CN220509197U - Periscope type lens driving mechanism - Google Patents
Periscope type lens driving mechanism Download PDFInfo
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- CN220509197U CN220509197U CN202321357383.9U CN202321357383U CN220509197U CN 220509197 U CN220509197 U CN 220509197U CN 202321357383 U CN202321357383 U CN 202321357383U CN 220509197 U CN220509197 U CN 220509197U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 46
- 239000000969 carrier Substances 0.000 claims abstract description 6
- 244000273256 Phragmites communis Species 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
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Abstract
The utility model discloses a periscope type lens driving mechanism which comprises a base, a carrier, a first elastic piece and a second elastic piece, wherein the base comprises a bottom plate, two side plates and a magnet group, the two side plates are connected with the top surface of the bottom plate and are positioned on two sides of the bottom plate along a first direction, the magnet group is connected with the inner side of any one side plate, the polarities of the magnet group are distributed along the optical axis direction of a lens, a groove is formed in the inner side of the magnet group, and the groove extends along a second direction. The carrier is suspended above the bottom plate and positioned between the two side plates, and is provided with a lens mounting hole for mounting a lens, and the lens mounting hole extends along the optical axis direction; the outer sides of the carriers along the first direction are respectively provided with a coil group, and the coil groups are arranged opposite to the magnet groups along the first direction and can be matched with the magnet groups to drive the carriers to move along the optical axis direction. The first elastic piece is connected with the front sides of the two side plates and the carrier, and the second elastic piece is connected with the rear sides of the two side plates and the carrier.
Description
Technical Field
The utility model relates to the field of optical imaging, in particular to a periscope type lens driving mechanism.
Background
Some electronic devices with camera or video functions are provided with a lens driving module to drive an optical component such as a lens to move, thereby achieving the functions of auto focus (auto focus) and optical anti-shake (OpticalImageStabilization, OIS). Light can be imaged on a photosensitive element through the optical element.
The periscope lens structure can be used for achieving focusing and hand shake preventing effects and generally comprises two parts, namely a periscope part and a prism part, wherein the prism part is arranged at the front end of the periscope part along the optical axis direction, and an imaging chip is arranged at the rear end of the periscope part. Light is reflected through the prism part and enters the periscope part, the periscope part comprises an AF part and an OIS part, the AF part is responsible for performing an optical zooming function, the OIS part is responsible for an anti-shake function, but the OIS part of the periscope part is only responsible for the anti-shake function along the direction vertical to the optical axis, and the OIS of the prism part is responsible for the anti-shake function along the direction vertical to the optical axis.
Currently, in order to realize a lightweight device for an electronic device, there is a need to continuously reduce the volume and weight of a periscope lens mechanism, but there is a need to ensure a sufficient driving force for the lens. Therefore, in order to use the market demand, it is necessary to develop more lens driving structures with larger driving forces.
Disclosure of Invention
The utility model aims to provide a periscope type lens driving mechanism which has a large driving force.
In order to solve the above technical problems, an embodiment of the present utility model provides a periscope type lens driving mechanism, including:
a base, the base comprising:
a bottom plate;
the two side plates are connected with the top surface of the bottom plate and positioned at two sides of the bottom plate along the first direction; and
the magnet group is connected with the inner side of any side plate, the polarities of the magnet group are distributed along the optical axis direction of the lens, grooves are formed in the inner side of the magnet group and extend along the second direction, and the optical axis direction, the first direction and the second direction are perpendicular to each other;
the carrier is suspended above the bottom plate and positioned between the two side plates, and is provided with a lens mounting hole for mounting a lens, and the lens mounting hole extends along the optical axis direction; the outer sides of the carriers along the first direction are respectively provided with a coil group, and the coil groups are arranged opposite to the magnet groups along the first direction and matched with the magnet groups to drive the carriers to move along the optical axis direction;
a first elastic member having elasticity and located at front sides of the two side plates and the carrier in the optical axis direction, the first elastic member being connected with front sides of the two side plates and the carrier;
the second elastic piece is elastic and is positioned at the rear sides of the two side plates and the carrier along the optical axis direction, and the second elastic piece is connected with the rear sides of the two side plates and the carrier; the second elastic piece and the first elastic piece are matched to drive the carrier to reset.
In one embodiment, two magnet groups are respectively connected with the inner sides of the two side plates;
the carrier is provided with coil groups along two sides of the first direction respectively, and the two coil groups are arranged opposite to the two magnet groups along the first direction respectively.
In one embodiment, at least one of the magnet groups includes a plurality of magnets arranged along the optical axis direction, two adjacent magnets attract each other, and the groove is disposed at a middle position of at least one of the magnets along the optical axis direction.
In one embodiment, a plurality of the magnets are provided with the grooves, respectively.
In one embodiment, the two magnet groups each include a plurality of the magnets.
In one embodiment, a plurality of magnets of two magnet groups are respectively provided with the grooves.
In one embodiment, the recess extends through the set of magnets in the second direction.
In one embodiment, the base is provided with an internal circuit, and the coil assembly is electrically connected to the internal circuit.
In one embodiment, the built-in circuit is electrically connected to the second elastic member, and the second elastic member is electrically connected to the coil assembly.
In one embodiment, the device further comprises a housing covering the exterior of the carrier, the first elastic member and the second elastic member and connected with the bottom plate.
The grooves are formed in the magnet group, so that the weight of the magnet group can be reduced, the Lorentz force of the magnet group and the coil group can be improved, the driving force on the carrier can be enhanced, and even if the size of the magnet group is reduced, the magnet group can be matched with the coil group to generate enough driving force so as to meet the market demand.
Drawings
Fig. 1 is an exploded view of a periscope type lens driving mechanism according to an embodiment of the present utility model.
FIG. 2 is a front view of the periscope type lens driving mechanism of the embodiment of FIG. 1, showing the carrier, the base, the first elastic member and the second elastic member assembled.
FIG. 3 is a rear view of the periscope type lens driving mechanism of the embodiment of FIG. 1 showing the carrier, base, first elastic member and second elastic member assembled.
FIG. 4 is a top view of the periscope type lens driving mechanism of the embodiment of FIG. 1 showing the carrier, the base, the first elastic member and the second elastic member assembled.
Fig. 5 is a schematic view of a magnet assembly and a coil assembly according to an embodiment of the present utility model.
Reference numerals: 100. periscope type lens driving mechanism; 1. a base; 11. a bottom plate; 12. a side plate; 13. a built-in circuit; 14. a magnet group; 141. a magnet; 15. a groove; 16. magnetic field lines; 17. a polarizing region; 2. a carrier; 21. a coil assembly; 22. a lens mounting hole; 3. a first elastic member; 4. a second elastic member; 5. a housing; 51. a light shielding hole;
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be realized without these technical details and various changes and modifications based on the following embodiments.
Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.
The following detailed description of various embodiments of the present utility model will be provided in connection with the accompanying drawings to provide a clearer understanding of the objects, features and advantages of the present utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.
In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present utility model, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.
The periscope part of the periscope type lens structure is also called a periscope type lens driving mechanism 100, and as shown in fig. 1, the periscope type lens driving mechanism 100 comprises a base 1, a carrier 2, a first elastic member 3, a second elastic member 4 and a shell 5, wherein the base 1 is used for supporting the carrier 2 and the shell 5, and a bottom plate 11 is also generally directly connected to external electronic equipment. The carrier 2 is used for installing the lens and driving the lens to move along the optical axis direction so as to realize a focusing function. The first elastic member 3 and the second elastic member 4 are used for driving the carrier 2 to return. The housing 5 is used for preventing external foreign matters from entering the lens, causing dislocation or damage of the lens and affecting shooting.
Specifically, as shown in fig. 1 and 2, the base 1 includes a bottom plate 11 and two side plates 12, the bottom plate 11 being substantially rectangular plate-like, the two side plates 12 being connected to both sides of the bottom plate 11 in the first direction X and being located on the top surface of the bottom plate 11. The base 1 is also provided with an internal circuit 13, which internal circuit 13 is electrically connectable to an external power source and extends from the base plate 11 to two side plates 12, through which two side plates 12 the coil assembly 21 of the carrier 2 can be energized, as will be described in more detail below.
The two side plates 12 are further provided with a magnet group 14 respectively along the inner side of the first direction X, the magnet group 14 includes two magnets 141 arranged along the optical axis direction, the polarities of each magnet 141 are distributed along the optical axis direction, and the two magnets 141 are attracted to each other, i.e. the N pole and the S pole of each magnet 141 are located at two sides of the magnet 141 along the optical axis direction, and the arrangement modes of the N pole and the S pole of the two magnets 141 are the same, and the adjacent side parts are attracted to each other. Further, each of the magnets 141 is provided with a groove 15, which groove 15 is concavely formed by the inner side surface of the magnet 141 and is located at the middle portion of the magnet 141 in the optical axis direction. Further, the recess 15 preferably penetrates the magnet 141 in the second direction Y.
The second direction Y, the first direction X, and the optical axis direction Z are perpendicular to each other, and in the embodiment shown in fig. 1, the second direction Y is a vertical direction, and the first direction X and the optical axis direction Z are both horizontal directions.
The carrier 2 is located above the bottom plate 11 and is disposed at a distance from the bottom plate 11, the carrier 2 is located between the two side plates 12 and is provided with a lens mounting hole 22, and the lens mounting hole 22 extends in the optical axis direction and penetrates the carrier 2 in the optical axis direction. The carrier 2 can move along the optical axis direction between the two side plates 12, and the carrier 2 can drive the lens to move along the optical axis direction when moving along the optical axis direction, so as to adjust the focal length of the lens.
The two sides of the carrier 2 along the first direction X are also respectively provided with a coil group 21, the two coil groups 21 are respectively positioned at the outer sides of the carrier 2 along the first direction X and are opposite to the two magnet groups 14 along the first direction X, and the two coil groups 21 can be matched with the two magnet groups 14 after being electrified to drive the carrier 2 to move along the optical axis direction.
Specifically, as shown in fig. 5, the magnetic field lines of the two magnets 141 of the magnet group 14 pass through the coil group 21 opposite to the magnet group 14 from the N pole of one of the magnets 141 to the S pole of the other magnet 141, and since each of the magnets 141 is provided with the grooves 15, respectively, the vicinity of the grooves 15 of each of the magnets 141 is also provided with the polarized regions 17, so that the N pole and the S pole of the magnet 141 on both sides in the optical axis direction also form the magnetic field lines 16 with the S pole and the N pole in the vicinity of the grooves 15, and the increased magnetic field lines 16 also pass through the coil group 21 opposite thereto, thereby increasing the magnetic flux and lorentz force of the magnet group 14 and the coil group 21, improving the force for driving the carrier 2, and increasing the driving force of the carrier 2 without increasing the overall weight.
Alternatively, only one magnet group 14 of the two magnet groups 14 may be provided with the groove 15, and the other magnet group 14 may not be provided with the groove 15, or one magnet group 14 of the two magnet groups 14 may include a plurality of magnets 141, and at least one of the plurality of magnets 141 may be provided with the groove 15. The other magnet group 14 has only one magnet 141, and the magnet 141 may be provided with the groove 15 or may not be provided with the groove 15. Or the two magnet groups 14 respectively include a plurality of magnets 141, the plurality of magnets 141 are arranged along the optical axis direction and the two adjacent magnets 141 are attracted, at least one magnet 141 in the two magnet groups 14 is provided with the groove 15, or the plurality of magnets 141 in the two magnet groups 14 are all provided with the groove 15, so that the number of the grooves 15 can be increased according to actual requirements, and the lorentz force of the coil group 21 can be increased.
Alternatively, a magnet group 14 may be disposed on the side plate 12 of the base 1, where the magnet group 14 may be connected to any one side plate 12 of the two side plates 12, and the magnet group 14 may include a plurality of magnets 141, where the plurality of magnets 141 are aligned along the optical axis direction and two adjacent magnets 141 attract each other, and at least one of the magnets 141 is provided with the groove 15 described above. The outer side of the carrier 2 may be provided with only one coil group 21, and the coil group 21 may be provided opposite to the magnet group 14 in the first direction X and may drive the carrier 2 to move in the optical axis direction Z.
The first elastic member 3 and the second elastic member 4 can drive the carrier 2 to return, specifically, the first elastic member 3 and the second elastic member 4 are respectively formed by spring wires with elasticity, and the shapes of the first elastic member 3 and the second elastic member 4 are not limited as long as the first elastic member 3 and the second elastic member have elasticity and can adapt to requirements. As shown in fig. 3 and 4, the first elastic member 3 is located at the front side and the rear side of the carrier 2 in the optical axis direction Z, wherein the first elastic member 3 is connected with the front side of the side plate 12 and the front side of the carrier 2, and the second elastic member 4 is located at the rear side of the carrier 2 and connected with the rear side of the carrier 2 and the rear side of the side plate 12. When the carrier 2 moves along the optical axis direction, the first elastic member 3 and the second elastic member 4 are stretched, and the carrier 2 is reset by the reverse acting force of the first elastic member 3 and the second elastic member 4 on the carrier 2.
The base 1 is provided with a built-in circuit 13, and the built-in circuit 13 can be electrically connected with an external power supply and energize the coil assembly 21. In the embodiment shown in the figures, the second elastic member 4 is electrically conductive and electrically connected to the built-in circuit 13 and the two coil sets 21, respectively, and the power source is electrically connected to the two coil sets 21 from the built-in circuit 13 and the first elastic member 3, respectively. Of course, in order to form a loop, the second elastic member 4 may be provided as a plurality of insulating reeds, wherein one end of each of the two reeds is electrically connected to both ends of one of the coil groups 21, and the other end is electrically connected to the built-in circuit 13. One end of the other two reeds is electrically connected to both ends of the other coil group 21, and the other end is electrically connected to the built-in circuit 13.
The casing 5 is a substantially rectangular casing and covers the carrier 2, the first elastic member 3 and the second elastic member 4, the bottom of the casing 5 is connected with the bottom plate 11, and the front side and the rear side of the casing 5 along the optical axis direction are respectively provided with a light shielding hole 51 for avoiding light entering the lens and projecting to the imaging chip.
The grooves 15 are formed in the magnet group 14, so that the weight of the magnet group 14 can be reduced, the Lorentz force of the magnet group 14 and the coil group 21 can be improved, the driving force on the carrier 2 can be enhanced, and even if the size of the magnet group 14 is reduced, the magnet group can be matched with the coil group 21 to generate enough driving force so as to meet market demands.
While the preferred embodiments of the present utility model have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.
These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.
Claims (10)
1. A periscope type lens driving mechanism, comprising:
a base, the base comprising:
a bottom plate;
the two side plates are connected with the top surface of the bottom plate and positioned at two sides of the bottom plate along the first direction; and
the magnet group is connected with the inner side of any side plate, the polarities of the magnet group are distributed along the optical axis direction of the lens, grooves are formed in the inner side of the magnet group and extend along the second direction, and the optical axis direction, the first direction and the second direction are perpendicular to each other;
the carrier is suspended above the bottom plate and positioned between the two side plates, and is provided with a lens mounting hole for mounting a lens, and the lens mounting hole extends along the optical axis direction; the outer sides of the carriers along the first direction are respectively provided with a coil group, and the coil groups are arranged opposite to the magnet groups along the first direction and matched with the magnet groups to drive the carriers to move along the optical axis direction;
a first elastic member having elasticity and located at front sides of the two side plates and the carrier in the optical axis direction, the first elastic member being connected with front sides of the two side plates and the carrier;
the second elastic piece is elastic and is positioned at the rear sides of the two side plates and the carrier along the optical axis direction, and the second elastic piece is connected with the rear sides of the two side plates and the carrier; the second elastic piece and the first elastic piece are matched to drive the carrier to reset.
2. The periscopic lens driving mechanism of claim 1 wherein two magnet sets are respectively connected with the inner sides of the two side plates;
the carrier is provided with coil groups along two sides of the first direction respectively, and the two coil groups are arranged opposite to the two magnet groups along the first direction respectively.
3. The periscope type lens driving mechanism according to claim 2, wherein at least one magnet group includes a plurality of magnets arranged along the optical axis direction, two adjacent magnets attract each other, and the groove is provided at a middle position of at least one of the magnets along the optical axis direction.
4. The periscopic lens drive mechanism of claim 2 wherein a plurality of the magnets are each provided with the recess.
5. The periscopic lens drive mechanism of claim 2 wherein two of the magnet sets each comprise a plurality of the magnets.
6. The periscopic lens drive mechanism of claim 4 wherein the plurality of magnets of both magnet sets are each provided with the recess.
7. The periscope type lens driving mechanism according to claim 1, wherein the groove penetrates through the magnet group along the second direction.
8. The periscope type lens driving mechanism according to claim 1, wherein the base is provided with a built-in circuit, and the coil group is electrically connected with the built-in circuit.
9. The periscope type lens driving mechanism according to claim 8, wherein the built-in circuit is electrically connected with the second elastic member, and the second elastic member is electrically connected with the coil block.
10. The periscope type lens driving mechanism according to claim 1, further comprising a housing covering the outside of the carrier, the first elastic member and the second elastic member and connected with the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321357383.9U CN220509197U (en) | 2023-05-31 | 2023-05-31 | Periscope type lens driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321357383.9U CN220509197U (en) | 2023-05-31 | 2023-05-31 | Periscope type lens driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220509197U true CN220509197U (en) | 2024-02-20 |
Family
ID=89870707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321357383.9U Active CN220509197U (en) | 2023-05-31 | 2023-05-31 | Periscope type lens driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220509197U (en) |
-
2023
- 2023-05-31 CN CN202321357383.9U patent/CN220509197U/en active Active
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