Utility model content
The utility model provides a kind of anti-shake camera module and has applied its mobile terminal, and having solved camera module in prior art does not have mechanical force indemnifying measure, thereby causes that mechanical force is inhomogeneous, the unsettled phenomenon of focusing.
A kind of anti-shake camera module that the utility model provides, comprise: the first shell fragment, magnet cover, the first pad, described the first pad comprises second, the first pad first surface and the first pad, described the first pad first surface pushes against described the first shell fragment, and described first pad the second face pushes against magnet cover, and described the first pad is electrically connected to described the first shell fragment and magnet cover.
Further, described anti-shake camera module, comprises successively: coil block and the second shell fragment, and the second pad, described the second pad is between coil block and the second shell fragment, and the both ends of the surface of described the second pad push against respectively coil block and the second shell fragment.
Further, described anti-shake camera module, comprises successively: the second shell fragment and lower cover, and the second pad, described the second pad is between the second shell fragment and lower cover, and the both ends of the surface of described the second pad push against respectively the second shell fragment and lower cover.
Further, described the second pad is FPC.
Further, the thickness of described the first pad is below 0.2mm.
Further, described the first shell fragment is provided with tin hole on the first shell fragment, and described the first pad is provided with tin hole on the first pad, and on described the first shell fragment, on tin hole and the first pad, tin hole coordinates welding to be electrically connected to.
Further, on described, cover and be provided with upper cover limiting section, described the first shell fragment is provided with the first shell fragment limiting section, and described upper cover limiting section coordinates clamping the first shell fragment limiting section, described the first pad is provided with the first pad limiting section, and described upper cover limiting section coordinates clamping the first pad limiting section.
Further, described anti-shake camera module, also comprises: coil block, and described coil block outside is provided with coil fixed part, and described the second shell fragment is provided with the second shell fragment fixed part, and described the second shell fragment fixed part is arranged on described coil fixed part.
Further, cover under described and be provided with electric connection terminal, described the second pad is electrically connected to described electric connection terminal and the second shell fragment.
A kind of mobile terminal that the utility model provides, comprises above-described a kind of anti-shake camera module.
The utility model provides a kind of anti-shake camera module and has applied its mobile terminal, by be provided with the first pad that both ends of the surface push against respectively both between the first shell fragment and magnet cover, between the second shell fragment and lower cover, be provided with the second pad that both ends of the surface push against respectively both, better the first shell fragment and the second shell fragment are fixed in its position, having solved camera module in prior art does not have mechanical force indemnifying measure, thereby causes that mechanical force is inhomogeneous, the unsettled phenomenon of focusing.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, unless otherwise clearly defined and limited, term " " center ", " length ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Although traditional camera possesses the anti-shake function of optics already, and relevant technology and device sell in market already, yet it is still also immature compared with the anti-shake technology of the optics of small mobile terminals to can be used in mobile phone etc.Main cause is that the mechanical space of anti-shake motor is little, relevant design is subject to the restriction in space, if the position of shell fragment fixed position changes, to cause the mechanical force of motor to change thereupon, mechanical force cannot reach consistent with electromagnetic force, causes camera module in focusing process, to produce the unsettled phenomenon of focusing.
Now in disclosed patent document, never relate to the solution of above-mentioned phenomenon.Therefore,, when mechanical force cannot reach theory and requires, not timely, thoroughly effectively indemnifying measure, can only not revise by the parts to other, to reach the object of optimizing mechanical force.Yet, this method length consuming time, poor reliability, engineering are many, have increased greatly the cost of product, have elongated the design cycle, have weakened the competitiveness of product in market.Existing optimization method major defect is as follows:
The first, existing product space coordinates relative compact, causes shell fragment fixed position to occur do not have space allocation parts relatively flexibly to carry out the compensation of distance after relative displacement, and the mechanical force of motor and theoretical value are not inconsistent, and has directly affected the function of motor.
The second, shell fragment directly contacts with mechanism arrangement, and while causing scolding tin due to the restriction of material, the increasing of technology difficulty and then shell fragment distortion increase, and engineering loss strengthens, and production cost improves, and product yield is lower.
The 3rd, space deficiency has caused being seriously decreased to of focussing distance to make camera lens zoom in or out multiplying power minimizing, causes properties of product greatly to decline.
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figures 1 to 6, the utility model provides a kind of anti-shake camera module, comprising:
The first shell fragment 200,
Magnet cover 400,
The first pad 300, described the first pad 300 comprises second, the first pad first surface and the first pad, described the first pad first surface pushes against described the first shell fragment 200, described first pad the second face pushes against magnet cover 400, described the first pad 300 is electrically connected to described the first shell fragment 200 and magnet cover 400
Concrete, described anti-shake camera module, comprises successively: coil block 600 and the second shell fragment 700,
The second pad 800, described the second pad 800 is between coil block 600 and the second shell fragment 700, and the both ends of the surface of described the second pad 800 push against respectively coil block 600 and the second shell fragment 700.
Concrete, described anti-shake camera module, comprises successively: the second shell fragment 700 and lower cover 900,
The second pad 800, described the second pad 800 is between the second shell fragment 700 and lower cover 900, and the both ends of the surface of described the second pad 800 push against respectively the second shell fragment 700 and lower cover 900.Described the second pad 800 is FPC.FPC is the abbreviation of Flexible Printed Circuit, claims again Flexible Printed Circuit, flexible printed circuit board, and flex circuit application is called for short soft board or FPC, has that distribution density is high, lightweight, the feature of thin thickness.Main use is at a lot of products such as mobile phone, notebook computer, PDA, digital camera, LCM.FPC flexible printed circuit is to take polyimides or polyester film a kind ofly to have height reliability, an excellent pliable printed circuit as what base material was made.
Concrete, the thickness range of described the first pad 300 is below 0.2mm.
Concrete, the thickness range of described the second pad 800 is below 0.2mm.
The interstice coverage pushing against of the utility model embodiment is preferably less than 0.02mm, the various tolerances of generation when processing, manufacturing and assembling due to moulding and metalwork, and this scope is within permissible value.
The utility model provides a kind of anti-shake camera module, by be provided with both ends of the surface between the first shell fragment 200 and magnet cover 400, push against respectively both the first pads 300, between the second shell fragment 700 and lower cover 900, be provided with the second pad 800 that both ends of the surface push against respectively both, better the first shell fragment 200 and the second shell fragment 700 are fixed in its position, having solved camera module in prior art does not have mechanical force indemnifying measure, thereby causes that mechanical force is inhomogeneous, the unsettled phenomenon of focusing.
As shown in Figure 6, its concrete principle is as follows:
Driving device power F=k(shell fragment coefficient of elasticity) * x(motor displacement);
Drive electromagnetic force F3=B(magnetic field intensity) * I(motor electrical current) * L(magnetic field useful space length);
In order to make driving device power F and to drive electromagnetic force F3 to reach relative balance, keep: F=F3, the first pad 300 is by the magnetoelectricity of self material, be electrically connected to the first shell fragment 200 and magnet cover 400, and regulated the x(motor displacement in driving device power by the first pad 300 with the second pad 800 thickness own) relative initial position, thereby reached the effect of balancing machine power, so camera module reaches metastable movement environment.
F(mechanical force)=F1(the first shell fragment mechanical force)+F2(the second shell fragment mechanical force);
F1(the first shell fragment mechanical force)=K(the first shell fragment coefficient of elasticity) * X1;
F2(the second shell fragment mechanical force)=K(the second shell fragment coefficient of elasticity) * X2;
Wherein X1 is the first shell fragment initial displacement value, by the first pad 300 and the height of coil block 600, is determined;
Wherein X2 is the second shell fragment initial displacement value, by the second pad 800 with the height of coil block 600, determines.
Concrete, described the first shell fragment 200 is provided with tin hole 210 on the first shell fragment, and described the first pad 300 is provided with tin hole 310 on the first pad, and on described the first shell fragment, on tin hole 210 and the first pad, tin hole 310 coordinates welding to be electrically connected to.By interior of tin hole 310 glue on tin hole 210 on the first shell fragment and the first pad, by glue, undertaken bonding the first shell fragment 200 and the first pad 300 being fixed on magnet cover 400.
Concrete, described upper cover 100 is provided with upper cover limiting section 110, it is spacing and be assembled on upper cover 100 by upper cover limiting section 110 after above-mentioned the first shell fragment 200 of upper cover limiting section, the first pad 300, magnet cover 400 bondings are good, described the first shell fragment 200 is provided with the first shell fragment limiting section 220, and described upper cover limiting section 110 coordinates clamping the first shell fragment limiting section 220.More specifically, described the first pad 300 is provided with the first pad limiting section 320, and described upper cover limiting section 110 coordinates clamping the first pad limiting section 320.Due to the thickness of the first shell fragment 200 as thin as a wafer, if adopt prior art directly the first shell fragment 200 to be welded on upper cover 100, increased the difficulty of soldering tin technique, and can increase the distortion of the first shell fragment 200, reduced product yield, improved production cost.But adopted first, with upper cover limiting section, locate, then after spacing with upper cover limiting section 110 clampings, just do not need to adopt soldering tin technique that the first shell fragment 200 is fixed on upper cover 100, improved product yield, reduced production cost.Do not need to adopt soldering tin technique that the first pad 300 is directly welded on the first shell fragment 200, cause the distortion of the first shell fragment 200 and the first pad 300 yet.
Concrete, described the second shell fragment 700 is provided with the second shell fragment limiting section 710, and described lower cover 900 is provided with lower cover limiting section, and described lower cover limiting section coordinates clamping the second shell fragment limiting section 710.More specifically, described the second pad 800 is provided with the second pad limiting section 820, and described lower cover limiting section coordinates clamping the second pad limiting section 820.
Concrete, described anti-shake camera module, also comprises:
Coil block 600, described coil block 600 outsides are provided with coil fixed part 610, and described the second shell fragment 700 is provided with the second shell fragment fixed part 720, and described the second shell fragment fixed part 720 is arranged on described coil fixed part 610.
Preferably, described coil fixed part 610 and the second shell fragment fixed part 720 are undertaken bonding by glue.By put glue in coil fixed part 610 and the second shell fragment fixed part, the second shell fragment 700 is fixed on coil block 600.
Due to the thickness of the second shell fragment 700 as thin as a wafer, if adopt prior art directly the second shell fragment 700 to be welded on coil block 600, increased the difficulty of soldering tin technique, and can increase the distortion of the second shell fragment 700, reduced product yield, improved production cost.But adopted first, with upper cover limiting section, locate, then after spacing with coil fixed part 610 clampings, just do not need to adopt soldering tin technique that the second shell fragment 700 is fixed on coil block 600, improved product yield, reduced production cost.Do not need to adopt soldering tin technique that the second pad 800 is directly welded on the second shell fragment 700, cause the distortion of the second shell fragment 700 and the second pad 800 yet.
Concrete, described lower cover 900 is provided with electric connection terminal 910, and described the second pad 800 is electrically connected to described electric connection terminal 910 and the second shell fragment 700.More specifically, described the second pad 800 is provided with the second pad solder sections 810, and described electric connection terminal 910 is provided with terminal solder sections, and described the second pad solder sections 810 and terminal solder sections are electrically connected to by welding.
Soldering tin material is requisite in the production of electron trade and maintenance work, and as a rule, conventional soldering tin material has leypewter scolding tin, adds antimony scolding tin, adds cadmium scolding tin, adds silver soldering tin, adds brazing tin.The wire scolding tin using during standard weld job is called as rosin-core solder line or solder stick.In scolding tin, added scaling powder.This scaling powder is comprised of rosin and a small amount of activating agent.During weld job, the setting of temperature is extremely important.The optimal temperature of weld job is at fusing point+50 of the welding of using degree.The design temperature of solder horn, due to the size of welding portion, the power of electric iron and performance, the kind of scolding tin and the difference of line style also will increase by 100 degree and be advisable on the basis of said temperature.The main product of scolding tin is divided into solder stick, soldering tin bar, and three large classes of solder(ing) paste, the utility model embodiment mainly adopts the working method of solder(ing) paste.Be applied to, in all kinds of electronic welding, be applicable to manual welding, wave soldering, in the techniques such as reflow soldering.
The utility model also provides a kind of mobile terminal, comprises above-described a kind of anti-shake camera module.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.