Voice coil motor is used flat elastic piece
Technical field
The utility model relates to miniature actuating device field, relates more specifically to a kind of voice coil motor that is applied on the voice coil motor and uses flat elastic piece.
Background technology
Along with the high speed development of portable consumption electronic products technology such as mobile phone, digital camera, the popularity of consumer electronics is increasingly high.People also have increasingly high pursuit to portable type electronic product when enjoying modern scientific and technical result, hope that portable electronic product can effectively reduce volume.But be subject to the development of dynamo-electric whole system; And micro electronmechanical (Microelectromechanical Systems; MEMS) application universalness not as yet is so (Voice Coil Motor VCM) is actuating system on the electronic product to industry widespread usage voice coil motor.
Voice coil motor (VCM) has advantages such as volume is little, and power consumption is few, the actuating displacement is accurate and cheap.Be suitable as the short distance brake in the electronic product, like the upper and lower displacement actuator on mobile phone vibrating motor magnetic head/optical read/write head, the automatic focus actuator of camera or the like.Yet, the actuating of voice coil motor/recovery pace of change compared to electronic product easily several milliseconds pace of change be slower a bit, therefore, in the middle of voice coil motor, can add at least a shell fragment and quicken the pace of change that activates/restore.Usually, voice coil motor comprises that a sidewall is the square fixation kit with magnetic, and one is provided with voice coil loudspeaker voice coil and is contained in the movable part in this square fixation kit.Behind the logical upward electric current of this coil, the Lorentz force that this coil groups produces in this magnetic part acting in conjunction makes this movable part move along the central axis direction of this square fixation kit, thereby realizes that short distance moves.
After voice coil motor assembles, become business men need pass through Dan Pin and fall and the bale packaging drop test, the voice coil motor of test passes just can come into the market.In the process of test, because the microminiaturization of voice coil motor, cause when assembling shell fragment to be difficult for assembling and easy deformation extremely.Therefore when drop test, the adhesion deficiency of normal because shell fragment and support causes shell fragment to come off, so the actuating performance that causes this voice coil motor with and less stable.
In actual use, shell fragment produces elastic deformation when work, and the stress that the junction of shell fragment and fixed frame receives is maximum, to such an extent as to surpass elastically-deformable scope, thus cause shell fragment to follow the string.
Therefore need badly and a kind ofly activate performance and the good voice coil motor of stability is used flat elastic piece.
The utility model content
The purpose of the utility model provides and a kind ofly activates performance and the good voice coil motor of stability is used flat elastic piece.
To achieve these goals; The utility model discloses a kind of voice coil motor and use flat elastic piece; Be used for voice coil motor, it comprises: fixed frame, connector and the elastic component of the rectangular frame shape of hollow, said elastic component be structure and be connected in the inside of said fixed frame through said connector ringwise.
Preferably; Said connector comprises bend and is connected two connecting portions at said bend two ends; The inwall that two said connecting portions are adjacent with said fixed frame respectively is parallel; Wherein a said connecting portion is connected with the inwall of said fixed frame, and another said connecting portion is connected with the outer wall of said elastic component.
Preferably, said inwall comprises first inwall, second inwall, the 3rd inwall and the 4th inwall, and said first inwall, second inwall, the 3rd inwall and the 4th inwall all are connected with said elastic component through said connector.
Preferably, the centre of a said inwall, second inwall, the 3rd inwall and the 4th inwall is provided with and is used for the boss that is connected with said connecting portion.
Preferably, the outer wall of said elastic component is provided with uniformly and is used for the boss that is connected with said connecting portion.
Preferably, said fixed frame, connector and elastic component are integrative-structure.
Preferably, be provided with some somes glue holes on the said elastic component uniformly.
Preferably, said elastic component inner and outer wall spacing is 0.01~0.10mm.
Preferably, the thickness of said elastic component is 0.05~0.09mm.
Compared with prior art, the disclosed voice coil motor of the utility model is with in the flat elastic piece, because said elastic component structure and be connected in the inside of said fixed frame through said connector ringwise.Therefore said voice coil motor with flat elastic piece in the course of the work, stressed evenly, greatly degree reduces the stress between said connector and the said elastic component, effectively enhance elasticity effect and raising actuating performance and stability.
Through following description and combine accompanying drawing, it is more clear that the utility model will become, and these accompanying drawings are used to explain the embodiment of the utility model.
Description of drawings
Fig. 1 is the perspective view of the utility model voice coil motor with flat elastic piece.
Fig. 2 is the vertical view of the utility model voice coil motor with flat elastic piece.
Embodiment
With reference now to accompanying drawing, describe the embodiment of the utility model, the similar elements label is represented similar elements in the accompanying drawing.As stated; Like Fig. 1 and shown in Figure 2; The utility model provides voice coil motor with flat elastic piece 100; Be used for voice coil motor, it comprises: the fixed frame 10 of the rectangular frame shape of hollow, connector 20 and elastic component 30, said elastic component 30 be structure and be connected in the inside of said fixed frame 10 through said connector 20 ringwise.
The preferably; Like Fig. 1 and shown in Figure 2; Said connector 20 comprises connector 20a, connector 20b, connector 20c and connector 20d; Said connector 20a, connector 20b, connector 20c and connector 20d include bend 21 and are connected two connecting portions 22 at said bend 21 two ends; The inwall 11 that two said connecting portions 22 are adjacent with said fixed frame 10 respectively is parallel, and wherein a said connecting portion 22 is connected with the inwall 11 of said fixed frame 10, and another said connecting portion 22 is connected with the outer wall 31 of said elastic component 30.Particularly; Said inwall 11 comprises the first inwall 11a, the second inwall 11b, the 3rd inwall 11c and the 4th inwall 11d; Said inwall 11 comprises that the first inwall 11a, the second inwall 11b, the 3rd inwall 11c and the 4th inwall 11d all are connected with said elastic component 30 through said connector 20; And said connector 20a two connecting portions 22 are parallel with the said first inwall 11a and the second inwall 11b respectively; Said connector 20b two connecting portions 22 are parallel with said second inwall 11b and the 3rd inwall 11c respectively; Said connector 20c two connecting portions 22 are parallel with said the 3rd inwall 11c and the 4th inwall 11d respectively, and said connector 20d two connecting portions 22 are parallel with said the 4th inwall 11d and the first inwall 11a respectively.
The preferably, like Fig. 1 and shown in Figure 2, said inwall 11 comprises that the centre of the first inwall 11a, the second inwall 11b, the 3rd inwall 11c and the 4th inwall 11d is provided with and is used for the boss 12 that is connected with said connecting portion 22.
The preferably, like Fig. 1 and shown in Figure 2, the outer wall 30b of said elastic component 30 is provided with uniformly and is used for the boss 12 that is connected with said connecting portion 22.
The preferably, like Fig. 1 and shown in Figure 2, said fixed frame 10, connector 20 and elastic component 30 are integrative-structure.
The preferably like Fig. 1 and shown in Figure 2, is provided with some somes glue holes 31 uniformly on the said elastic component 30.
The preferably, like Fig. 1 and shown in Figure 2, said elastic component 30 inwall 30a and outer wall 30b spacing are 0.01~0.10mm.
The preferably, like Fig. 1 and shown in Figure 2, the thickness of said elastic component 30 is 0.05~0.09mm.
In conjunction with Fig. 1-2, the disclosed voice coil motor of the utility model is with flat elastic piece 100, because said elastic component 30 structure and be connected in the inside of said fixed frame 10 through said connector 20 ringwise.Therefore said voice coil motor with flat elastic piece 100 in the course of the work, stressed evenly, greatly degree reduces the stress between said connector 20 and the said elastic component 30, effective enhance elasticity effect and raising actuating performance and stability.
More than combine most preferred embodiment that the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to the essence of the utility model.