Background technology
The electronic installation such as mobile phone, personal digital aid (PDA) is provided with the camera module, takes a picture or camera function so that these electronic installations have.
A kind of camera module, it comprises base and is fixed in lens mounting frame on this base.Offer the through hole of accommodating convex lens on this lens mounting frame.General this lens mounting frame is fixed on base by viscose glue.
When testing after above-mentioned camera module group assembling, find that the convex lens in camera lens is contaminated, after needing to remove this lens mounting frame from this base, clean this convex lens.Yet lens mounting frame is fixed in base by viscose glue, and it is difficult to remove, and this demolishing process is easily damaged lens mounting frame or base.If the damage lens mounting frame needs to take out the assemblies such as convex lens and voice coil motor in this lens mounting frame, re-assembly after the replacing lens mounting frame.
Summary of the invention
In view of above-mentioned condition, be necessary to provide a kind of camera module that is easy to dismantle.
A kind of camera module, the protective cover that it comprises base, is located at the lens mounting frame on this base and accommodates lens mounting frame, base is provided with the holding section, and protective cover is provided with the grab that fastens with the holding section.This base comprises installed surface and is located at the boss at this installed surface middle part, and this holding section is the elongate slots shape and is located at this boss opposing both sides.This protective cover comprises base plate and a pair of the first side plate of being connected with this base plate, and each first side plate is formed with breach away from the middle part, edge of base plate, and this grab is that opposite side from breach is towards the interior lateral buckling extension of the first side plate and the shell fragment of space.
The base of above-mentioned camera module is provided with the holding section, and protective cover is provided with grab, and grab and holding section fasten; therefore; when it found problem is arranged in test, it can be relatively easily from this lens mounting frame of base dismounting, in case stop loss bad this camera lens mounting bracket before test is completed.
Embodiment
Below in conjunction with drawings and the embodiments, camera module of the present invention is described in further detail.
See also Fig. 1 and Fig. 2, the camera module 100 of better embodiment of the present invention comprises lens mounting frame 10, base 20 and protective cover 30.Lens mounting frame 10 is contained in protective cover 30, and is located on base 20.Be equiped with voice coil motor (not shown) in lens mounting frame 10.Protective cover 30 and base 20 engagement connections.
Lens mounting frame 10 is roughly rectangular, two pairs of sides 14,16 that it comprises end face 11, is connected with end face 11.Lens mounting frame 10 is formed with groove 12 on end face 11.The bottom of groove 12 offers the through hole 121 of mounted lens (not shown).Wherein a pair of side 16 is respectively equipped with two location divisions 161 away from the edge of end face 11.In present embodiment, the fin that location division 161 extends in parallel for 16 edge from the side, lens mounting frame 10 is fixedly connected with base 20 by hot-setting adhesive.
Base 20 is roughly rectangular, and it comprises installed surface 21, a pair of the first side 22 that is connected with installed surface 21 and a pair of the second side 23 that is connected with installed surface 21.The middle part of installed surface 21 is formed with boss 212.Boss 212 is formed with holding section 213 near a middle side part of the first side 22.Base 20 offers an accepting groove 215 in a side of installed surface 21 close holding sections 213.Each second side 23 forms an auxiliary section 231 near two sides of the first side 22.Match with the location division 161 of lens mounting frame 10 in auxiliary section 231, with spacing lens mounting frame 10.In present embodiment, holding section 213 is the slot that is opened in a side of boss 212.Auxiliary section 231 is the stage portion that is formed at two opposite sides of the second side 23.
Protective cover 30 comprises roughly rectangular base plate 31, a pair of the first side plate 33 and a pair of the second side plate 35.The first side plate 33 and the second side plate 35 spaces, and extend substantially vertically towards the same side of base plate 31 from the edge of base plate 31, to form an approximate rectangular box-like body.The height of the first side plate 33 is slightly larger than the height of the second side plate 35.The middle part of base plate 31 offers shooting through hole 312.Each first side plate 33 is provided with a pair of grab 334 away from the edge of base plate 31.This holding section 213 to grab 334 and base 20 fastens, so that lens mounting frame 10 is fixed on base 20.Holding section 213 can be grab, slot, engaging fin etc.In present embodiment, each first side plate 33 is formed with a breach 331 away from middle part, the edge of base plate 31, and grab 334 be from the opposite side of breach 331 shell fragment towards the interior lateral buckling extension of the first side plate 33.Protective cover 30 can be made of metal, and makes it have electromagnetic shielding action.
During fixed lens installing rack 10, at first, lens mounting frame 10 correspondences are positioned on the installed surface 21 of base 20, are matched in the location division 161 of lens mounting frame 10, with spacing lens mounting frame 10 with the auxiliary section 231 of base 20.Then, protective cover 30 is positioned on lens mounting frame 10, lens mounting frame 10 is contained in protective cover 30.At last, make the grab 334 and the corresponding engaging in the holding section 213 of base 20 of protective cover 30, the end of the first side plate 33 of protective cover 30 is contained in the accepting groove 215 of base 20, to locate this protective cover 30.
The protective cover 30 of above-mentioned camera module 100 adopts metal material to make, and it can reduce external electromagnetic field and disturb.Base 20 is provided with holding section 213, and protective cover 30 is provided with grab 334, and grab 334 fastens with holding section 213, and therefore, they can be relatively easily from base 20 these lens mounting frames 10 of dismounting before test is completed.And the grab 334 of protective cover 30 adopts metal material to make, and it is frangibility not, even accident fractures in unloading process, only need change protective cover 30 and get final product, and need not to change other assembly, therefore, can greatly reduce the assembly cost of above-mentioned camera module 100.
Be appreciated that each first side plate 33 is provided with a grab 334 away from the edge of base plate 31.After to be tested completing, at the junction coating hot-setting adhesive of lens mounting frame 10 with base 20, heating is solidified hot-setting adhesive, thereby further fixes this lens mounting frame 10.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included in the present invention's scope required for protection.