mechanical motion mode such as traditional servo motor.

But existing some linear motors, elastic component therein is certain due to haveing the defects that in design, to lead The problems such as elastic force is insufficient, processing is inconvenient, cost of manufacture is high, stability is poor is caused, and then influences the vibrating effect and stability of motor.

Utility model content

The utility model above-mentioned existing linear motor there are aiming at the problem that, propose a kind of with the linear of L-type spring leaf Vibrating motor.

In order to solve the above-mentioned technical problem, the utility model proposes following technical solutions:

A kind of linear vibration motor with L-type spring leaf, including upper casing and lower casing are set in upper casing and lower casing It is equipped with the stator module of mover assembly and cooperation corresponding with mover assembly, stator module is located at the lower section of mover assembly and fixation On lower casing, mover assembly includes mass block, and the both ends of mass block in X direction pass through L-type spring leaf and upper casing bullet respectively Property connection, towards mass block, one side of L-type spring leaf is connect with upper casing for the inside of L-type spring leaf, L-type spring leaf it is another Side is connect with mass block, is provided with the first escape groove matched with mass block on L-type spring leaf, mass block in X direction two End is respectively arranged with the second escape groove matched with L-type spring leaf.

The beneficial effects of the utility model are: stator module and mover assembly cooperate, make mover assembly by certain Active force, mass block vibrated in X direction by matching with two L-type spring leafs, and L-type chip architecture of the spring is simple, adds Work, easy to assembly, coefficient of elasticity is stablized, and elastic force is larger, can guarantee the more stable vibration of mass block, reduce and be produced into This, improves the volume production ability and process rate of spring leaf, and by the first escape groove convenient for the frequency of control spring leaf, matter Gauge block is matched with the first escape groove, and L-type spring leaf is matched with the second escape groove, and such compact overall structure reduces horse The volume reached, to improve the vibrating effect and stability of motor.

In some embodiments, several first permanent magnets are provided on mass block, stator module includes several with first The first coil of the corresponding cooperation of permanent magnet, first coil are connected to by flexible circuit board with external circuit, and flexible circuit board is solid It is scheduled on lower casing.

In some embodiments, the first groove body for disposing the first permanent magnet is provided on mass block.

In some embodiments, the bottom of mass block is provided with the third escape groove matched with first coil, third Escape groove is connected to the first groove body.

In some embodiments, L-type spring leaf is provided with the first connecting portion matched with upper casing, L-type on one side The another side of spring leaf is provided with third groove body along Y-direction, and third groove body is connected to form double-layer structure with the first escape groove, and first Escape groove between double-layer structure and first connecting portion, the upper layer of double-layer structure close to one end of the first escape groove be provided with The second connecting portion that mass block matches, the lower layer of double-layer structure are corresponding with the second escape groove.

In some embodiments, notch corresponding with double-layer structure is provided on mass block, double-layer structure is far from first One end of escape groove is bent towards the direction of notch.

In some embodiments, the buffer stopper matched with the lower layer of double-layer structure is provided in the second escape groove.

In some embodiments, the both ends in upper casing in X direction are respectively arranged with the limit matched with mass block Block, mass block are positioned between the two limiting blocks.

In some embodiments, L-type spring leaf is concordant with the height of mass block, and limited block is opposite with the first escape groove It answers.

In some embodiments, limited block is in several fonts.

It is all to be not specifically noted in addition, in technical solutions of the utility model, it can be by using normal in this field Rule means realize the technical program.

Detailed description of the invention

Fig. 1 is a kind of stereogram exploded view of the linear vibration motor with L-type spring leaf of the utility model.

Fig. 2 is a kind of first cross-sectional view of the linear vibration motor with L-type spring leaf of the utility model.

Fig. 3 is a kind of second cross-sectional view of the linear vibration motor with L-type spring leaf of the utility model.

Fig. 4 is that a kind of linear vibration motor with L-type spring leaf of the utility model removes the structural representation after upper casing Figure.

Fig. 5 is the structural schematic diagram of the utility model mass block.

Fig. 6 is the structural schematic diagram of the utility model L-type spring leaf.

Numbering in the drawing explanation, upper casing 1, lower casing 2, mover assembly 3, mass block 31, the second escape groove 311, first Groove body 312, third escape groove 313, notch 314, the first permanent magnet 32, stator module 4, first coil 41, flexible circuit board 42, L-type spring leaf 5, the first escape groove 51, first connecting portion 52, third groove body 53, double-layer structure 54, second connecting portion 541, buffering Block 6, limited block 7.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model.Furthermore it should be noted that term " lower section ", " one end ", " both ends ", " bottom The orientation or positional relationship of the instructions such as portion ", "inner", "outside", "horizontal", "vertical" is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the element of indication or suggestion meaning must have spy Fixed orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention, term " the One ", " second " etc. is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

Embodiment:

A kind of linear vibration motor with L-type spring leaf, as shown in figs. 1 to 6, including upper casing 1 and lower casing 2, lead to Normal upper casing 1 and lower casing 2 are welded to connect, and mover assembly 3 and opposite with mover assembly 3 is provided in upper casing 1 and lower casing 2 The stator module 4 that should cooperate, stator module 4 are located at the lower section of mover assembly 3 and are fixed on lower casing 2.Mover assembly 3 includes Mass block 31, mass block 31 are also referred to as balance weight, vibrating mass, clump weight etc., and the both ends of mass block 31 in X direction pass through L-type respectively Spring leaf 5 and 1 elastic connection of upper casing, the inside of L-type spring leaf 5 is towards mass block 31, i.e. the right angle mouth court of L-type spring leaf 5 To mass block 31, one side of L-type spring leaf 5 is connect with upper casing 1, and the another side of L-type spring leaf 5 is connect with mass block 31, is led to Frequently with the mode of welding, mass block 31 is suspended in upper casing 1 by two such L-type spring leaf 5, and mass block 31 is in X direction In vibration processes, mass block 31 pushes and pulls the L-type spring leaf 5 at its both ends, and L-type spring leaf 5 has buffer protection and confrontation The vibration of gauge block 31 provides the effect of restoring force, guarantees that motor steadily vibrates.It is provided on L-type spring leaf 5 and mass block 31 The first escape groove 51 matched, the both ends of mass block 31 in X direction are respectively arranged with second matched with L-type spring leaf 5 Escape groove 311, to reduce the volume of motor.

In the present invention, as shown in Figure 2 and Figure 3, X-direction, Y-direction and Z-direction are given, X-direction and Y-direction are The vertical and horizontal of horizontal direction, the direction of vibration of X-direction, that is, mover assembly 3, Z-direction, that is, vertical direction, text in "upper", "lower" etc. be all using Z-direction as benchmark for.

When the utility model is used, stator module 4 and mover assembly 3 cooperate, make mover assembly 3 by certain Active force, mass block 31 are vibrated in X direction by matching with two L-type spring leafs 5, and 5 structure of L-type spring leaf is simple, It processes, is easy to assembly, coefficient of elasticity is stablized, and elastic force is larger, can guarantee the more stable vibration of mass block 31, reduce production Cost improves the volume production ability and process rate of spring leaf, and by the first escape groove 51 of setting convenient for control spring leaf Frequency, mass block 31 matches with the first escape groove 51, and L-type spring leaf 5 is matched with the second escape groove 311, whole in this way It is compact-sized, the volume of motor is reduced, to improve the vibrating effect and stability of motor.

Further, as shown in figs. 2 to 4, several first permanent magnets 32 are provided on mass block 31, stator module 4 includes The first coil 41 of several cooperations corresponding with the first permanent magnet 32, first coil 41 pass through flexible circuit board 42 and external circuit Connection, flexible circuit board 42 are fixed on lower casing 2, and usual flexible circuit board 42 is adhesive on lower casing 2, first coil 41 Lead and flexible circuit board 42 are welded to connect.When in use, external circuit is the power supply of first coil 41 by flexible circuit board 42, First coil 41 after energization in the magnetic field that the first permanent magnet 32 generates by Ampere force, since first coil 41 is fixed not It is dynamic, so the first permanent magnet 32 so that mover assembly 3 be made to be vibrated in X direction, and is passed through by corresponding reaction force The current waveform for adjusting first coil 41 can change the frequency and amplitude of the vibration of mover assembly 3, different so as to generate Vibration sense, vibration sense is abundant, realizes a variety of different touch feedbacks, convenient for being applied to the power source of smart machine touch feedback, improves The application range of motor.

In addition, it should be noted that, flexible circuit board 42 is Flexible Printed Circuit, abbreviation FPC, it is Using polyimides or polyester film to be a kind of with high reliability and excellent flexible printed circuit made of substrate Plate has the characteristics that Distribution density is high, light-weight, thickness is thin, bending is good；Permanent magnet refers to can protect for a long time under open-circuit condition The magnet of higher remanent magnetism, also referred to as hard magnetic body are stayed, such as the permanent magnet made of ferrite permanent-magnet materials or by magnet steel etc., preferably Magnet steel, magnet steel have the characteristics that high rigidity, coercivity value height, high temperature resistant, corrosion resistance are strong, and magnetic property is preferable, is satisfied After magnetization, remain to keep relatively strong and stable magnetism after removing external magnetic field in for a long time.

Further, as shown in Fig. 2, Fig. 5, the first groove body for disposing the first permanent magnet 32 is provided on mass block 31 312, the first permanent magnet 32 is usually adhesive on the first groove body 312 of mass block 31, easy to operate, and it is firm to connect, compact-sized, Stability is good.

Further, as shown in Fig. 2, Fig. 5, the bottom of mass block 31 is provided with the third matched with first coil 41 and keeps away Allow slot 313, third escape groove 313 is connected to the first groove body 312, in this way convenient for the first permanent magnet 32 is placed in the first groove body On 312, and mass block 31, in vibration processes in X direction, first coil 41 is always positioned in third escape groove 313, structure It is more compact, it is more stable, reliable.

Further, as shown in Fig. 2, Fig. 4~6, L-type spring leaf 5 is provided with first matched with upper casing 1 on one side The another side of interconnecting piece 52, L-type spring leaf 5 is provided with third groove body 53 along Y-direction, and third groove body 53 and the first escape groove 51 connect It is logical to form double-layer structure 54, the first escape groove 51 between double-layer structure 54 and first connecting portion 52, double-layer structure 54 it is upper Layer is provided with the second connecting portion 541 matched with mass block 31 close to one end of the first escape groove 51, under double-layer structure 54 Layer is corresponding with the second escape groove 311.Mass block 31 is in X direction in vibration processes, L-type spring leaf of the mass block 31 to its both ends 5 are pushed and pulled, and the double-layer structure 54 of L-type spring leaf 5 extends its elastic arm of force, are reduced and are answered in the case where same displacement Power further improves the elastic force and stability of L-type spring leaf 5, and overall structure is more compact, more stable, reliable.

Further, as shown in figures 4-6, notch 314 corresponding with double-layer structure 54 is provided on mass block 31, it is double-deck The one end of structure 54 far from the first escape groove 51 is bent towards the direction of notch 314, can reduce L-type bullet in vibration processes in this way The amplitude of fluctuation of reed 5 and the double-layer structure 54 for preventing mass block 31 from touching L-type spring leaf 5, and structure is more compact, improves The stability and safety of motor vibrations.

Further, as shown in Fig. 2, be provided in the second escape groove 311 matched with the lower layer of double-layer structure 54 it is slow Block 6 is rushed, buffer stopper 6 is usually adhesive in the second escape groove 311, and mass block 31 passes through buffering in vibration processes in X direction Block 6 can prevent mass block 31 from directly touching with the lower layer of double-layer structure 54, to play the role of buffer protection, more pacify Entirely, reliably.In addition, the material of buffer stopper 6 is one of rubber, polyurethane or foam, rubber have elasticity is good, intensity is high, The advantages that cheap, polyurethane flexibility with higher, resilience, mechanical strength and oxidation stability and excellent resistance to The advantages that oiliness, foam have it is elastic, light-weight, quickly pressure-sensitive fixation, it is easy to use, be bent freely, volume is ultra-thin, performance can By the advantages that.

Further, as shown in Figure 2, Figure 4 shows, the both ends in upper casing 1 in X direction are respectively arranged with matches with mass block 31 The limited block 7 of conjunction, mass block 31 are located between two limited blocks 7, and usual limited block 7 is welded on the inside of upper casing 1.It is using In the process, when mass block 31 is vibrated in X direction, the peak swing of mass block 31 can be preferably limited by limited block 7, Prevent mass block 31 and L-type spring leaf 5 from touching the inner wall of upper casing 1, to keep the motor safer and more reliable.

Further, as shown in Figure 2, Figure 4 shows, L-type spring leaf 5 is concordant with the height of mass block 31, and limited block 7 is kept away with first It makes slot 51 corresponding, cooperates in this way convenient for limited block 7 and mass block 31, more fully utilize space, structure is more stepped up It gathers, limit effect is more preferable.

Further, as shown in Figure 2, Figure 4 shows, limited block 7 be in several fonts, limited block 7 can by metal plate bending, processing and At not only processing, easy to assembly in this way but also can reduce the weight of limited block 7.

Above-described is only some embodiments of the utility model, it should be appreciated that the common skill of this field For art personnel, without departing from the concept of the present invention, it can also be improved according to the above description or be handed over It changes, and all these improvement and exchange all should belong to the protection scope of the appended claims for the utility model.

Claims (10)

1. a kind of linear vibration motor with L-type spring leaf, which is characterized in that including upper casing (1) and lower casing (2), institute It states and is provided with mover assembly (3) and cooperation corresponding with the mover assembly (3) in upper casing (1) and the lower casing (2) Stator module (4), the stator module (4) is located at the lower section of the mover assembly (3) and is fixed on lower casing (2), described Mover assembly (3) includes mass block (31), and the both ends of the mass block (31) in X direction pass through L-type spring leaf (5) and institute respectively State upper casing (1) elastic connection, the inside of the L-type spring leaf (5) is towards the mass block (31), the L-type spring leaf (5) One side connect with the upper casing (1), the another side of the L-type spring leaf (5) is connect with the mass block (31), the L The first escape groove (51) matched with the mass block (31) is provided on type spring leaf (5), the mass block (31) is along the side X To both ends be respectively arranged with the second escape groove (311) matched with the L-type spring leaf (5).

2. a kind of linear vibration motor with L-type spring leaf according to claim 1, which is characterized in that the quality Several first permanent magnets (32) are provided on block (31), the stator module (4) includes several and first permanent magnet (32) The first coil (41) of corresponding cooperation, the first coil (41) are connected to by flexible circuit board (42) with external circuit, institute Flexible circuit board (42) is stated to be fixed on the lower casing (2).

3. a kind of linear vibration motor with L-type spring leaf according to claim 2, which is characterized in that the quality The first groove body (312) for disposing first permanent magnet (32) is provided on block (31).

4. a kind of linear vibration motor with L-type spring leaf according to claim 3, which is characterized in that the quality The bottom of block (31) is provided with the third escape groove (313) matched with the first coil (41), the third escape groove (313) it is connected to first groove body (312).

5. a kind of linear vibration motor with L-type spring leaf according to claim 1, which is characterized in that the L-type bullet Reed (5) is provided with the first connecting portion (52) matched with the upper casing (1) on one side, the L-type spring leaf (5) it is another One edge Y-direction is provided with third groove body (53), and it is double that the third groove body (53) is connected to formation with first escape groove (51) Layer structure (54), first escape groove (51) is between the double-layer structure (54) and the first connecting portion (52), institute The upper layer for stating double-layer structure (54) is provided with close to one end of first escape groove (51) to be matched with the mass block (31) Second connecting portion (541), the lower layer of the double-layer structure (54) is corresponding with the second escape groove (311).

6. a kind of linear vibration motor with L-type spring leaf according to claim 5, which is characterized in that the quality Notch (314) corresponding with the double-layer structure (54) is provided on block (31), the double-layer structure (54) is far from described first One end of escape groove (51) is bent towards the direction of the notch (314).

7. a kind of linear vibration motor with L-type spring leaf according to claim 5, which is characterized in that described second The buffer stopper (6) matched with the lower layer of the double-layer structure (54) is provided in escape groove (311).

8. according to claim 1 to a kind of linear vibration motor with L-type spring leaf described in any claim in 7, It is characterized in that, the both ends in the upper casing (1) in X direction are respectively arranged with the limited block matched with the mass block (31) (7), the mass block (31) is located between two limited blocks (7).

9. a kind of linear vibration motor with L-type spring leaf according to claim 8, which is characterized in that the L-type bullet Reed (5) is concordant with the height of the mass block (31), and the limited block (7) is corresponding with the first escape groove (51).

10. a kind of linear vibration motor with L-type spring leaf according to claim 9, which is characterized in that the limit Block (7) is in several fonts.