CN201966779U

CN201966779U - Linear vibration motor

Info

Publication number: CN201966779U
Application number: CN2010206920762U
Authority: CN
Inventors: 蒲永华
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-09-07
Anticipated expiration: 2020-12-30

Abstract

The utility model provides a linear vibration motor, which comprises a drive coil, spring pieces and a vibrator which is connected with the spring pieces and is suspended, wherein the surface of the vibrator, which is over against to the drive coil, is a first surface, and at least two protruded positioning blocks are arranged on the first surface, and are positioned at the two sides of the drive coil. The linear vibration motor disclosed by the utility model can improve the performance of products.

Description

Linear vibration electric motor

Technical field

The utility model relates to a kind of vibrating motor, relates in particular to a kind of linear vibration electric motor that is used for the flat of portable consumer electronic product.

Background technology

Along with development of electronic technology, the portable consumer electronic product more and more is subjected to pursuing of people, as mobile phone, handheld device, guider or palm multimedia entertainment equipment etc., generally all can use vibrating motor and do system feedback, such as vibrational feedback of the incoming call prompting of mobile phone, information indicating, navigation hint, game machine etc.Use so widely, just require the performance height of vibrating motor, long service life.

Use linear vibration electric motor more and that vibrating motor better performances is a flat at present, the linear vibration electric motor of correlation technique mainly comprises the pedestal that is provided with spatial accommodation, be positioned at coil on the pedestal, be connected in the resilient support part of pedestal, be suspended on the oscillator of being made up of balancing weight and permanent magnet of spatial accommodation by elastic supporting member for supporting optical member, coil is positioned at the below centre of permanent magnet, and the two is contained in the spatial accommodation of pedestal in the lump.But in drop test, the phenomenon that is shifted can appear in the coil of this kind structure, makes properties of product not good.

Therefore, be necessary to provide a kind of new linear vibration electric motor to solve above-mentioned defective.

The utility model content

The purpose of this utility model is to solve the deficiency of said structure coil displacement, and a kind of linear vibration electric motor that can protect coil is provided.

The technical solution of the utility model is as follows: a kind of linear vibration electric motor, it comprises drive coil, spring part and is connected the oscillator that suspends with described spring part, described oscillator is a first surface over against the surface of drive coil, described first surface is provided with the locating piece of at least two projections, and described locating piece is positioned at the both sides of drive coil.

Preferably, described linear vibration electric motor also comprises the intermediate plate of self-align extension, and described intermediate plate is folded in an end of spring with oscillator.

Preferably, described locating piece is a strip.

Preferably, described oscillator is provided with the protuberance that extends towards spring part, and described locating piece is the L type and spreads out to protuberance and stretch.

The utlity model has following advantage: since oscillator on the surface of drive coil, be provided with locating piece, can protect coil, set winding, make the performance of product improve.

Description of drawings

Fig. 1 is the utility model linear vibration electric motor one embodiment three-dimensional exploded view;

Fig. 2 is the utility model linear vibration electric motor one embodiment part-structure stereogram;

Fig. 3 is the utility model linear vibration electric motor one embodiment cutaway view.

Embodiment

Below in conjunction with drawings and embodiments the utility model linear vibration electric motor is described further.

As shown in Figure 1 to Figure 3, be the utility model one embodiment linear vibration electric motor, other draw together pedestal 70, with the cover plate 10 of pedestal 70 windings, be connected in pedestal 70 spring part 50, be suspended on the oscillator 60 in the spatial accommodation, the wiring board 20 that is contained in the drive coil 40 in the spatial accommodation and is electrically connected by spring part 50 with drive coil 40.

Oscillator 60 is provided with the junction surface 623 that is connected with spring part 50, oscillator 60 comprises balancing weight 62 and permanent magnet 61, balancing weight 62 comprises that main body 621 reaches by main body 621 extended protuberances 622, protuberance 622 and junction surface 623 are positioned at the same side of permanent magnet 61, main body 621 is provided with through hole 624, permanent magnet 61 comprises two blocks of magnet, and two blocks of magnet are separately fixed in two through holes.Have the gap between coil 40 and the permanent magnet 61, the magnetic pole of permanent magnet 61 is over against coil 40, and permanent magnet 61 is opposite over against the magnetic pole polarised direction of coil 40.Described balancing weight 62 is provided with the first surface 625 over against drive coil 40, and described first surface is provided with at least two locating pieces 31, and locating piece 31 is positioned at the both sides of drive coil 40, can play the effect of protection drive coil 40, location drive coil 40.Described locating piece 31 can be strip, also can be the L type and spread out to protuberance 622 and stretch.

Spring part 50 is provided with the fixed part 511 that is connected with junction surface 623, extends along fixed part 511 to be provided with free section 512, and described free section 512 is vertical mutually with fixed part 511, and is connected to two adjacent sides of oscillator 60 respectively.Be extended with intermediate plate 32 for self-align 31, described intermediate plate 32 is folded in an end of spring part 50 with oscillator 60, and is preferred, and intermediate plate 32 is folded in fixed part 511 with junction surface 623, make between spring part 50 and the oscillator 60 be connected more solid and reliable.

Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.

Claims

1. linear vibration electric motor, it comprises drive coil, spring part and is connected the oscillator that suspends with described spring part, described oscillator is a first surface over against the surface of drive coil, it is characterized in that: described first surface is provided with the locating piece of at least two projections, and described locating piece is positioned at the both sides of drive coil.

2. linear vibration electric motor according to claim 1 is characterized in that: described linear vibration electric motor also comprises the intermediate plate of self-align extension, and described intermediate plate is folded in an end of spring with oscillator.

3. linear vibration electric motor according to claim 2 is characterized in that: described locating piece is a strip.

4. linear vibration electric motor according to claim 2 is characterized in that: described oscillator is provided with the protuberance that extends towards spring part, and described locating piece is the L type and spreads out to protuberance and stretch.