阅读说明：本技术 防抖动透镜驱动装置 (Anti-shake lens driving device ) 是由 刘铁刚 崔桥军 吴东东 于 2019-09-02 设计创作，主要内容包括：本发明公开了防抖动透镜驱动装置,包括壳体和载体,所述载体的上下部均弹性连接在壳体内,还包括：防抖动磁体,所述防抖动磁体固定连接在壳体内,所述防抖动磁体等距布置在载体的外侧；防抖动线圈,所述防抖动线圈的一平面平行于防抖动磁体的内端面,另一平面平行固定连接在载体的外端面,所述防抖动线圈的位置与防抖动磁体相对应,所述防抖动线圈通电后配合防抖动磁体作用产生相对于透镜光轴垂直的电磁力,推动载体及透镜平行于图像传感器运功以实现防抖动功能,本发明可以有效补偿图像拍摄时的人手抖动,因此四周成像效果较好,同时结构简单与手机或便携式摄像设备的小体积相匹配。(The invention discloses an anti-shake lens driving device, which comprises a shell and a carrier, wherein the upper part and the lower part of the carrier are elastically connected in the shell, and the anti-shake lens driving device also comprises: the anti-shaking magnet is fixedly connected in the shell and is arranged on the outer side of the carrier at equal intervals; the anti-shake device comprises an anti-shake coil, wherein one plane of the anti-shake coil is parallel to the inner end face of an anti-shake magnet, the other plane of the anti-shake coil is fixedly connected to the outer end face of a carrier in parallel, the position of the anti-shake coil corresponds to that of the anti-shake magnet, the anti-shake coil is electrified to generate electromagnetic force vertical to the optical axis of a lens by matching with the action of the anti-shake magnet, and the carrier and the lens are pushed to run parallel to the image sensor to realize the anti-shake function.)

1. Prevent shake lens drive arrangement, including casing (1) and carrier (2), the equal elastic connection in casing (1) of upper and lower portion of carrier (2), its characterized in that: further comprising:

The anti-shaking magnet (4), the anti-shaking magnet (4) is fixedly connected in the shell (1), and the anti-shaking magnet (4) is arranged on the outer side of the carrier (2) at equal intervals;

The anti-shake device comprises an anti-shake coil (6), one plane of the anti-shake coil (6) is parallel to the inner end face of the anti-shake magnet (4), the other plane of the anti-shake coil is fixedly connected to the outer end face of the carrier (2) in parallel, the position of the anti-shake coil (6) corresponds to that of the anti-shake magnet (4), the anti-shake coil (6) is electrified and then is matched with the anti-shake magnet (4) to act to generate electromagnetic force perpendicular to the optical axis of a lens, and the carrier (2) and the lens are pushed to move parallel to the image sensor to achieve the anti-shake function.

2. The anti-shake lens driving device according to claim 1, wherein the anti-shake magnet (4) is a multi-pole magnet, and south and north magnetic poles of the same plane of the anti-shake magnet (4) are arranged at equal intervals;

The anti-shake magnet is characterized in that the anti-shake coil (6) is of a rectangular structure, and the straight line edge of the anti-shake coil (6) is parallel to the south magnetic pole or the north magnetic pole of the same plane of the anti-shake magnet (4).

3. the anti-shake lens driving device according to claim 1, wherein a protrusion (7) is fixedly connected to an outer end surface of the carrier (2), and the anti-shake coil (6) is wound and fixedly connected to the protrusion (7).

4. The anti-shake lens driving device according to claim 3, wherein the protrusions (7) are L-shaped members, and the openings of the protrusions (7) at the upper and lower ends of the carrier (2) are oppositely arranged.

5. the anti-shake lens driving device according to claim 1, further comprising: the focusing magnets (3) and the anti-shaking magnets (4) are arranged at intervals and fixedly connected in the shell (1), the focusing magnets (3) are arranged on the outer side of the carrier (2) at equal intervals, and the same magnetic poles of the focusing magnets (3) are arranged towards the carrier (2);

The focusing coil (5) is located between the carrier (2) and the focusing magnet (3), the focusing coil (5) is wound on the outer edge of the carrier (2), and the focusing coil (5) is electrified and then matched with the focusing magnet (3) to generate electromagnetic force parallel to the optical axis of the lens so as to drive the carrier (2) to do linear motion along the optical axis direction of the lens.

6. anti-shake lens driving device according to claim 5, wherein the upper and lower parts of the carrier (2) are elastically coupled in the housing (1) by an upper spring (8) and a lower spring (9), respectively.

7. The anti-shake lens driving device according to claim 6, wherein the housing (1) includes a base (13) and an upper cover (10), the base (13) supporting the lower spring (9), and the upper cover (10) supporting the upper spring (8).

8. The anti-shake lens driving device according to claim 7, further comprising a shield cover (11), wherein the shield cover (11) is fixedly connected between the base (13) and the upper cover (10).

9. The anti-shake lens driving device according to claim 5, wherein a limiting groove (12) is formed in the peripheral side wall of the carrier (2), and the focusing coil (5) is wound and fixedly connected in the limiting groove (12).

Technical Field

the invention relates to the technical field of anti-shake lens equipment, in particular to an anti-shake lens driving device.

Background

At present, optical anti-shake lens driving devices applied to micro-sized camera equipment such as mobile phones at home and abroad mainly have two structures: one is a translation type, and the other is a shift shaft type; the translation type is parallel movement relative to the image sensor, the axis of translation type is tilt movement relative to the image sensor, and both can perform corresponding translation or tilt movement according to the movement direction and displacement detected by the movement sensor, such as a gyroscope or an accelerometer, so as to achieve the purposes of stabilizing images and compensating hand trembling.

The movable shaft type optical anti-shake lens driving device performs tilting motion relative to the image sensor to realize an anti-shake function, performs vertical motion relative to the image sensor to realize an automatic focusing function, and can be realized by adopting a set of suspension system and electromagnetic force driving system; the device has simple structure, but because of the shift movement of the lens, the surrounding imaging effect is poor, and the device is not in accordance with the high-quality imaging effect required by the current market.

The translational optical anti-shake lens driving device moves in parallel relative to the image sensor to realize an anti-shake function, and moves vertically relative to the image sensor to realize an automatic focusing function; in the prior art, two independent suspension and electromagnetic force driving systems are generally adopted, and a position sensor such as a Hall element is required to detect the moving direction and the moving amount; the device has the advantages of complex structure, more workpieces, extremely high requirement on workpiece precision, difficult assembly, low production efficiency and yield, large product volume and great conflict with the small volume requirement of the mobile phone or the portable camera equipment.

Disclosure of Invention

the present invention is directed to an anti-shake lens driving device to solve the above-mentioned problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

Anti-shake lens drive arrangement, including casing and carrier, the equal elastic connection in the casing of upper and lower portion of carrier still includes:

The anti-shaking magnet is fixedly connected in the shell and is arranged on the outer side of the carrier at equal intervals;

And one plane of the anti-shaking coil is parallel to the inner end face of the anti-shaking magnet, the other plane of the anti-shaking coil is parallel to and fixedly connected with the outer end face of the carrier, the position of the anti-shaking coil corresponds to that of the anti-shaking magnet, and the anti-shaking coil is electrified to generate electromagnetic force vertical to the optical axis of the lens by matching the action of the anti-shaking magnet, so that the carrier and the lens are pushed to run parallel to the image sensor to realize the anti-shaking function.

As a further scheme of the invention: the anti-shaking magnet is a multi-pole magnet, and the south magnetic pole and the north magnetic pole of the same plane of the anti-shaking magnet are arranged at equal intervals;

The anti-shake coil is of a rectangular structure, and the straight line edge of the anti-shake coil is parallel to the south magnetic pole or the north magnetic pole of the same plane of the anti-shake magnet.

the working principle of the anti-shake coil is that the current direction of the anti-shake coil is anticlockwise assumed in the drawing, the magnetic poles of the anti-shake coil are arranged as shown in the drawing, the anti-shake coil is matched with the action of the anti-shake magnet after being electrified, and the straight line sides of the anti-shake coil are parallel to the south magnetic pole or the north magnetic pole of the same plane of the anti-shake magnet, so that the two straight line sides of the anti-shake coil generate acting force in the same direction, and the acting force pushes the carrier and the lens to be parallel to the motion of the image sensor to realize the anti-shake function.

As a further scheme of the invention: the outer end face of the carrier is fixedly connected with the protrusions, the anti-shake coils are fixedly connected to the protrusions in a winding mode, and the protrusions are arranged to facilitate the anti-shake coils to be fixedly connected to the outer end face of the carrier.

As a further scheme of the invention: the bulges are L-shaped components, the bulge openings at the upper end and the lower end of the carrier are oppositely arranged, and the anti-shake coils are placed and wound and fixed at the bulge openings to prevent the anti-shake coils from being separated.

As a further scheme of the invention: further comprising: the focusing magnets and the anti-shaking magnets are arranged at intervals and fixedly connected in the shell, and the focusing magnets are arranged on the outer side of the carrier at equal intervals and arranged towards the carrier with the same magnetic poles;

The focusing coil is positioned between the carrier and the focusing magnet and is wound on the outer edge of the carrier, and the focusing coil is electrified and then matched with the focusing magnet to generate electromagnetic force parallel to the optical axis of the lens so as to drive the carrier to do linear motion along the direction of the optical axis of the lens.

As a further scheme of the invention: the upper part and the lower part of the carrier are respectively elastically connected in the shell through an upper reed and a lower reed, and the upper part and the lower part of the carrier are elastically connected in the shell through the upper reed and the lower reed.

As a further scheme of the invention: the casing includes base and upper cover, the base is used for supporting reed down, the upper cover is used for supporting the reed.

The working principle of the focusing coil is that the focusing magnet and the focusing coil actually form a basic voice coil driving structure, the direction of current flowing through the focusing coil is assumed to be counterclockwise, and the N pole of the focusing magnet faces to the carrier, so that the focusing magnet is subjected to a force F along the optical axis of the lens after being electrified, and the carrier is driven to linearly move along the optical axis of the lens against the elastic force of the upper spring leaf, obviously, under the premise that the focusing magnet is fixed, the moving distance of the carrier is controlled by changing the magnitude of the current of the focusing coil, and the moving direction of the carrier is controlled by changing the direction of the current of the focusing coil.

as a further scheme of the invention: still include the shield cover, shield cover fixed connection is between base and upper cover, and the shield cover plays the effect of support and yoke, eliminates its magnetic field as far as possible and reveals the influence to peripheral electric component.

As a further scheme of the invention: the focusing coil is fixedly connected in the limiting groove, and the limiting groove is convenient for fixedly connecting the focusing coil on the peripheral side wall of the carrier.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the anti-shaking magnet and the anti-shaking coil are arranged in the shell, the anti-shaking coil is matched with the anti-shaking magnet after being electrified, and the straight edges of the anti-shaking coil are parallel to the south magnetic pole or the north magnetic pole of the same plane of the anti-shaking magnet, so that the two straight edges of the anti-shaking coil generate acting forces in the same direction, and the acting forces push the carrier and the lens to be parallel to the motion function of the image sensor to realize the anti-shaking function, so that the shaking of hands during image shooting can be effectively compensated, the peripheral imaging effect is better, and meanwhile, the structure is simple and matched with the small size of a mobile phone or portable camera equipment.

drawings

FIG. 1 is an exploded view of an anti-shake lens driving apparatus;

FIG. 2 is a front internal view of the anti-shake lens driving apparatus;

FIG. 3 is a schematic diagram of a carrier in the anti-shake lens driving apparatus;

FIG. 4 is a schematic diagram of a carrier and an anti-shake magnet in the anti-shake lens driving apparatus;

FIG. 5 is a schematic diagram of the working principle of the focusing magnet and the focusing coil in the anti-shake lens driving device;

FIG. 6 is a schematic diagram of the operation of an anti-shake magnet and an anti-shake coil in the anti-shake lens driving apparatus;

In the figure: 1. a housing; 2. a carrier; 3. a focusing magnet; 4. an anti-shake magnet; 5. a focusing coil; 6. an anti-shake coil; 7. a protrusion; 8. a spring plate is arranged; 9. a lower reed; 10. an upper cover; 11. a shield case; 12. a limiting groove; 13. a base; 14. an upper gasket; 15. and (7) a lower gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

referring to fig. 1-6, in an embodiment of the present invention, an anti-shake lens driving apparatus includes a housing 1 and a carrier 2, wherein upper and lower portions of the carrier 2 are elastically connected in the housing 1, and the anti-shake lens driving apparatus further includes:

The anti-shaking magnet 4 is fixedly connected in the shell 1, and the anti-shaking magnets 4 are arranged on the outer side of the carrier 2 at equal intervals;

the anti-shaking coil 6 is characterized in that one plane of the anti-shaking coil 6 is parallel to the inner end face of the anti-shaking magnet 4, the other plane of the anti-shaking coil 6 is fixedly connected to the outer end face of the carrier 2 in parallel, the anti-shaking coil 6 corresponds to the anti-shaking magnet 4 in position, after being electrified, the anti-shaking coil 6 is matched with the anti-shaking magnet 4 to act to generate electromagnetic force vertical to the optical axis of the lens, the carrier 2 and the lens are pushed to run parallel to the image sensor to achieve the anti-shaking function, the lens is fixedly connected in the carrier 2, and the image sensor is arranged.

the anti-shaking magnet 4 is a multi-pole magnet, and the south magnetic pole and the north magnetic pole of the same plane of the anti-shaking magnet 4 are arranged at equal intervals;

The anti-shaking coil 6 is of a rectangular structure, and the straight line edge of the anti-shaking coil 6 is parallel to the south magnetic pole or the north magnetic pole of the same plane of the anti-shaking magnet 4.

the working principle of the anti-shaking coil 6 is that in fig. 6, it is assumed that the current direction of the anti-shaking coil 6 is counterclockwise, the magnetic poles of the anti-shaking coil 6 are arranged as shown in fig. 6, the anti-shaking coil 6 is electrified and then cooperates with the action of the anti-shaking magnet 4, and because the straight line edge of the anti-shaking coil 6 is parallel to the south magnetic pole or the north magnetic pole of the same plane of the anti-shaking magnet 4, the two straight line edges of the anti-shaking coil 6 both generate acting force in the same direction, and the acting force pushes the carrier 2 and the lens to run parallel to the image sensor to realize the anti-shaking function, obviously, under the premise that the anti-shaking magnet 4 is fixed, the moving distance of the carrier 2 is controlled by changing the current magnitude of the anti-shaking coil 6, and the moving direction is controlled by changing.

the outer terminal surface fixedly connected with of carrier 2 is protruding 7, and anti-shake coil 6 winding fixed connection is on protruding 7, and the setting of protruding 7 is convenient for with anti-shake coil 6 winding fixed connection at the outer terminal surface of carrier 2.

The bulge 7 is an L-shaped component, the openings of the bulge 7 positioned at the upper end and the lower end of the carrier 2 are oppositely arranged, and the anti-shake coil 6 is placed and wound and fixed at the opening of the bulge 7 to prevent the anti-shake coil 6 from being separated.

Further comprising: the focusing magnets 3 and the anti-shaking magnets 4 are arranged at intervals and fixedly connected in the shell 1, the focusing magnets 3 are arranged at the outer side of the carrier 2 at equal intervals, and the same magnetic poles of the focusing magnets 3 are arranged towards the carrier 2;

focusing coil 5, focusing coil 5 is located between carrier 2 and focusing magnet 3, and focusing coil 5 is wound on the outer edge of carrier 2, focusing coil 5 generates electromagnetic force parallel to the lens optical axis by cooperating with focusing magnet 3 after being electrified, so as to drive carrier 2 to make linear motion along the lens optical axis direction,

The upper part and the lower part of the carrier 2 are respectively elastically connected in the shell 1 through an upper reed 8 and a lower reed 9, and the upper part and the lower part of the carrier 2 are elastically connected in the shell 1 through the upper reed 8 and the lower reed 9.

The working principle of the focusing coil 5, in fig. 5, the focusing magnet 3 actually forms a basic voice coil driving structure with the focusing coil 5, and it is assumed that the current direction of the focusing coil 5 is counterclockwise, and the N pole of the focusing magnet 3 faces the carrier 2, then the focusing magnet 3 will receive a force F along the optical axis of the lens after being energized, and accordingly the carrier 2 will be driven to move linearly along the optical axis of the lens against the elastic force of the upper spring 3, obviously, under the premise that the focusing magnet 3 is fixed, the moving distance of the carrier 2 is controlled by changing the current magnitude of the focusing coil 5, and the moving direction is controlled by changing the current direction of the focusing coil 5.

Housing 1 includes base 13 and upper cover 10, base 13 is used for supporting lower spring 9, and upper cover 10 is used for supporting upper spring 8.

an upper insulating spacer 14 and a lower insulating spacer 15 are provided, the upper spacer 14 is used for fixedly connecting the individual units of the upper spring 8 and insulating the individual units from each other, and the lower spacer 15 is used for fixedly connecting the individual units of the lower spring 9 and insulating the individual units from each other.

The focusing coil 5 and the anti-shake coil 6 are supplied with current through an upper spring 8 and a lower spring 9, the upper spring 8 is integrally formed and electrically connected with the focusing coil 5 and the anti-shake coil 6, respectively, and the lower spring 9 has independent units insulated from each other and is integrally connected with the independent units through a lower gasket 15.

The magnetic shielding device further comprises a shielding cover 11, the shielding cover 11 is fixedly connected between the base 13 and the upper cover 10, the shielding cover 11 plays a role in supporting and magnetic yoke, and influence of magnetic field leakage on peripheral electric parts is eliminated as much as possible.

Limiting grooves 12 are formed in the peripheral side wall of the carrier 2, the focusing coil 5 is wound and fixedly connected into the limiting grooves 12, and the focusing coil 5 is wound and fixedly connected onto the peripheral side wall of the carrier 2 through the limiting grooves 12.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.