CN201867565U

CN201867565U - Automatic focusing camera module

Info

Publication number: CN201867565U
Application number: CN2010201867815U
Authority: CN
Inventors: 肖爱芳; 庞泽江; 蒋武昌
Original assignee: BYD Co Ltd
Current assignee: Shenzhen Holitech Optoelectronics Co Ltd
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2011-06-15
Anticipated expiration: 2020-04-30

Abstract

An automatic focusing camera module comprises a camera lens, an outer casing, a coil, a carrier, a coil base, a module base, a sensor and a circuit board, wherein the coil base is equipped with two conductive terminals, the module base is provided with through holes corresponding to the conductive terminals, the circuit board is provided with conductive through holes corresponding to the conductive terminals, the coil is wound around the carrier, both ends of the coil are electrically connected with the two conductive terminals respectively, the coil together with the carrier are arranged inside a casing body consisting of the outer casing and the coil base, the camera lens is arranged inside the carrier, the sensor is arranged on the circuit board and is electrically connected with the circuit board, the coil base, the module base and the circuit board are sequentially and fixedly connected, the conductive terminals sequentially pass through the through holes on the module base and the conductive through holes on the circuit board, and the conductive terminals are electrically connected with the conductive through holes on the circuit board. Compared with the prior art, the automatic focusing camera module has the advantages that a terminal base is reduced, and two locating columns are reduced, therefore, the height of the camera module is reduced, and the cost is lowered.

Description

A kind of camera module of automatic focusing

Technical field

The utility model relates to the picture pick-up device technical field, but relates in particular to a kind of camera module of automatic focusing.

Background technology

In recent years, people combine optical lens and imageing sensor (CCD or CMOS) becomes a kind of small-sized optical digital image transitions module, i.e. camera module.This camera module is applied to can make digital photographing/camera function on these existing product bands on the portable sets such as mobile phone, palm PC, notebook computer.This portable set that has photograph/camera function is released, and just has been subjected to liking and pursuing of users.

From camera development, focus, three kinds of manual focusing and automatic focusings.Cameras with fixed focus can only be taken the scenery that certain distance is arranged normally apart, close shot just cannot be taken clear, particularly the gap of camera close shot more than the 1000000 picture numbers and distant view focal length is bigger, therefore should just must be with the focusing function by the above camera of mega pixel; And manually and the automatic focusing module have focus control, can satisfy the demand of many focal lengths capture, it is more advanced wherein to belong to the automatic focusing camera again, use more convenient, suitable common amateur photographer's use.

General cameras with fixed focus module mainly is made up of lens assembly, pedestal, imageing sensor (CCD or CMOS) and pcb board, and lens assembly is corresponding with the photosensitive region of imageing sensor by pedestal, and together is loaded on the pcb board; Imageing sensor is electrically connected with internal circuit on the pcb board, and imageing sensor and pcb board convert the light signal that collects to data image signal, are connected with peripherals (as the mobile phone main body) by the connector on the pcb board again.

And the contour structures synoptic diagram of the camera module of traditional automatic focusing as shown in Figure 1, and Fig. 2 is its decomposition texture synoptic diagram; 1 is camera lens, the 2nd among the figure, shell, the 3rd, coil, the 4th, carrier, the 5th, coil base, the 6th, terminal base, the 7th, module base, the 8th, imageing sensor, the 9th, pcb board, the 51st, square conducting terminal, the 71st, reference column, two conducting terminals 51 are positioned on the diagonal angle of coil base 5, and coil base 5, terminal base 6 and module base 7 are corresponding rectangle or square structure; Coil winding is in the periphery of carrier, and coil is drawn two leads and is electrically connected with two conducting terminals 51, and coil is placed in the shell together with carrier; With conducting terminal 51 corresponding positions via hole is arranged on the terminal base 6, conducting terminal 51 is by this via hole; Fluted with conducting terminal 51 corresponding positions on the module base 7, this groove is used to place conducting terminal 51, and conducting terminal 51 welds together by scolding tin and module base 7, also has two reference columns 71 on two other diagonal angle of module base 7; Imageing sensor 8 nations fixed (Bonding) are to pcb board 9, and position corresponding with conducting terminal 51 on the pcb board 9 is fluted, and this groove is used to hold conducting terminal and is connected with conducting terminal; There is via hole at the position corresponding with reference column 71, and reference column 71 passes this via hole and plays fixation.

Three bases, two conducting terminals, two reference columns are arranged in the total of the prior art, and these must cause material therefor to increase, thereby increase cost.

The utility model content

The prior art problem that the utility model solves is in the traditional automatic focusing camera module total three bases, two conducting terminals, two reference columns to be arranged, and these must cause material therefor to increase, thereby increase cost.

For solving the problems of the technologies described above, the utility model provides following technical scheme:

The camera module of a kind of automatic focusing that the utility model relates to, comprise camera lens, shell, coil, carrier, have two conducting terminals coil base, with the corresponding position of conducting terminal contain through hole module base, sensor, contain the wiring board of conductive through hole with the corresponding position of conducting terminal; Described coil winding is in the periphery of carrier, two ends of coil are electrically connected with two conducting terminals respectively, coil is arranged in the housing of shell and coil base composition together with carrier, camera lens is arranged in the carrier, sensor is arranged on the wiring board and with wiring board and is electrically connected, coil base, module base and wiring board are fixedly connected sequentially, and conducting terminal passes through hole on the module base and the conductive through hole on the wiring board successively, and conducting terminal is electrically connected with conductive through hole on the wiring board.

Further, described conduction reference column is a right cylinder.

Further, further comprise an infrared fileter on the described module base.

Further, described conduction reference column is connected by conducting resinl with conductive through hole on the wiring board.

Further, described sensor is electrically connected with wiring board by Bang Ding.

Further, described shell, coil base, module base are fixedlyed connected by glue with wiring board.

Further, also include screens and edge on the described coil base lower surface, also comprise on the module base upper surface respectively and screens and corresponding screens groove of edge and draw-in groove.

Compared with prior art the utlity model has following beneficial effect: the camera module of a kind of automatic focusing that the utility model embodiment provides comprises coil base, module base and two conduction reference columns, reduced by a terminal base compared with prior art, reduced by two reference columns, make the height of camera module reduce like this, and reduced cost.

Description of drawings

Fig. 1 is the contour structures synoptic diagram of camera module of a kind of automatic focusing of prior art;

Fig. 2 is the decomposition texture synoptic diagram of camera module Fig. 1 of a kind of automatic focusing of prior art;

Fig. 3 is the contour structures synoptic diagram of the embodiment that provides of the utility model;

Fig. 4 is the decomposition texture synoptic diagram of embodiment Fig. 3 of providing of the utility model.

Embodiment

Clearer for technical matters, 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 only in order to explanation the utility model, and be not used in qualification the utility model.

Fig. 3 is the contour structures synoptic diagram of the embodiment that provides of the utility model; Fig. 4 is the decomposition texture synoptic diagram of embodiment Fig. 3 of providing of the utility model; Below in conjunction with Fig. 3 and Fig. 4 present embodiment is elaborated:

A kind of camera module of automatic focusing, comprise camera lens 11, shell 12, coil 13, carrier 14, have two conduction reference columns 151 coil base 15, with conduction reference column corresponding position contain through hole 161 module base 16, sensor 17, contain the wiring board 18 of conductive through hole 181 with the corresponding position of conduction reference column; Coil 13 is wound on the periphery of carrier 14, two ends of coil 13 are electrically connected with two conduction reference columns 151 respectively, coil 13 is arranged in the housing of shell 12 and coil base 15 compositions together with carrier 14, camera lens 11 is arranged at carrier interior 14, sensor 17 is arranged on the wiring board 18 and with wiring board and is electrically connected, coil base 15, module base 16 and wiring board 18 are fixedly connected sequentially, conduction reference column 151 passes through hole 161 on the module base 16 and the conductive through hole 181 on the wiring board 18 successively, and conduction reference column 151 is electrically connected with conductive through hole 181 on the wiring board 18.

The camera module of a kind of automatic focusing that the utility model embodiment provides comprises coil base 15, module base 16 and two conduction reference columns 151, reduced by a terminal base compared with prior art, reduced by two reference columns, make the height of camera module reduce like this, and reduced cost.

Conduction reference column 151 is right cylinders among the figure, can be rectangular parallelepiped in certain embodiments; Through hole 161 on the module base 16 and the conductive through hole 181 on the wiring board 18 are corresponding with the shape to point location post 151 so.

If wish to obtain colored image, then further comprise an infrared fileter on the module base 16, this infrared fileter is arranged in the module base 16, can the filtering infrared ray, obtain coloured image.

Conductive through hole 181 on conduction reference column 151 and the wiring board 18 is connected by conducting resinl, and flatiron high temperature can cause problems such as base thawing when having avoided like this welding in the prior art, causes the module inaccuracy of dimensions sometimes.

Among some embodiment, sensor 17 is electrically connected with wiring board 18 by Bang Ding, is used for the signal on the sensor is sent out by wiring board.

Among some embodiment, shell 12, coil base 15, module base 16 and wiring board 18 are fixedlyed connected by glue.

Among some embodiment, also include screens 153 and edge 152 on coil base 15 lower surfaces, also comprise on module base 16 upper surfaces respectively and screens 153 and edge 152 corresponding screens groove 163 and draw-in grooves 162; Can be more firm by these screens 153 and screens groove 163, edge 152 and draw-in groove 162 so that coil base 15 is connected with module base 16.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. automatic camera module of focusing is characterized in that: comprise camera lens (11), shell (12), coil (13), carrier (14), have two conduction reference columns (151) coil base (15), with the corresponding position of conduction reference column (151) contain through hole (161) module base (16), sensor (17), contain the wiring board (18) of conductive through hole (181) with the corresponding position of conduction reference column (151);

Described coil (13) is wound on the periphery of carrier (14), two ends of coil (13) are electrically connected with two conduction reference columns (151) respectively, coil (13) is arranged in the housing of shell (12) and coil base (15) composition together with carrier, camera lens (11) is arranged in the carrier (14), sensor (17) is arranged at wiring board (18) and goes up and be electrically connected with wiring board, coil base (15), module base (16) and wiring board (18) are fixedly connected sequentially, conduction reference column (151) passes through hole (161) on the module base (16) and the conductive through hole (181) on the wiring board (18) successively, and the reference column (151) that conducts electricity is electrically connected with conductive through hole (181) on the wiring board (18).

2. the camera module of a kind of automatic focusing according to claim 1, it is characterized in that: described conduction reference column (151) is a right cylinder.

3. the camera module of a kind of automatic focusing according to claim 1 is characterized in that: further comprise an infrared fileter on the described module base (16).

4. the camera module of a kind of automatic focusing according to claim 1 is characterized in that: described conduction reference column (151) is connected by conducting resinl with conductive through hole (181) on the wiring board (18).

5. the camera module of a kind of automatic focusing according to claim 1, it is characterized in that: described sensor (17) is electrically connected with wiring board (18).

6. the camera module of a kind of automatic focusing according to claim 1, it is characterized in that: described shell (11), coil base (15), module base (16) and wiring board (18) are fixedlyed connected by glue.

7. the camera module of a kind of automatic focusing according to claim 1, it is characterized in that: also include screens (153) and edge (152) on described coil base (15) lower surface, also comprise on module base (16) upper surface respectively and screens (153) and corresponding screens groove of edge (152) (163) and draw-in groove (162).