CN206180810U - Linear vibrating motor - Google Patents

Abstract

The utility model provides a linear vibrating motor, include: the shell with accept the oscillator in the shell, the oscillator includes that quality piece and difference fixed connection follow the elastic support elements at length direction both ends at the quality piece, two elastic support elements all include two shell fragments, the one end fixed connection of two shell fragments of every elastic support elements, the other end of two shell fragments is affiliated elastic support elements's free end respectively, the same diagonal and quality piece fixed connection of quality piece top surface are followed respectively to two respective free ends of elastic support elements, two respective another free ends of elastic support elements respectively with the inner wall fixed connection of shell. Utilize the utility model provides a linear vibrating motor, fixed connection between the shell fragment can save the required space of shell fragment vibration, can effectually prevent the polarization to and, can also increase the toughness of shell fragment, the difficult fracture in vibration back.

Description

Linear vibration motor

Technical field

This utility model is related to motor technologies field, more specifically, is related to a kind of linear vibration motor.

Background technology

At present, the motor in existing electronic product, generally provides restoring force or support force for oscillator by shell fragment, thus may be used To find out, effect of the shell fragment played in motor is extremely important, almost determines performance and the life-span of motor, and common shell fragment exists It is easily broken off after the vibration of a large amount of number of times.

As electronic product does less and less, the space for providing vibration for shell fragment is more and more limited, therefore, how to improve shell fragment Toughness, be particularly important so as to improve shell fragment problem of easy fracture after vibration.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a kind of linear vibration motor, to solve after shell fragment vibration The problem of easy fracture.

The linear vibration motor that this utility model is provided, including：Shell and the oscillator for being contained in inside the shell, oscillator include matter Gauge block and the elastic supporting member for supporting optical member at mass two ends along its length is respectively fixedly connected with, each elastic supporting member for supporting optical member includes two panels Shell fragment, one end of two panels shell fragment are fixedly connected, and the other end of two panels shell fragment is the free end of affiliated elastic supporting member for supporting optical member, two bullets The property respective free end of support member is fixedly connected with mass along the same diagonal of mass top surface respectively, and two elastic Respective another free end of support member is fixedly connected with the inwall of shell respectively.

Additionally, it is preferred that structure be that the two panels shell fragment of each elastic supporting member for supporting optical member is being projected as " V " type formed by horizontal plane.

Furthermore it is preferred that structure be that the profile of the two panels shell fragment of each elastic supporting member for supporting optical member has breach respectively, and breach is right Title type breach or asymmetric breach.

Furthermore, preferred structure is that the height at the two panels shell fragment two ends of each elastic supporting member for supporting optical member is equal to or less than mass Height.

Additionally, it is preferred that structure be to be glued in the relative one side of the free end of the two panels shell fragment of each elastic supporting member for supporting optical member respectively Post block.

Furthermore it is preferred that structure be, any one in two blocks not with shell fragment paste one side be pasted with silica gel Pad.

Additionally, it is preferred that structure be that oscillator also includes Magnet and washer, installing hole, washer knot are offered in mass Close at the top of Magnet, the Magnet being combined together and washer are arranged in installing hole.

Furthermore it is preferred that structure be that linear vibration motor also includes stator, and stator includes coil and flexible print circuit Plate, coil and the pad solder of flexible printed circuit board, offer for receiving corresponding to the position of Magnet in the bottom of mass Hold the groove of coil, coil is contained in groove, and positioned at the bottom of Magnet.

Furthermore, preferred structure is that the bottom of shell is provided with shielding piece.

Compared with prior art, advantage of the present utility model is as follows：

1st, one end of the two panels shell fragment of each elastic supporting member for supporting optical member is fixedly connected, so as to save the vibration required for shell fragment Space.

2nd, the diagonal due to two elastic supporting member for supporting optical member along mass top surface connects, so as to effectively prevent polarization.

3rd, shell fragment can provide sufficiently large restoring force and support force for oscillator, and toughness is big, not easy fracture.

Description of the drawings

By reference to the explanation below in conjunction with accompanying drawing, and with being more fully understood to of the present utility model, this practicality is new Other purposes of type and result will be more apparent and should be readily appreciated that.In the accompanying drawings：

Fig. 1 is the overall structure diagram of the linear vibration motor according to this utility model embodiment；

Fig. 2 is the decomposition texture schematic diagram of the linear vibration motor according to this utility model embodiment；

Partial enlarged drawings of the Fig. 3 for Fig. 2；

Fig. 4 is the structural representation of " I " the type shell fragment according to this utility model embodiment；

Fig. 5 is the structural representation of " C " the type shell fragment according to this utility model embodiment；

Fig. 6 is to remove the signal that other structures are combined after upper casing according to the linear vibration motor of this utility model embodiment Figure.

Reference therein includes：Shell 1, upper casing 11, lower casing 12, mass 2, the first elastic supporting member for supporting optical member 3, the first bullet Piece 31, the second shell fragment 32, the second elastic supporting member for supporting optical member 4, the 3rd shell fragment 41, the 4th shell fragment 42, block 5, silicagel pad 6, Magnet 7, China Department 8, coil 9, flexible printed circuit board 10, shielding piece 11.

Identical label indicates similar or corresponding feature or function in all of the figs.

Specific embodiment

In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, explain Many details are stated.It may be evident, however, that these embodiments can also be realized in the case where not having these details. In other examples, for the ease of describing one or more embodiments, known structure and equipment are illustrated in block form an.

Fig. 1, Fig. 2 and Fig. 6 respectively illustrate the overall structure of the linear vibration motor according to this utility model embodiment, divide The other structures that solution structure and linear vibration motor are combined together after removing upper casing.

As shown in Figure 1, Figure 2 with shown in Fig. 6, this utility model provide linear vibration motor, including：Shell 1 and it is contained in outer Oscillator in shell, shell 1 include upper casing 11 and lower casing 12, and it (can also be plastics material that upper casing is preferably metal material with lower casing 12 Matter), both form a cavity at welding, and oscillator is contained in the cavity, and oscillator includes that the mass 2, first of cuboid is elastic Support member 3 and the second elastic supporting member for supporting optical member 4, the first elastic supporting member for supporting optical member 3 and the second elastic supporting member for supporting optical member 4 are separately positioned on 2 edge of mass The two ends of length direction, and be fixedly connected with mass 2 respectively.

With reference to Fig. 3, the first elastic supporting member for supporting optical member 3 includes the first shell fragment 31 and the second shell fragment 32, the two ends of the first shell fragment 31 and The two ends of the second shell fragment 32 have joint face, the joint face of 32 one end of joint face and the second shell fragment of 31 one end of the first shell fragment respectively The other end for being welded and fixed connection, the other end of the first shell fragment 31 and the second shell fragment 32 is respectively oneself of the first elastic supporting member for supporting optical member 3 By holding, the free end of the first elastic supporting member for supporting optical member 3 includes two, a free end for the first shell fragment 31, and another is the second bullet The free end of piece 32, and two free end interval settings of the first elastic supporting member for supporting optical member 3, i.e. the first shell fragment 31 and the second shell fragment 32 exist " V " type is projected as formed by horizontal plane.The joint face of 31 free end of the first shell fragment is welded and fixed with mass 2, the second shell fragment 32 The joint face of free end is welded and fixed with the inwall of upper casing 11.

In the same manner, the second elastic supporting member for supporting optical member 4 includes the 3rd shell fragment 41 and the 4th shell fragment 42, the two ends and the 4th of the 3rd shell fragment 41 The joint face that the two ends of shell fragment 42 have joint face, 42 one end of joint face and the 4th shell fragment of 41 one end of the 3rd shell fragment respectively is welded It is fixed, the free end of the other end respectively second elastic supporting member for supporting optical member 4 of the other end and the 4th shell fragment 42 of the 3rd shell fragment 41, second The free end of elastic supporting member for supporting optical member 4 includes two, a free end for the 3rd shell fragment 41, another freedom for the 4th shell fragment 42 End, and two free end interval settings of the second elastic supporting member for supporting optical member 4, i.e. the 3rd shell fragment 41 and the 4th shell fragment 42 horizontal plane institute into Be projected as " V " type.The joint face of 41 free end of the 3rd shell fragment is welded and fixed with mass 2, the company of 42 free end of the 4th shell fragment Junction is welded and fixed with the inwall of upper casing 11.

It should be noted that in order to prevent polarization, 41 free end of joint face and the 3rd shell fragment of 31 free end of the first shell fragment Joint face be welded and fixed with mass 2 along the same diagonal of 2 top surface of mass, i.e. the joint face of 31 free end of the first shell fragment With the joint face of 41 free end of the 3rd shell fragment be supported on two of mass 2 it is diagonal on.

Shell fragment (refer to any one in the first above-mentioned shell fragment 31, the second shell fragment 32, the 3rd shell fragment 41, the 4th shell fragment 42, Shell fragment mentioned below can be obtained in the same manner) part in addition to the joint face of two ends is elasticity arm, in order to increase the wilfulness of shell fragment, elastic force The profile of arm has breach, and the breach is symmetric form breach or asymmetric breach；If the breach is symmetric form breach, bullet Piece is " I " type, as shown in Figure 4；If the breach is asymmetric breach, shell fragment is " C " type, as shown in Figure 5.

In addition, the height of the joint face at shell fragment two ends is equal to or less than the height of mass 2, preferential embodiment is The height of the joint face at shell fragment two ends is highly identical with mass 2.

In order to increase the contact area of shell fragment and upper casing 11, can be with the freedom of the two panels shell fragment in each elastic supporting member for supporting optical member The relative one side in end pastes block respectively.Specifically, in a preferred embodiments of the present utility model, the first shell fragment 31 is certainly The joint face of 32 free end of one side and the second shell fragment not welded with mass 2 by the joint face held do not weld with upper casing 11 one Face is pasted with block 5 respectively, and block 5 increases the contact area of shell fragment and upper casing 11, so as to reduce shell fragment in vibration processes In suffered stress.

In another preferred implementation of the present utility model, it is pasted with the one side do not pasted with shell fragment of block 5 Silicagel pad 6, can distinguish bonding silicagel pad 6, it is also possible to which one of which is kept off on two blocks 5 of 2 the same side of mass Bonding silicagel pad 6 on block 5, when linear vibration motor is dropped, silicagel pad 6 can play a part of buffering spring sheet, prevent shell fragment it Between mutual collision and the damage that causes.

In this utility model, oscillator also includes Magnet 7 and washer 8, in a detailed embodiment, Magnet 7 and China The quantity of department 8 is respectively two pieces, and Magnet 7 is permanent magnet material, there is provided permanent magnetic field, washer 8 play a part of magnetic conduction.Washer 8 is tied Close at the top of Magnet 7, the Magnet 7 and washer 8 being combined together is embedded in mass 2, specifically, open in mass 2 Installing hole is provided with, the Magnet being combined together and washer are arranged in the installing hole, and the hole depth of installing hole is equal to Magnet 7 and washer 8 height sum.

In this utility model, linear vibration motor also includes stator, and stator includes 9 He of coil being arranged on lower casing 12 The pad solder of flexible printed circuit board 10, coil 9 and flexible printed circuit board 10, one end of flexible printed circuit board 10 is stretched out Shell 1, is connected with the wire of external power source, therefore, flexible printed circuit board 10 plays the work of connection coil 9 and external power source With.

Open up fluted corresponding to the position of Magnet 7 in the bottom of mass 2, coil 9 is contained in the groove, is opened up Groove makes the bottom of mass 2 form two highly relatively low cylinders, and one of cylinder is pressed in flexible printed circuit board 10 On, in order to ensure the steady of mass 2, height and the flexible printed circuit board 10 of the cylinder being pressed on flexible printed circuit board 10 Height sum be equal to another cylinder height, ensure the steady of mass 2 with this.Coil 9 is formed for enamel-covered wire coiling, After coil 9 is powered, Ampere force is produced between Magnet 7, so as to provide driving force for linear vibration motor.

In a preferred implementation of the present utility model, shielding piece 11 is pasted with the bottom of lower casing 12, by screen Cover the interference that piece 11 shields outer bound pair magnetic field.

In this utility model welding procedure mentioned above can with using bonding by the way of replace.

The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any those familiar with the art can readily occur in change in the technical scope that this utility model is disclosed Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power The protection domain that profit is required is defined.

Claims (9)

1. a kind of linear vibration motor, including：Shell and be contained in the oscillator of the inside the shell, the oscillator include mass and It is respectively fixedly connected with the elastic supporting member for supporting optical member at mass two ends along its length；Characterized in that, each elastic supporting member for supporting optical member Include two panels shell fragment, one end of two panels shell fragment is fixedly connected, the other end of two panels shell fragment be affiliated elastic supporting member for supporting optical member from By holding, the respective free end of two elastic supporting member for supporting optical member is respectively along the same diagonal and the quality of the mass top surface Block is fixedly connected, and respective another free end of two elastic supporting member for supporting optical member is fixedly connected with the inwall of the shell respectively.

2. linear vibration motor as claimed in claim 1, it is characterised in that the two panels shell fragment of each elastic supporting member for supporting optical member is in level " V " type is projected as formed by face.

3. linear vibration motor as claimed in claim 1 or 2, it is characterised in that the two panels shell fragment of each elastic supporting member for supporting optical member Profile has breach respectively, and the breach is symmetric form breach or asymmetric breach.

4. linear vibration motor as claimed in claim 3, it is characterised in that the two panels shell fragment two ends of each elastic supporting member for supporting optical member Highly equal to or less than the height of the mass.

5. linear vibration motor as claimed in claim 4, it is characterised in that in the two panels shell fragment of each elastic supporting member for supporting optical member The relative one side of free end be pasted with block respectively.

6. linear vibration motor as claimed in claim 5, it is characterised in that any one in two blocks not with shell fragment The one side of stickup is pasted with silicagel pad.

7. linear vibration motor as claimed in claim 6, it is characterised in that the oscillator also includes Magnet and washer, in institute State, the washer is with reference in the top of the Magnet, the Magnet being combined together and institute State washer to be arranged in the installing hole.

8. linear vibration motor as claimed in claim 7, it is characterised in that also including stator, the stator include coil and Flexible printed circuit board, the coil and the pad solder of the flexible printed circuit board, correspond in the bottom of the mass Offer for housing the groove of the coil in the position of the Magnet, the coil is contained in the groove, and is located at The bottom of the Magnet.

9. linear vibration motor as claimed in claim 8, it is characterised in that the bottom of the shell is provided with shielding piece.