CN113595357A - Lens driving structure, camera device and electronic equipment - Google Patents
Lens driving structure, camera device and electronic equipment Download PDFInfo
- Publication number
- CN113595357A CN113595357A CN202110184069.4A CN202110184069A CN113595357A CN 113595357 A CN113595357 A CN 113595357A CN 202110184069 A CN202110184069 A CN 202110184069A CN 113595357 A CN113595357 A CN 113595357A
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- carrier
- base
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- glue
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- 239000003292 glue Substances 0.000 claims abstract description 56
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 55
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 13
- 239000012634 fragment Substances 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 5
- 229920000715 Mucilage Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a lens driving structure, which comprises a base, a carrier positioned in the base, an upper elastic sheet arranged at the top of the carrier, a coil arranged along the outer side surface of the carrier, and a magnet arranged outside the coil, wherein a detection magnet is arranged outside the coil; a reinforcing rib comprising an inner reinforcing structure and an outer reinforcing structure is arranged in the base; and a glue storage groove is formed at the joint of the carrier and the upper elastic sheet. According to the invention, the detection magnet and the chip are arranged on the outer side of the coil, so that the influence of the thickness of the coil on the distance between the detection magnet and the chip is eliminated, and the magnetic field intensity sensed by the detection magnet is ensured. The invention also arranges a glue storage groove at the joint of the upper spring plate and the carrier, so that redundant glue flows into the glue storage groove during gluing, thereby preventing the glue from overflowing and sticking the root of the spring plate to cause poor motor performance.
Description
Technical Field
The present invention relates to motors, and more particularly, to a lens driving structure, a camera device and an electronic apparatus.
Background
The detection magnets of the existing motor adopting closed-loop control are all arranged at the inner side of the coil, the chip is arranged at the outer side of the coil, and magnets at two sides or magnets at four sides are arranged at the outer side of the coil.
The magnet mounting structure has the following defects:
1. the distance between the detection magnet and the chip is influenced by the thickness of the coil, the larger the thickness of the coil is, the farther the distance between the detection magnet and the chip is, and the weaker the magnetic field intensity sensed by the detection magnet is.
2. When the magnets on the two sides are adopted due to the limited space, the thrust of the magnets is small.
It should be noted that, in order to enhance the structural strength of the existing motor, a single-ring structure of reinforcing ribs is disposed in the base. The existing base reinforcing structure has the defects that:
if the reinforcing ribs with the single-ring structure are arranged on the inner ring of the base, the outer ring of the base is easy to crack; if the reinforcing rib of the single-ring structure is arranged on the outer ring of the base, the inner ring of the base is easy to crack.
In addition, the last shell fragment setting of current motor is at the carrier top to bond through glue, owing to lack between last shell fragment and the carrier and store up glued structure, glue can overflow and glue the root of sticking last shell fragment, leads to the motor performance bad. In addition, the base of the existing motor is lack of a glue storage structure, so that glue is difficult to permeate, and the bonding strength of the base and the shell is small.
Disclosure of Invention
The present invention is directed to a lens driving structure, a camera device and an electronic apparatus, which overcome the above-mentioned problems.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a lens driving structure comprises a base, a carrier, an upper elastic sheet, a coil and a magnet, wherein the carrier is positioned in the base; a reinforcing rib comprising an inner reinforcing structure and an outer reinforcing structure is arranged in the base; and a glue storage groove is formed at the joint of the carrier and the upper elastic sheet.
Further, the base includes platelike main part, is equipped with a little glue stand respectively in platelike main part's corner position, is equipped with long installation position between the adjacent some glue stand, is equipped with a limiting plate respectively in a set of long installation position to the side, and the point of limiting plate and side is glued the stand and is constituted short installation position at long installation position.
Furthermore, the outer side of the dispensing upright post is provided with a stepped structure, a dispensing groove is formed below the stepped structure, and the shell is connected and fixed with the base through glue filled in the dispensing groove.
Furthermore, a carrier through hole is formed in the middle of the carrier, a plurality of inner connecting grooves are formed along the edge of the carrier through hole, and a plurality of outer connecting grooves are formed in the outer edge of the carrier;
the upper elastic sheet is fixedly connected with the carrier through glue filled in the inner side connecting groove and the outer side connecting groove;
the glue storage tank is positioned on the carrier at the side of the outer side connecting groove.
Furthermore, an annular groove is formed along the outer side surface of the carrier, a winding terminal is arranged on one side of the carrier, and an installation groove is formed in the other side of the carrier and is positioned on the outer side of the annular groove;
the coil is arranged in the annular groove of the carrier, and the end parts of the two ends of the coil are respectively wound on a winding terminal.
The detection magnet is arranged in the mounting groove.
Further, the magnetite sets up along the edge of base, and the magnetite includes long magnetite and short magnetite, and long magnetite sets up in long installation position, and short magnetite sets up in short installation position.
Furthermore, a chip groove is formed in a limiting plate on the outer side of the detection magnet, a limiting terminal is arranged on the outer side face of the limiting plate, and the flexible circuit board is connected with the limiting plate through the limiting terminal.
Furthermore, the inner reinforcing structure is arranged at the inner ring position of the base and is provided with a circular main body which is distributed along the inner ring of the base;
the outer reinforcement structure is arranged at the outer edge of the base and comprises a first reinforcement part and a second reinforcement part, and the first reinforcement part and the second reinforcement part are located at the outer ring position of the base.
A photographic device is provided with the lens driving structure.
An electronic device is provided with the camera device.
Compared with the prior art, the invention has the beneficial effects that:
1. through all setting up the outside at the coil with detecting magnetite and chip, saved the distance influence of coil thickness to detecting magnetite and chip, guaranteed the sensing magnetic field intensity that detects the magnetite.
2. Under the limited condition in space, can set up short installation position on the base to set up short magnetite in short installation position, thereby promoted thrust.
3. The reinforcing ribs with the inner and outer reinforcing structures are arranged in the base, so that the problem that the inner ring of the base is cracked due to the single outer ring reinforcing ribs or the outer ring is cracked due to the single inner ring reinforcing ribs in the prior art is effectively solved.
4. Through being equipped with the glue storage groove in the junction of last shell fragment and carrier, unnecessary glue flows into the glue storage groove during the mucilage binding in, prevents that glue from overflowing to glue the shell fragment root, leads to motor performance bad.
5. Through set up stair structure and some glue grooves in the point of the some glue stand department at the base, glue can be in the same direction as stair structure infiltration to the point between casing and the base and glue the groove during the mucilage binding, reinforcing bonding strength.
Drawings
Fig. 1 is a schematic diagram of a lens driving structure according to the present invention.
Fig. 2 is a schematic diagram of a lens driving structure (without a housing) according to the present invention.
Fig. 3 is a schematic view of a base according to the present invention.
FIG. 4 is a schematic representation of a vector according to the present invention.
FIG. 5 is a schematic representation of a vector according to the present invention.
Fig. 6 is a schematic view of the upper spring plate according to the present invention.
Fig. 7 is a schematic view of the carrier and the upper spring plate according to the present invention.
Fig. 8 is a schematic view of a coil according to the present invention.
FIG. 9 is a schematic view of a magnet according to the present invention.
Fig. 10 is a schematic view of a chip tray according to the present invention.
FIG. 11 is a schematic view of a detection magnet, a chip and a flexible circuit board according to the present invention.
Fig. 12 is a schematic view of the position of the reinforcing bar according to the present invention.
Fig. 13 is a schematic structural view of the reinforcing rib according to the present invention.
Fig. 14 is a schematic diagram of embodiment 2 of the present invention.
Fig. 15 is a schematic view of embodiment 3 of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 13, the lens driving structure according to the present invention includes a base (1), a carrier (2) located in the base (1), an upper spring (3) disposed on the top of the carrier (2), a coil (4) disposed along the outer side of the carrier (2), and a magnet (5) disposed outside the coil (4), wherein a detection magnet (6) is disposed outside the coil (3), and a chip (10) is disposed on the base (1) outside the detection magnet (6);
a reinforcing rib (7) comprising an inner reinforcing structure (71) and an outer reinforcing structure (72) is arranged in the base (1);
and a glue storage groove (24) is formed at the joint of the carrier (2) and the upper elastic sheet (3).
The base (1) comprises a plate-shaped main body (11), a glue dispensing stand column (12) is arranged at the corner position of the plate-shaped main body (11) respectively, a long mounting position (13) is arranged between the adjacent glue dispensing stand columns (12), a limiting plate (14) is arranged in the long mounting position (13) on the opposite side in a group respectively, and the limiting plate (14) and the glue dispensing stand column (12) on the side form a short mounting position (15) in the long mounting position (14).
The outer side of the dispensing upright post (12) is provided with a stepped structure (16), a dispensing groove (17) is formed below the stepped structure (16), and the shell (8) is connected and fixed with the base (1) through glue filled in the dispensing groove (17).
A carrier through hole (21) is formed in the middle of the carrier (2), a plurality of inner connecting grooves (22) are formed along the edge of the carrier through hole (21), and a plurality of outer connecting grooves (23) are formed in the outer edge of the carrier (2);
the upper elastic sheet (3) is fixedly connected with the carrier (2) through glue filled in the inner connecting groove (22) and the outer connecting groove (23);
the glue storage tank (24) is positioned on the carrier (2) at the side of the outer connecting groove (23).
An annular groove (25) is formed in the outer side face of the carrier (2), a winding terminal (26) is arranged on one side of the carrier (2), an installation groove (27) is formed in the other side of the carrier (2), and the installation groove (27) is located on the outer side of the annular groove (23);
the coil (4) is arranged in an annular groove (25) of the carrier (2), and the end parts of the two ends of the coil (3) are respectively wound on a winding terminal (26).
The detection magnet (6) is arranged in the mounting groove (27).
The magnet (5) is arranged along the edge of the base (1), the magnet (5) comprises a long magnet (51) and a short magnet (52), the long magnet (51) is arranged in the long mounting position (13), and the short magnet (52) is arranged in the short mounting position (15).
A chip groove (141) is formed in a limiting plate (14) on the outer side of the detection magnet (6), a chip (10) is arranged in the chip groove (141), a limiting terminal (142) is arranged on the outer side face of the limiting plate (14), the flexible circuit board (9) is connected with the limiting plate (14) through the limiting terminal (142), and the chip (10) is electrically connected with the flexible circuit board (9).
The inner reinforcing structure (71) is arranged at the inner ring position of the base (1), the inner reinforcing structure (71) is provided with a circular main body (711), and the circular main bodies (711) are distributed along the inner ring of the base (1);
the outer reinforcing structure (72) is arranged at the outer edge of the base (1), the outer reinforcing structure (72) comprises a first reinforcing part (721) and a second reinforcing part (722), and the first reinforcing part (721) and the second reinforcing part (722) are located at the outer ring position of the base (1).
Example 1
The embodiment discloses a lens driving structure, which comprises a base (1), a carrier (2), an upper elastic sheet (3), a coil (4), a magnet (5), a detection magnet (6), a chip (10), a shell (8) and a flexible circuit board (9).
The base (1) comprises a plate-shaped main body (11), a glue dispensing upright post (12) is arranged at each corner of the plate-shaped main body (11), a long mounting position (13) is arranged between the adjacent glue dispensing upright posts (12), a limiting plate (14) is arranged in each long mounting position (13) on one group of opposite sides, and the limiting plate (14) and the glue dispensing upright posts (12) on the sides form a short mounting position (15) in each long mounting position (14). The outer side of the dispensing upright post (12) is provided with a stepped structure (16), a dispensing groove (17) is formed below the stepped structure (16), and the shell (8) is connected and fixed with the base (1) through glue filled in the dispensing groove (17).
In the embodiment, the stepped structure (16) and the glue dispensing groove (17) are arranged at the glue dispensing upright column (12) of the base (1), so that glue can penetrate into the glue dispensing groove (17) between the shell (8) and the base (1) along the stepped structure (16) during glue assembly, and the bonding strength is enhanced.
The magnet (5) is arranged along the edge of the base (1), the magnet (5) comprises a long magnet (51) and a short magnet (52), the long magnet (51) is arranged in the long mounting position (13), and the short magnet (52) is arranged in the short mounting position (15).
In the case of limited space, the thrust is improved by arranging the short mounting position (15) on the base (1) and arranging the short magnet (52) in the short mounting position (15).
A carrier through hole (21) is formed in the middle of the carrier (2), a plurality of inner connecting grooves (22) are formed along the edge of the carrier through hole (21), and a plurality of outer connecting grooves (23) are formed in the outer edge of the carrier (2); the upper elastic sheet (3) is fixedly connected with the carrier (2) through glue filled in the inner connecting groove (22) and the outer connecting groove (23); the glue storage tank (24) is positioned on the carrier (2) at the side of the outer connecting groove (23).
This embodiment is through setting up glue storage groove (24) in the junction of last shell fragment (3) and carrier (2), and surplus glue flows into in glue storage groove (24) during the mucilage binding, prevents that glue from overflowing to glue and glues the root of going up shell fragment (3) and the motor performance that leads to bad.
An annular groove (25) is formed in the outer side face of the carrier (2), a winding terminal (26) is arranged on one side of the carrier (2), an installation groove (27) is formed in the other side of the carrier (2), and the installation groove (27) is located on the outer side of the annular groove (23); the coil (4) is arranged in an annular groove (25) of the carrier (2), and the end parts of the two ends of the coil (3) are respectively wound on a winding terminal (26). The detection magnet (6) is arranged in the mounting groove (27).
A chip groove (141) is formed in a limiting plate (14) on the outer side of the detection magnet (6), a chip (10) is arranged in the chip groove (141), a limiting terminal (142) is arranged on the outer side face of the limiting plate (14), the flexible circuit board (9) is connected with the limiting plate (14) through the limiting terminal (142), and the chip (10) is electrically connected with the flexible circuit board (9).
This embodiment is through all setting up the outside at coil (3) with detecting magnetite (6) and chip (10), has saved coil (3) thickness to the distance influence that detects magnetite (6) and chip (10), has guaranteed the sensing magnetic field intensity that detects magnetite (6).
A reinforcing rib (7) comprising an inner reinforcing structure (71) and an outer reinforcing structure (72) is arranged in the base (1);
the inner reinforcing structure (71) is arranged at the inner ring position of the base (1), the inner reinforcing structure (71) is provided with a circular main body (711), and the circular main bodies (711) are distributed along the inner ring of the base (1);
the outer reinforcing structure (72) is arranged at the outer edge of the base (1), the outer reinforcing structure (72) comprises a first reinforcing part (721) and a second reinforcing part (722), and the first reinforcing part (721) and the second reinforcing part (722) are located at the outer ring position of the base (1).
The embodiment effectively solves the problems that the inner ring of the base is cracked due to the single outer ring reinforcing ribs or the outer ring is cracked due to the single inner ring reinforcing ribs in the prior art by arranging the reinforcing ribs (7) with the inner and outer reinforcing structures in the base (1).
Example 2
A photographic apparatus having the lens driving structure as described in example 1. In the present embodiment, other structures of the camera device are the same as those of the prior art, and therefore, will not be described in detail herein.
Example 3
An electronic device having the photographic apparatus as described in embodiment 2. In the present embodiment, other structures of the electronic device are the same as those of the prior art, and therefore, detailed description thereof is omitted.
In the above embodiments, 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, only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A lens driving structure comprises a base (1),
a carrier (2) located within the base (1),
an upper spring plate (3) arranged on the top of the carrier (2),
a coil (4) arranged along the outer side surface of the carrier (2),
a magnet (5) disposed outside the coil (4),
the method is characterized in that: the outer side of the coil (3) is provided with a mounting groove (27) for mounting a detection magnet (6);
a reinforcing rib (7) comprising an inner reinforcing structure (71) and an outer reinforcing structure (72) is arranged in the base (1);
and a glue storage groove (24) is formed at the joint of the carrier (2) and the upper elastic sheet (3).
2. The lens driving structure according to claim 1, wherein: the base (1) comprises a plate-shaped main body (11), a glue dispensing stand column (12) is arranged at the corner position of the plate-shaped main body (11) respectively, a long mounting position (13) is arranged between the adjacent glue dispensing stand columns (12), a limiting plate (14) is arranged in the long mounting position (13) on the opposite side respectively, and the limiting plate (14) and the glue dispensing stand column (12) on the side form a short mounting position (15) in the long mounting position (14).
3. The lens driving structure according to claim 2, wherein: the outer side of the dispensing upright post (12) is provided with a stepped structure (16), a dispensing groove (17) is formed below the stepped structure (16), and the shell (8) is connected and fixed with the base (1) through glue filled in the dispensing groove (17).
4. The lens driving structure according to claim 1, wherein: a carrier through hole (21) is formed in the middle of the carrier (2), a plurality of inner connecting grooves (22) are formed along the edge of the carrier through hole (21), and a plurality of outer connecting grooves (23) are formed in the outer edge of the carrier (2);
the upper elastic sheet (3) is fixedly connected with the carrier (2) through glue filled in the inner connecting groove (22) and the outer connecting groove (23);
the glue storage tank (24) is positioned on the carrier (2) at the side of the outer connecting groove (23).
5. The lens driving structure according to claim 4, wherein: an annular groove (25) is formed in the outer side face of the carrier (2), a winding terminal (26) is arranged on one side of the carrier (2), an installation groove (27) is formed in the other side of the carrier (2), and the installation groove (27) is located on the outer side of the annular groove (23);
the coil (4) is arranged in an annular groove (25) of the carrier (2), and the end parts of the two ends of the coil (3) are respectively wound on a winding terminal (26).
The detection magnet (6) is arranged in the mounting groove (27).
6. The lens driving structure according to claim 2, wherein: the magnets (5) are arranged along the edge of the base (1).
7. The lens driving structure according to claim 1, wherein: a chip groove (141) is formed in a limiting plate (14) on the outer side of the detection magnet (6), a limiting terminal (142) is arranged on the outer side face of the limiting plate (14), and the flexible circuit board (9) is connected with the limiting plate (14) through the limiting terminal (142).
8. The lens driving structure according to claim 1, wherein: the inner reinforcing structure (71) is arranged at the inner ring position of the base (1), the inner reinforcing structure (71) is provided with a circular main body (711), and the circular main bodies (711) are distributed along the inner ring of the base (1);
the outer reinforcing structure (72) is arranged at the outer edge of the base (1), the outer reinforcing structure (72) comprises a first reinforcing part (721) and a second reinforcing part (722), and the first reinforcing part (721) and the second reinforcing part (722) are located at the outer ring position of the base (1).
9. A photographic apparatus, characterized in that: having a lens driving arrangement according to any of claims 1-7.
10. An electronic device, characterized in that: having the camera device of claim 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020113489539 | 2020-11-26 | ||
| CN202011348953.9A CN112332631A (en) | 2020-11-26 | 2020-11-26 | Lens driving structure, camera device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113595357A true CN113595357A (en) | 2021-11-02 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011348953.9A Withdrawn CN112332631A (en) | 2020-11-26 | 2020-11-26 | Lens driving structure, camera device and electronic equipment |
| CN202110184069.4A Pending CN113595357A (en) | 2020-11-26 | 2021-02-10 | Lens driving structure, camera device and electronic equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011348953.9A Withdrawn CN112332631A (en) | 2020-11-26 | 2020-11-26 | Lens driving structure, camera device and electronic equipment |
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| Country | Link |
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| CN (2) | CN112332631A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050246B (en) * | 2021-03-12 | 2023-06-09 | 新思考电机有限公司 | Base coupling assembling, drive arrangement, module and electronic equipment make a video recording |
| CN112928889B (en) * | 2021-03-22 | 2022-06-10 | 新思考电机有限公司 | Driving device, camera module and electronic equipment |
| CN114157789B (en) * | 2021-11-30 | 2023-12-05 | 新思考电机有限公司 | Lens driving assembly, camera module and electronic equipment |
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- 2020-11-26 CN CN202011348953.9A patent/CN112332631A/en not_active Withdrawn
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| CN210724528U (en) * | 2019-08-15 | 2020-06-09 | 河南皓泽电子股份有限公司 | Multi-magnet square coil closed-loop motor |
| CN110764335A (en) * | 2019-10-31 | 2020-02-07 | 上海比路电子股份有限公司 | Lens driving motor, camera and mobile terminal |
| CN111025519A (en) * | 2019-12-11 | 2020-04-17 | 上海比路电子股份有限公司 | Lens driving motor, camera and mobile terminal |
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| CN112332631A (en) | 2021-02-05 |
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