CN101131526B

CN101131526B - Camera motor structure

Info

Publication number: CN101131526B
Application number: CN200610062280A
Authority: CN
Inventors: 萧呈方; 周兵; 洪健隆; 黄晋兴; 游丰檀
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2006-08-25
Filing date: 2006-08-25
Publication date: 2010-05-26
Anticipated expiration: 2026-08-25
Also published as: JP5184845B2; JP2008052281A; CN101131526A

Abstract

There is a sort of motor configuration of the camera, it consists of the seat body, the module of the camera lens fixed in the seat body, and the motor which is used to driving the module of the camera lens fixed in the seat body. This motor consists of a reel and the magnet fixed besides the module of the camera lens at least. This reel has the loop, and the two lead terminal of the two thrum of the leading loop is fixed in the reel. The two connecting terminal which are connected with the two thrum of the loop are fixed in the seat body, the two connecting terminal extend to the exterior of the seat body which is used to connect the power in order to make the loop connect to the power. The configuration of this motor of the camera is systematic. It makes for the assembly of the motor of the camera and the batch production.

Description

Camera motor structure

Technical field

The present invention relates to a kind of motor configuration, particularly a kind of camera motor structure.

Background technology

Digital camera has become very the fashional consumption product of popularizing, the general masses sightseeing tour of going out, and outdoor outing, indoor party is all caught fine moment with digital camera, stays precious memory.Along with prevailing of digital photographing mobile phone, pocket-size digital camera has become one of indispensable equipment of mobile phone, and in a foreseeable future, digital camera will be applied on the more electronic product.

General camera structure comprises cylindrical shell, be located in the shell motor and by the camera lens module of this motor driven, this motor comprises the permanent magnet that is located on the camera lens module periphery and is wound in coil winding on the stator core.When coil electricity, magnet on coil excitation and the camera lens module produces and interacts and promote camera lens module and move.Wherein, the bottom of shell is provided with circuit board, and circuit board is provided with image sensor.In the camera lens module moving process, by the sharpness of image sensor sensing image, the electric current of circuit board control coil reaches focus function.Coil winding is provided with connection terminal so that coil is connected on the power supply, owing to the side of these terminals corresponding to shell, thereby needs be electrically connected on the circuit board of shell bottom by the terminal of soft arranging wire with the shell side.

Above-mentioned camera structure is owing to need external soft arranging wire to realize the combination of motor modular structure, cause its complex structure, thereby produce, expend time in during the assembling camera, cost is higher, and, be not suitable for the systematization production of camera motor structure and the diminishing development trend of size of future products because of being made up defectives such as being difficult to batch process or reduction batch process speed in the mode of robotization.

Summary of the invention

In view of this, be necessary the camera motor structure that a kind of structural systemization is provided and is easy to assemble.

This camera motor structure comprises pedestal, is located at the camera lens module in this pedestal and is located at the motor that is used to drive this camera lens module in this pedestal, this motor comprises at least one bobbin and is located at the magnet of camera lens module periphery, be wound with coil on this bobbin, and this bobbin is provided with two conductor terminals of two the end of a thread of guiding coil, this pedestal is provided with two splicing ears that are electrically connected with two the end of a thread of coil, is used for outward being connected with power supply coil is electrically connected to power supply thereby this two splicing ear is through to pedestal.

Compared with prior art, this camera motor structure forms conductor terminal on bobbin, and motor is connected with power supply by splicing ear in conjunction with the splicing ear on the pedestal, and make the structural systemization of camera motor, help the assembling and the mass production of camera motor.

Description of drawings

With reference to the accompanying drawings, in conjunction with the embodiments the present invention is further described.

Fig. 1 is the decomposing schematic representation of camera motor structure one preferred embodiment of the present invention.

Fig. 2 is the solid assembling synoptic diagram of camera motor structure shown in Figure 1.

Fig. 3 is the inner structure synoptic diagram after camera motor structure shown in Figure 2 is removed shell.

Fig. 4 is the cut-open view of camera motor structure shown in Figure 2 along the IV-IV line.

Fig. 5 is the inner structure synoptic diagram of another embodiment of camera motor structure of the present invention.

Embodiment

With reference to the accompanying drawings, be described further in conjunction with the embodiments.

Please also refer to Fig. 1 to Fig. 3, this camera motor is a two-part focusing camera motor, can drive camera lens telescopic moving between perifocus and over focus, comprise pedestal 10, be contained in the camera lens module 50 in the pedestal 10 and be located at the upper bobbin 30 and the lower lower 40 of camera lens module both sides about in the of 50 respectively, be wound with upper and

lower coil

35,45 respectively on this upper and

lower bobbin

30,40.

Pedestal 10 comprises base 15, loam cake 60 and shell 70.This base 15 is a square framework, and the centre is provided with an opening (not indicating).Four jiaos of base 15 all upwards are convexly equipped with the outstanding bight of formation, and base 15 is respectively equipped with terminal containing hole 111,121 on its two

adjacent bights

11,12, and these two terminal containing holes 111,121 run through base 15, are respectively applied for ccontaining splicing ear 21,22.These two

splicing ears

21,22 all are " Z " word shape structure, comprise respectively and be arranged in pars intermedia 21b, the 22b in the terminal containing hole 111,121 and protrude in the 21a of upper/lower terminal portion (22a), 21c (22c) outside the terminal containing hole 111 (121), wherein upper end 21a, 22a are plane sector structure, and

bottom

21c, 22c are elongated.Upper end 21a, the 22a of these two

splicing ears

21,22 places on two

bights

11,12 respectively and is respectively applied for

coil

35,45 and be electrically connected, bottom 21c, the 22c then circuit board below placing base 15 (figure does not show) link to each other, thereby coil 35,45 is electrically connected on the circuit board, offer the blind hole 131 that does not run through base 15 on another bight 13 of base 15, in order to place another splicing ear 23, this terminal 23 is the folding shape, one end is placed in the blind hole 131, the other end places on the bight 13, is used for being electrically connected with coil 35,45.Described

bight

11,12,13 forms boss 14 respectively in its outer rim.

Shell 70 is the hollow flat column, wherein a dihedral becomes a chamfering, when being installed in shell 70 on the base 15, one jiao of shell 70 corresponding chamferings is resisted against base 15 and is not provided with on the internal face in a bight (indicating) in hole, and the other triangle of shell 70 places respectively on the boss 14 in

bight

11,12,13 of base 15.Form the space of ccontaining camera lens module 50, upper bobbin 30 and lower lower 40 in the middle of the shell 70.Loam cake 60 is covered on the shell 70, and with the shape of cross section and the sizableness of shell 70, central authorities form circular hole (not indicating) for camera lens module 50 telescopic movings.

Upper bobbin 30 and lower lower 40 are all made by magnetic material, comprise the

joint portion

36,46 that is tabular respectively and be

circular winding section

39,49, be wound with the coil of set direction on the

winding section

39,49 respectively, promptly go up coil 35 and lower coil 45, among this embodiment, the direction of winding of two

coils

35,45 is opposite.The

joint portion

36,46 of upper and

lower bobbin

30,40 roughly is square, and central authorities are provided with circular hole (not indicating), extend to form this

winding section

39,49 from the circular hole inner edge, and wherein the inner edge of winding section 49 inwardly is convexly equipped with and forms two symmetrically arranged side's bar projections 494.Joint portion 46 sizes of lower lower 40 are suitable with base 15, form a breach (not indicating) respectively in Qi Sijiao, and each bight of the size shape of these breach and base adapts.When joint portion 46 was loaded on the base 15, its breach was sticked in the bight of base 15, and lower lower 40 is fixed on the base 15.An integrally formed conductor terminal, i.e. outlet terminal 43 and input terminal 41 respectively on adjacent two angles of the joint portion 46 of lower lower 40.The shape of the joint portion 36 of upper bobbin 30 is suitable with loam cake 60, forms a conductor terminal on its two diagonal angle respectively, i.e. input terminal 33 and outlet terminal 32.These

conductor terminal

32,33,41,43 all elongated shapes, the

joint portion

36,46 perpendicular to correspondence extends to form respectively.

Camera lens module 50 is placed between the upper and

lower bobbin

30,40 versatilely, comprises lens barrel 51 and camera lens 53.Lens barrel 51 inner peripheral surfaces are provided with internal thread, and camera lens 53 outer peripheral faces are provided with external thread, and lens barrel 51 screws togather mutually by internal and external screw thread with camera lens 53 and is fixed into one (please refer to Fig. 4).Lens barrel 51 periphery middle position rings are established magnet 55, and lens barrel 51 peripheries convex with annular flange flange 511 in the below of magnet 55 one, are used for carrying magnet 55, and isolate magnet 55 and lower lower 40.The bottom of lens barrel 51 forms two and caves inward and axially extended groove 514, these two grooves 514 are symmetrical arranged, the projections 494 of formation are complementary in the winding section 49 of its position, size and lower lower 40, and the engaging by groove 514 and projection 494 realizes the location of camera lens module 50 at circumferencial direction.The annular gasket 57 that magnet 55 tops placement one usefulness copper or other nonmagnetic substances are made is used for isolating magnet 55 and upper bobbin 30.This magnet 55 and pad 57 are fixed on the lens barrel 51 by a glue, make lens barrel 51, camera lens 53,

magnet

55 and 57 one-tenth on pad as a whole, and do stretching motion and realize focus function when camera motor is worked.

As shown in Figures 3 and 4, Fig. 3 removes the package assembly synoptic diagram of shell 70 for this camera motor, during assembling, two

bobbins

30,40 place outside the lens barrel 51, and place the both sides up and down of magnet 55 respectively, make the conductor terminal 33,32 on the upper bobbin 30 corresponding with the

bight

13,12 of base 15 respectively, the

conductor terminal

41,43 on the lower lower 40 is corresponding with the

bight

11,13 of base 15 respectively.Wherein the end of a thread of last coil 35 is wound on the input terminal 33 of upper bobbin 30, another the end of a thread is wound on the outlet terminal 32 of upper bobbin 30, wherein the end of a thread of lower coil 45 is wound on the input terminal 41 of lower lower 40, another the end of a thread is wound on the outlet terminal 43 of lower lower 40, and will go up on the upper end 22a that the end of a thread that is wound in the coil 35 on the outlet terminal 32 is welded in splicing ear 22, the end of a thread that is wound in the lower coil 45 on the input terminal 41 is welded on the upper end 21a of splicing ear 21, last coil 35 other the end of a thread with lower coil 45 all is welded on the terminal 23, splicing

ear

21,22

bottom

21c, 22c is connected with the both positive and negative polarity of power supply respectively, goes up like this,

lower coil

35,45 just form series circuit.

Suppose that camera lens module 50 initially is positioned at perifocus, promptly the flange on the lens barrel 51 511 leans with the winding section 49 of lower lower 40, and forms the gap between the winding section 39 of pad 57 and upper bobbin 30, and the height in this gap equals the spacing between the motor bifocal.After this camera motor energising, because the direction of winding of two

coils

35,45 is opposite, the polarity of the magnetic field direction of two

coils

35,45 is opposite, and the lower end of promptly going up coil 35 is identical with the upper end field pole of lower coil 45, and the upper end of last coil 35 is identical with the lower end field pole of lower coil 45.If the feasible upward upper end of coil 35, energising back and the lower end of lower coil 45 are the N utmost point, then going up the lower end of coil 35 and the upper end of lower coil 45 is the S utmost point; If it is the S utmost point that the change direction of current makes the upper end of coil 35 and the lower end of lower coil 45, then going up the lower end of coil 35 and the upper end of lower coil 45 is the N utmost point.Among this embodiment, the top of supposing magnet 55 is the N utmost point, the below is the S utmost point, on, lower coil 35, after 45 energisings, when the upper end of the lower end of last coil 35 and lower coil 45 is the S utmost point, then go up 35 pairs of magnet of coil 55 and produce attractive force, 45 pairs of magnet of lower coil 55 produce repulsive force, thereby promote camera lens module 50 and move to over focus from down to up, thereby this motor driven camera lens module 50 moves to over focus from this perifocus, be bottom-up motion, the pad 57 and the winding section 39 of upper bobbin 30 are leant, and form the gap between the winding section 49 of flange 511 on the lens barrel 51 and lower lower 40 (promptly position) as shown in Figure 4.Otherwise, when camera lens module 50 is positioned at over focus, can drives camera lens module 50 and move downward to perifocus from over focus, between bifocal, switch.This moment, upper and

lower coil

35,45 passed to inverse current by the control of the circuit on the circuit board, make the lower end of coil 35 and the upper end of lower coil 45 be the N utmost point, 35 pairs of magnet of last coil 55 produce repulsive force, 45 pairs of magnet of lower coil 55 produce attractive force, move to perifocus from top to bottom thereby promote camera lens module 50.In like manner, if the top of magnet 55 is the S utmost point, the below is the N utmost point, after upper and

lower coil

35,45 energisings, when the upper end of the lower end of last coil 35 and lower coil 45 is the S utmost point, then go up 35 pairs of magnet of coil 55 and produce repulsive force, 45 pairs of magnet of lower coil 55 produce attractive force, move to perifocus from top to bottom thereby promote camera lens module 50; When electrical current was reverse, the upper end of the lower end of last coil 35 and lower coil 45 all was transformed to the N utmost point, and 35 pairs of magnet of last coil 55 produce attractive force, and 45 pairs of magnet of lower coil 55 produce repulsive force, moved to over focus from down to up thereby promote camera lens module 50.

When camera lens module 50 moved to over focus or perifocus position, because bobbin the 30, the 40th, magnetic material was made, and can inhale mutually with magnet 55, after cutting off electric current, still can make camera lens module 50 remain on the relevant position, not need keeping of electric current, thereby can save electric power.Simultaneously owing to have pad 57, flange 511 that magnet 55 and upper and

lower bobbin

30,40 are separated, thereby magnet 55 is directly contacted with upper and

lower bobbin

30,40, avoid producing excessive attractive force, make it separation difficulty.

Among this embodiment,

form conductor terminal

32,33,41,43 on the upper and

lower bobbin

30,40, and also form the

splicing ear

21,22 run through pedestal 15 on the pedestal 15, these

splicing ears

21,22 stretch out pedestal 15 and link to each other with circuit board under the pedestal 15, thereby the end of a thread of two

coils

35,45 is electrically connected on the circuit board by these

terminals

32,33,41,43,21,22, avoided the external soft arranging wire of upper and

lower coil

35,45, make and help the camera motor structure systematization its assembling, produce in batches and match with other assemblies.

Above-mentioned is to the present invention's specifying of a preferred embodiment wherein, form motor by upper and

lower bobbin

30,40 and upper and

lower coil

35,45 and magnet 55 among this embodiment,

conductor terminal

32,33,41,43 on the upper and

lower bobbin

30,40 is applied on this two-part focusing motor, in fact these

conductor terminals

32,33,41,43 and splicing

ear

21,22,23 may be used on the other forms of motors such as step motor, and corresponding adjustment also can be done according to the configuration and the electric connection mode of coil winding in its quantity and position.For example, please refer to Fig. 5, two

coils

35,45 also can be connected in parallel, can change two the end of a thread of coil and the annexation of power positive cathode this moment by the position relation that changes coil the end of a thread and terminal, input terminal 33a on the upper bobbin 30 is arranged on one jiao corresponding with the bight 11 of base 15 in the embodiment shown in fig. 5, and the outlet terminal 43a on the lower lower 40 can be arranged on one jiao corresponding with the bight 12 of base 15.Wherein the end of a thread of last coil 35 is wound on the outlet terminal 32 of upper bobbin 30, another the end of a thread is wound on the input terminal 33a of upper bobbin 30, wherein the end of a thread of lower coil 45 is wound on the outlet terminal 43a of lower lower 40, another the end of a thread is wound on the input terminal 41 of lower lower 40, and will go up the end of a thread that is wound on the outlet terminal 43a in the end of a thread that is wound in outlet terminal 32 in the coil 35 and the lower coil 45 and all be welded on the upper end 22a of splicing ear 22, all be welded on the upper end 21a of splicing ear 21 being wound in the end of a thread that is wound on the input terminal 41 in the end of a thread on the input terminal 33a and the lower coil 45 in the last coil 35, splicing

ear

21,22

bottom

lower coil

35,45 just form parallel circuit.This kind connecting mode can save splicing ear 23.

Claims

1. camera motor structure, comprise pedestal, be located at the camera lens module in this pedestal and be located at the motor that is used to drive this camera lens module in this pedestal, this motor comprises at least one bobbin and is located at the magnet of camera lens module periphery, be wound with coil on this bobbin, it is characterized in that: this bobbin is provided with two conductor terminals of two the end of a thread of guiding coil, this pedestal is provided with two splicing ears that are electrically connected with two the end of a thread of coil, is used for outward being connected with power supply coil is electrically connected to power supply thereby this two splicing ear extends to pedestal.

2. camera motor structure as claimed in claim 1 is characterized in that: described motor comprises first, second bobbin that is divided into the magnet both sides, is wound with first, second coil respectively on this first, second bobbin.

3. camera motor structure as claimed in claim 2 is characterized in that: two the end of a thread of each coil are electrically connected with this two splicing ear respectively.

4. camera motor structure as claimed in claim 2, it is characterized in that: described pedestal comprises base and is positioned at shell on the base, this base is square, described splicing ear is located at two bights of base respectively, and be electrically connected with wherein the end of a thread of two coils respectively, another bight of this base is provided with the 3rd terminal, and the 3rd terminal is electrically connected with other the end of a thread of two coils.

5. camera motor structure as claimed in claim 4 is characterized in that: base forms containing hole to two bights that should two splicing ears and passes for this two splicing ear, forms blind hole on the bight of corresponding the 3rd terminal with ccontaining the 3rd terminal.

6. camera motor structure as claimed in claim 4 is characterized in that: the wherein conductor terminal on each bobbin is corresponding to the 3rd terminal, and another conductor terminal of each bobbin is respectively to should two splicing ears.

7. camera motor structure as claimed in claim 6, it is characterized in that: two bights that two conductor terminals on described first bobbin are adjacent with base respectively are corresponding, two bights that two conductor terminals on described second bobbin are relative with base respectively are corresponding, and described two splicing ears lay respectively on adjacent two bights of base.

8. camera motor structure as claimed in claim 1 is characterized in that: described bobbin comprises joint portion and the winding section that extends to form, this joint portion certainly, and all vertical the extension forms described conductor terminal from the joint portion.

9. camera motor structure as claimed in claim 8 is characterized in that: described pedestal comprise base, loam cake and be located at base and loam cake between shell, four bights of base raise up, four jiaos of shell are arranged in respectively on four bights of base.

10. camera motor structure as claimed in claim 9 is characterized in that: the joint portion of described bobbin is square, and its quadrangle becomes breach and is stuck on four bights of base.

11. camera motor structure as claimed in claim 1 is characterized in that: described each splicing ear is " Z " shape, comprises two ends and connects the pars intermedia at these both ends.

12. camera motor structure, comprise base, lens barrel, be located at camera lens in the lens barrel, be located at lens barrel outer magnet, the upper bobbin that is divided into the magnet both sides and lower lower and be wound in last coil and lower coil on upper bobbin and the lower lower respectively, it is characterized in that: described lower lower is located on the base, this base is provided with first splicing ear and second splicing ear that is connected with the both positive and negative polarity of power supply respectively, on this in coil and the lower coil two of each coil the end of a thread be electrically connected to respectively on this first splicing ear and second splicing ear.

13. camera motor structure as claimed in claim 12, it is characterized in that: this upper bobbin is provided with and is respectively applied for two conductor terminals that two the end of a thread of coil are gone up in guiding, two the end of a thread should going up coil are wrapped in respectively on two conductor terminals of this upper bobbin, this lower lower is provided with two conductor terminals of two the end of a thread that are respectively applied for the guiding lower coil, and two the end of a thread of this lower coil are wrapped in respectively on two conductor terminals of this lower lower.

14. camera motor structure as claimed in claim 13, it is characterized in that: this first splicing ear is electrically connected jointly with one of them the end of a thread of last coil and one of them the end of a thread of lower coil, and this second splicing ear is electrically connected jointly with another the end of a thread of last coil and lower coil.

15. camera motor structure, comprise base, lens barrel, be located at the camera lens in the lens barrel, be located at the outer magnet of lens barrel, be divided into the upper bobbin and the lower lower of magnet both sides and be wound in last coil and lower coil on upper bobbin and the lower lower respectively, it is characterized in that: described lower lower is located on the base, this base is provided with one first splicing ear, one second splicing ear and one the 3rd splicing ear, this first splicing ear is electrically connected with one of them the end of a thread of lower coil, this second splicing ear is electrically connected with wherein the end of a thread of last coil, this first splicing ear is connected with the both positive and negative polarity of power supply respectively with second splicing ear, and the 3rd splicing ear is electrically connected jointly with another the end of a thread of last coil and lower coil.