CN212433488U

CN212433488U - Driving structure, lens driving device, camera device, and electronic apparatus

Info

Publication number: CN212433488U
Application number: CN202021955047.0U
Authority: CN
Inventors: 潘寅; 易长飞
Original assignee: New Shicoh Technology Co Ltd
Current assignee: New Shicoh Motor Co Ltd; New Shicoh Technology Co Ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-01-29
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a drive structure, lens drive arrangement, camera device, electronic equipment, its technical scheme main points are: a driving structure comprises a first driving mechanism and a second driving mechanism which are arranged between a stator and a rotor, wherein the first driving mechanism and the second driving mechanism are respectively arranged on two sides of the rotor, the first driving mechanism comprises a first driving magnet and a first driving coil, the second driving mechanism comprises a second driving magnet and a second driving coil, and the first driving coil and the second driving magnet are connected with the rotor or the first driving magnet and the second driving coil are connected with the rotor. The utility model discloses reach when the active cell removes, effectively reduce the condition of magnetic interference, improve and produce property ability, reduce the required thrust of drive active cell removal.

Description

Driving structure, lens driving device, camera device, and electronic apparatus

Technical Field

The utility model relates to a photographic equipment field especially involves drive structure, lens drive arrangement, camera device, electronic equipment.

Background

The photographing apparatus generally includes a lens group, and different lenses in the lens group refract different light rays to irradiate onto an image sensor for imaging, and in order to achieve focusing and anti-shake to obtain a clear image, motors are required to be disposed around the lens group to drive the lens group to move horizontally along an optical axis direction for focusing.

In order to keep the mobile terminal light and thin, the optical axis of the camera module needs to be folded to shorten the size of the camera module in the thickness direction of the mobile terminal, and the camera module with the folded optical axis is a periscopic camera module.

The existing periscopic camera module generally comprises a stator, a rotor, a first driving mechanism (realizing AF driving function) and a second driving mechanism (realizing OIS driving function), wherein the first driving mechanism and the second driving mechanism work by utilizing a magnetic field, and the periscopic camera module is small in structure, so that when the rotor moves relative to the stator, the magnetic interference situation is easy to occur after the positions of coils and magnets in the first driving mechanism and the second driving mechanism are deviated.

Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drive structure, lens drive arrangement, camera device, electronic equipment reach when the active cell removes, effectively reduce the condition of magnetic interference, improve and produce property ability, reduce the required thrust of drive active cell removal.

The above technical purpose of the utility model is realized through following technical scheme: a driving structure comprises a first driving mechanism and a second driving mechanism which are arranged between a stator and a rotor, wherein the first driving mechanism and the second driving mechanism are respectively arranged on two sides of the rotor, the first driving mechanism comprises a first driving magnet and a first driving coil, the second driving mechanism comprises a second driving magnet and a second driving coil, and the first driving coil and the second driving magnet are connected with the rotor or the first driving magnet and the second driving coil are connected with the rotor.

The utility model discloses a further set up to: the first driving mechanism and the second driving mechanism are arranged in two groups and are symmetrically arranged relative to the center line of the rotor.

The utility model discloses a further set up to: a first Hall assembly and a second Hall assembly are arranged between the rotor and the stator, and the first Hall assembly comprises a first Hall magnet and a first Hall element; the second Hall assembly comprises a second Hall magnet and a second Hall element, wherein the first Hall magnet and the second Hall magnet are arranged on the rotor and located on the same side wall of the rotor.

The utility model discloses a further set up to: the first Hall element and the second Hall element are fixed on the FPC and electrically connected with the FPC.

The utility model discloses a further set up to: the first driving coil is a printed coil and is fixed on an FPC board of the stator.

The utility model discloses a further set up to: a lens driving device is provided with the driving structure, and further comprises a front spring group and a rear spring group which are arranged between a stator and a rotor, wherein the front spring group and the rear spring group are consistent in structure, the front spring group comprises two spring groups which are respectively arranged on two side walls of the rotor, and the spring groups are electrically connected with a first driving coil and an FPC (flexible printed circuit) board of the stator.

The utility model discloses a further set up to: a photographic apparatus is provided with the lens driving device.

The utility model discloses a further set up to: an electronic device is provided with the camera device.

To sum up, the utility model discloses following beneficial effect has: the first drive coil and the second drive magnet are connected to the rotor, or the first drive magnet and the second drive coil are selected to be connected to the rotor.

After the mover is driven to move by the first driving mechanism, the displacement change of the mover is accurately detected through the positions of the first Hall element and the first Hall magnet; meanwhile, the anti-shaking position of the rotor can be detected through the second Hall element and the second Hall magnet, the moving and anti-shaking precision of the motor is improved, and the product performance is effectively improved.

The front spring group and the rear spring group are identical in structure, the same structure is used, cost is effectively saved, and assembly is facilitated.

Drawings

FIG. 1 is an exploded view of example 1;

FIG. 2 is a sectional view of embodiment 1;

FIG. 3 is a first schematic view of embodiment 1 with the stator casing removed;

FIG. 4 is an enlarged view of section A of FIG. 3;

FIG. 5 is a second schematic view of embodiment 1 with the stator casing removed;

FIG. 6 is an exploded view of example 2;

FIG. 7 is a schematic view of embodiment 2 with the stator casing hidden;

fig. 8 is a schematic view of the first and second drive magnets and the second drive coil connected to the mover in embodiment 1.

1, a first drive magnet; 2. a first drive coil; 3. A first drive mechanism; 4. a second drive magnet; 5. a second drive coil; 6. a second drive mechanism; 7. a first Hall magnet; 8. a first Hall element; 9. a second Hall magnet; 10. a second Hall element; 11. the springs are grouped.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.

Example 1: as shown in fig. 1 to 5, the present invention provides a driving structure, which comprises a first driving mechanism 3 and a second driving mechanism 6 disposed between a stator and a mover, wherein the second driving mechanism 6 and an AF moving structure are respectively disposed on the upper and lower sides of the mover. In this embodiment, the first driving mechanisms 3 and the second driving mechanisms 6 are disposed in two sets and are symmetrically disposed with respect to the center line of the mover.

The first driving mechanism 3 and the second driving mechanism 6 are respectively arranged at two sides of the mover, the first driving mechanism 3 comprises a first driving magnet 1 and a first driving coil 2, and the second driving mechanism 6 comprises a second driving magnet 4 and a second driving coil 5. The N pole and S pole of the first driving magnet 1 are arranged along the moving direction of the mover; the second drive magnets 4 have their N and S poles arranged in a direction perpendicular to the moving direction of the mover. The first driving coil 2 and the second driving magnet 4 are connected with the rotor, and the first driving magnet 1 and the second driving coil 5 are fixed on the stator; alternatively, the first and

second drive magnets

1 and 5 may be connected to the mover (see fig. 8). In the embodiment, the first driving coil 2 and the second driving magnet 4 are connected to the rotor, and through the dislocation fixing mode, the situation of magnetic interference is effectively reduced when the rotor moves, the product performance is improved, and the thrust required for driving the rotor to move is reduced.

The first driving coil 2 is a printed coil, and the first driving coil 2 is fixed on an FPC board of the stator. The first driving coil 2 is a printed coil, which effectively reduces the volume of the entire motor.

In order to improve the AF movement and OIS anti-shake precision of the rotor, a first Hall assembly and a second Hall assembly are arranged between the rotor and the stator, and the first Hall assembly and the second Hall assembly are both arranged into two groups and are symmetrical relative to the center line of the rotor. The first Hall assembly comprises a first Hall magnet 7 and a first Hall element 8; the second Hall assembly comprises a second Hall magnet 9 and a second Hall element 10, and the first Hall magnet 7 and the second Hall magnet 9 are arranged on the lower side wall of the rotor. The first hall element 8 and the second hall element 10 are located right below the first hall magnet 7 and the second hall magnet 9, respectively, and are electrically connected to the FPC board. After the mover is driven to move by the first driving mechanism 3, the displacement change of the mover is accurately detected through the positions of the first Hall element 8 and the first Hall magnet 7; meanwhile, the anti-shake position of the rotor can be detected through the second Hall element 10 and the second Hall magnet 9, the moving and anti-shake precision of the motor is improved, and the product performance is effectively improved.

Example 2: a lens driving device has the driving structure as shown in the embodiment 1 in fig. 6 and 7, and a front spring set and a rear spring set are arranged between a stator and a rotor, the front spring set and the rear spring set are consistent in structure, and the front spring set and the rear spring set are arranged at the positions of the side walls of two ends of the rotor in the moving direction. And the front spring group or the rear spring group comprises two spring groups 11 respectively arranged at two side walls of the mover, namely the spring groups 11 are respectively close to two ends of the mover in the moving direction, and the spring groups 11 are electrically connected with the first driving coil 2 and the FPC board of the stator. The front spring group and the rear spring group are identical in structure, the same structure is used, cost is effectively saved, and assembly is facilitated.

Example 3: a photographic apparatus having the air-permeable driving apparatus described in embodiment 2.

Example 4: an electronic device having the camera according to embodiment 3.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the sake of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A driving structure comprises a first driving mechanism (3) and a second driving mechanism (6) which are arranged between a stator and a rotor,

the method is characterized in that: the first driving mechanism (3) and the second driving mechanism (6) are respectively arranged on two sides of the rotor, the first driving mechanism (3) comprises a first driving magnet (1) and a first driving coil (2), the second driving mechanism (6) comprises a second driving magnet (4) and a second driving coil (5), and the first driving coil (2) and the second driving magnet (4) are connected to the rotor or the first driving magnet (1) and the second driving coil (5) are connected to the rotor.

2. A drive arrangement according to claim 1, wherein: the first driving mechanisms (3) and the second driving mechanisms (6) are arranged in two groups and are symmetrically arranged relative to the center line of the rotor.

3. A drive arrangement according to claim 1, wherein: a first Hall assembly and a second Hall assembly are arranged between the rotor and the stator, and the first Hall assembly comprises a first Hall magnet (7) and a first Hall element (8); the second Hall assembly comprises a second Hall magnet (9) and a second Hall element (10), wherein the first Hall magnet (7) and the second Hall magnet (9) are both arranged on the rotor and are located on the same side wall of the rotor.

4. A drive arrangement according to claim 3, wherein: the first Hall element (8) and the second Hall element (10) are fixed on the FPC and electrically connected with the FPC.

5. A lens driving device characterized in that: the driving structure according to any one of claims 1 to 4, further comprising a front spring set and a rear spring set arranged between the stator and the mover, wherein the front spring set and the rear spring set are identical in structure, the front spring set comprises two spring groups (11) respectively arranged at two side walls of the mover, and the spring groups (11) are electrically connected with the first driving coil (2) and the FPC board of the stator.

6. A photographic apparatus, characterized in that: having a lens driving device as claimed in claim 5.

7. An electronic device, characterized in that: the camera device according to claim 6.