CN107329350B - Camera lens driving device - Google Patents
Camera lens driving device Download PDFInfo
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- CN107329350B CN107329350B CN201710731115.1A CN201710731115A CN107329350B CN 107329350 B CN107329350 B CN 107329350B CN 201710731115 A CN201710731115 A CN 201710731115A CN 107329350 B CN107329350 B CN 107329350B
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- spring wire
- wire
- spring
- coil
- support body
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- 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
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
Abstract
The invention discloses a camera lens driving device, which is assembled by an iron shell 1, an upper spring, four magnets, a coil, a lens support body, a lower spring and a lower cover, wherein two wire hanging columns are arranged on the outer periphery of the lens support body of the driving device, and are respectively a wire starting wire hanging column used for winding a coil starting wire and a wire ending wire hanging column used for winding a coil ending wire. The inner peripheral surface of the lens supporting body of the winding coil is provided with a plurality of impact-resistant edges, so that the impact resistance of the lens driving device is effectively improved. The lower spring of the driving device is additionally provided with a choke groove in a semi-enclosing state at the periphery of the spot welding hole, and during the assembly process, solder paste is added into the spot welding hole to electrically connect the lower spring with the coil, and meanwhile, the choke groove semi-enclosing the spot welding hole is arranged on the lower spring, so that the choke groove can absorb the excessive and overflowed part even under the condition of adding more solder paste, and the safety of the solder quality of the solder paste is ensured.
Description
Technical Field
The present invention relates to the field of lens driving devices, and more particularly, to a lens driving device for a camera, and more particularly, to a mechanical connection structure thereof.
Background
A lens driving device for an auto-focus camera mounted on a mobile terminal device such as a mobile phone is generally: a lens support body supporting the lens on an inner periphery; a coil body disposed on the outer periphery of the lens support body; a spring for elastically supporting the lens support body; a plurality of magnets are arranged around the inner side of the ring opening at a certain interval ratio and are arranged opposite to the coil body. The coil is electrified, and the magnet interacts with the coil to generate electromagnetic force to drive the lens support body to move towards the direction of the optical axis and stay at a position balanced with the elastic force of the spring. The lens support body is driven to move to the appointed target position through the control of coil current, so that the focusing purpose is achieved.
However, in the conventional lens driving apparatus, the lower spring is easily deformed during the actual operation, such as the welding and electrical connection of the coil start and end wires with the lower spring, and the lens support is also welded, which may cause various performance and appearance defects. The invention aims at the problems, and through redesigning and improving the structure and the assembly mode of the parts forming the lens driving device, the common problems in the conventional design are subjected to breakthrough adjustment and overcoming, so that the product performance and the structure of the lens driving device are finally greatly optimized.
Disclosure of Invention
The present invention provides a lens driving device with shock resistance, which is superior to the prior art in performance and structure by redesigning and improving the structure and assembly mode of the components constituting the lens driving device. Overcomes the defects and shortcomings existing in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a lens driving device for a camera, the lens driving device being assembled by an iron case 1, an upper spring 2, four magnets 3, a coil 4, a lens support 5, a lower spring 6, and a lower cover 7, wherein:
the coil 4 is assembled outside the lens support 5, the upper spring 2 is arranged in the iron shell 1, four corners below the upper spring 2 are respectively provided with a magnet 3, the magnets 3 are positioned at the upper part of the lens support 5, the lower spring 6 is assembled between the lens support 5 and the lower cover 7, and the upper spring 2, the four magnets 3, the coil 4, the lens support 5 and the lower spring 6 are all arranged in the iron shell 1;
the lens support body 5 is used for supporting a lens, the whole lens support body 5 is of a flat cylindrical structure, the inner cavity of the lens support body 5 is hollow, the cross section of the cavity is circular, the inner cavity of the lens support body 5 is used for carrying the lens and moves back and forth along the optical axis direction together with the lens, a flange 501 is formed on the outer wall of the lens support body 5, the flange 501 is formed by sequentially connecting and enclosing a plurality of edges end to end, a starting line hanging column 502 is arranged on one edge, a finishing line hanging column 503 is arranged on the other edge, a plurality of protruding A positioning columns 504 are arranged on the bottom surface of the flange 501, a plurality of sections of protruding winding parts 505 are formed at the outer wall of the lens support body 5 at the upper part of the flange 501, and a plurality of protruding shock-resistant edges 506 are distributed on the outer wall of the winding parts 505;
the whole lower spring is approximately quadrilateral, four vertex angle positions are formed, four vertex angle positions of the lower spring 6 are respectively provided with an elastic buffer zone substrate 601, two symmetrically distributed hot riveting positioning holes 602 are formed in the elastic buffer zone substrate 601, a strip-shaped dispensing groove 603 is formed between the two hot riveting positioning holes 602, a bonding pad positioning hole 604 is formed in the elastic buffer zone substrate 601, the lower edge of the elastic buffer zone substrate 601 is connected with one end of a buffer zone spring wire 605, the other end of the buffer zone spring wire 605 is connected with one end of an outer spring wire 606, the other end of the outer spring wire 606 is connected with one end of an inner spring wire 608 through a positioning substrate 607, the other end of the inner spring wire 608 is connected with the other end of an adjacent vertex angle position through a section of buffer zone spring wire 608, the outer spring wire 606 is encircling a section of inner spring wire 608, a non-equidistant gap 609 is formed between the two parts, an A positioning hole 610 is formed in the position, the A positioning hole 610 is matched with the A positioning post 607, a spot welding groove 612 is formed in the position of the inner spring wire 608, and a spot welding groove 611 is formed around the surface of the inner spring wire 608.
The invention discloses a camera lens driving device, wherein the outer peripheral surface of a lens support body of the driving device is provided with two wire hanging columns, namely a wire hanging column for starting a wire of a winding coil and a wire hanging column for ending the wire of the winding coil. The inner peripheral surface of the lens supporting body of the winding coil is provided with a plurality of impact-resistant edges, so that the impact resistance of the lens driving device is effectively improved. The lower spring of the driving device is additionally provided with a choke groove in a semi-enclosing state at the periphery of the spot welding hole, and during the assembly process, solder paste is added into the spot welding hole to electrically connect the lower spring with the coil, and meanwhile, the choke groove semi-enclosing the spot welding hole is arranged on the lower spring, so that the choke groove can absorb the excessive and overflowed part even under the condition of adding more solder paste, and the safety of the solder quality of the solder paste is ensured. The hot riveting positioning hole of the lower spring can be nested and matched with the hot riveting positioning column of the lower cover of the lens driving device. The 4 corner sides of the lower spring are respectively provided with a dispensing groove for increasing the adhesive strength, and the lens driving device with good shock resistance is provided.
Drawings
Fig. 1 is a schematic structural view of a lens driving device according to the present invention.
Fig. 2 is a general assembly view of the lens driving apparatus of the present invention.
Fig. 3 is a schematic structural view of a lens support according to the present invention.
Fig. 4 is a bottom view of the inventive lens support.
Fig. 5 is a schematic diagram of a coil structure according to the present invention.
FIG. 6 is a schematic view of the lower spring structure of the present invention.
Fig. 7 is a schematic view of the internal structure of the lower cover of the present invention.
Fig. 8 is a schematic view of the outer structure of the lower cover of the present invention.
Fig. 9 is a schematic diagram showing an assembled state of the lens support body and the coil according to the present invention.
Fig. 10 is a schematic view showing an assembled state of the lower spring, the lens support body and the coil according to the present invention.
Fig. 11 is a schematic view showing an assembled state of the coil, the lens support body, the lower spring and the lower cover according to the present invention.
Wherein:
1. an iron shell;
2. a spring is arranged;
3. four magnets;
4. a coil;
5. a lens support;
6. a lower spring;
7. a lower cover;
101. sinking the end face;
401. coil starting line;
402. coil end line;
501. a flange;
502. starting a wire hanging column;
503. a terminal line hanging column;
504. a, positioning columns;
505. a winding part;
506. impact-resistant ribs;
507. a first concave portion;
508. a second concave portion;
509. the inner wall of the circular cavity;
601. an elastic buffer substrate;
602. hot riveting the positioning holes;
603. a dispensing groove;
604. a bonding pad positioning hole;
605. spring wire in buffer area;
606. an outer spring wire;
607. positioning a substrate;
608. an inner spring wire;
609. a gap portion;
610. a positioning holes;
611. spot welding the substrate;
612. spot welding holes;
613. a flow blocking groove;
6051. a starting reed;
6052. a reed bending part;
6053. a first buffer area spring wire;
6054. a first roundabout portion spring wire;
6055. a second buffer area spring wire;
6056. a second roundabout portion spring wire;
701. a bonding pad;
702. hot riveting a positioning column;
703. a dust-proof ring.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The invention discloses a camera lens driving device, which is different from the prior art in that: the lens driving device is formed by assembling an iron shell 1, an upper spring 2, four magnets 3, a coil 4, a lens supporting body 5, a lower spring 6 and a lower cover 7, wherein:
the coil 4 is assembled outside the lens support 5, the upper spring 2 is arranged in the iron shell 1, four corners below the upper spring 2 are respectively provided with a magnet 3, the magnets 3 are positioned at the upper part of the lens support 5, the lower spring 6 is assembled between the lens support 5 and the lower cover 7, and the upper spring 2, the four magnets 3, the coil 4, the lens support 5 and the lower spring 6 are all arranged in the iron shell 1;
when the lens supporting body 5 is used for supporting a lens, the whole lens supporting body 5 is of a flat cylindrical structure, the inner cavity of the lens supporting body 5 is hollow, the cross section of the cavity is circular, the inner cavity of the lens supporting body 5 is used for carrying the lens and is displaced back and forth along the optical axis direction together with the lens, a flange 501 is formed on the outer wall of the lens supporting body 5, the flange 501 is formed by sequentially connecting and enclosing a plurality of edges in an end-to-end mode, a starting line hanging column 502 is arranged on one edge, a finishing line hanging column 503 is arranged on the other edge, a plurality of protruding A positioning columns 504 are arranged on the bottom surface of the flange 501, a plurality of protruding winding parts 505 are formed at the outer wall of the lens supporting body 5 on the upper portion of the flange 501, a plurality of protruding ribs 506 are distributed on the outer wall of the winding parts 505, and the shock ribs 506 are used for reinforcing winding tightness of a coil.
In a preferred embodiment, four raised winding portions 505 are formed on the outer wall of the lens support 5, and the four raised winding portions 505 are distributed on the outer wall of the lens support 5 at intervals of 90 degrees.
In a specific implementation, the number of the impact-resistant ribs 506 may be one, two, or a plurality of two or more.
In a specific implementation, the whole lower spring is approximately quadrilateral, four vertex angle positions are formed, four vertex angle positions of the lower spring 6 are respectively provided with an elastic buffer zone substrate 601, two symmetrically distributed hot riveting positioning holes 602 are formed in the elastic buffer zone substrate 601, a strip-shaped dispensing slot 603 is formed between the two hot riveting positioning holes 602, a bonding pad positioning hole 604 is formed in the elastic buffer zone substrate 601, the lower edge of the elastic buffer zone substrate 601 is connected with one end of a buffer zone spring wire 605, the other end of the buffer zone spring wire 605 is connected with one end of an outer spring wire 606, the other end of the outer spring wire 606 is connected with one end of an inner spring wire 608 through a positioning substrate 607, the other end of the inner spring wire 608 is connected with the elastic buffer zone substrate 601 of an adjacent vertex angle position, the elastic buffer zone substrate 601 of the adjacent vertex angle position is also connected with the other end of the inner spring wire 608 through a section of the buffer zone spring wire 605, a non-equidistant gap portion 609 is formed between the outer spring wire 606 and the inner spring wire 608, a positioning hole 610 is formed in the positioning hole 607 and the position is connected with one end of the inner spring wire 608, a matching hole 611 is formed around the position of the inner spring wire 608, and a point welding hole 612 is formed around the surface of the substrate 611.
The buffer area spring wire 605 is composed of an initial reed 6051, a reed bending part 6052, a first buffer area spring wire 6053, a first roundabout part spring wire 6054, a second buffer area spring wire 6055 and a second roundabout part spring wire 6056, wherein the elastic buffer area substrate 601 is connected with the first buffer area spring wire through the initial reed, one end of the initial reed is connected with the elastic buffer area substrate, the other end of the initial reed is connected with one end of the first buffer area spring wire through a reed bending part, the reed bending part is in convergent distribution, the width of the reed bending part is larger than that of the first buffer area spring wire, the second buffer area spring wire is located between the first buffer area spring wire and the outer spring wire, the other end of the first buffer area spring wire is located on the same side as one end of the second buffer area spring wire, the other end of the first buffer area spring wire is connected with one end of the second buffer area spring wire through the first roundabout part spring wire, the other end of the second buffer area spring wire is located on the same side as one end of the outer spring wire, and the other end of the second buffer area spring wire is connected with the roundabout part spring wire through the second roundabout part spring wire. The four corners of the lower spring are fixed on the base. The inner spring wire is fixed on the carrier. After the coil is electrified, the lens support body drives the lens to move towards the optical axis. At this time, the spring is elastically stretched by the middle part spring wire arm (i.e., the buffer area spring wire). The spring wire arm (namely the buffer spring wire) turned by the crutch has the function of well dispersing stress. The shorter the buffer wire distance, the more concentrated the stress is at a small segment, so that the larger the force born by the wire, the more easily the wire breaks, thereby causing poor performance of the lens driving device. Therefore, the spring wire arm structure has the advantages of well dispersing stress, having excellent impact resistance and torsion resistance, and preventing the breakage of the spring in the repeated operation and stretching process.
In a specific implementation, a first concave portion 507 is disposed on one edge, a starting line hanging post 502 is disposed at the first concave portion 507, a second concave portion 508 is disposed on the other edge, and a final line hanging post 503 is disposed at the second concave portion 508.
In a specific implementation, the lower ends of the initial wire hanging post 502 and the final wire hanging post 503 are respectively fixed at the first concave portion 507 and the second concave portion 508, and the upper ends of the initial wire hanging post 502 and the final wire hanging post 503 are in a T shape or an inverted L shape, or may be other shapes with the same winding function.
In a specific implementation, the flange 501 is in an octagonal shape, and is formed by sequentially connecting and enclosing eight edges end to end, where the two edges of the one edge and the other edge are opposite to each other on the octagonal flange 501.
In a specific implementation, 1-100 anti-impact ribs 506 are distributed on the outer wall of the winding portion 505, the anti-impact ribs 506 are transversely distributed on the outer wall of the winding portion 505, and gaps are formed between the anti-impact ribs 506 in a transverse distribution.
In particular embodiments, the anti-impact ribs 506 may be raised cuboids or cubes, or other shapes that enhance the bonding strength of the windings.
In a specific implementation, the coil 4 may have a polygonal structure, and in a preferred embodiment, the coil 4 is approximately octagonal, and a coil start wire 401 and a coil end wire 402 are respectively provided on the coil 4, and the coil start wire 401 end is wound on the start wire hanging post 502, and the coil end wire 402 is wound on the end wire hanging post 503.
In specific implementation, two adjacent vertex angle positions of the lower cover 7 are respectively provided with a bonding pad 701, two other adjacent vertex angle positions of the lower cover 7 are respectively provided with two hot riveting positioning columns 702, the riveting positioning columns 702 are matched with the hot riveting positioning holes 602, a circular opening is formed in the center of the lower cover 7, a raised dust-proof ring 703 is formed in the direction of the bottom surface of the lens support body 5 at the inner edge of the circular opening, the dust-proof ring 703 is assembled into a circular cavity at the lower end of the lens support body 5, and the dust-proof ring 703 of the lower cover 7 is combined with the inner wall 509 of the circular cavity of the lens support body 5 in a non-contact dislocation manner, so that an extremely good dust-proof function is achieved.
In a specific implementation, four vertex angle positions of the iron shell 1 form a sinking end face 101, and the sinking end face 101 is triangular. In the prior art, the stator consists of an iron shell, an upper cover, springs and magnets, and the iron shell cannot be made thick, so that the upper cover is required to be added in the prior art, the upper springs are arranged on the upper cover, and the magnets are arranged at four corners on the basis. In this case, the stator is composed of an iron shell, a spring and a magnet. Because the iron shell is sunk at four corners, the thickness of the upper cover is replaced. The magnet may be directly mounted on the sinking portion. The height positions of the springs and the magnets are met. This construction eliminates the need for an upper cover, which saves costs in a certain sense. In addition, the sinking surface can be used for clamping the camera module in the mobile phone, and the whole thickness of the mobile phone can be reduced.
In specific implementation, the dust-proof ring 703 of the lower cover 7 is combined with the inner cavity annular wall of the lens support body 5 in a non-contact dislocation manner, so that an extremely good dust-proof function is achieved. The iron shell is made of nonmagnetic soft stainless steel.
In the concrete implementation, the upper spring is of a square plate spring-shaped structure, is arranged on the inner side of the iron shell, and clamps and supports the lens support body together with the lower spring.
In a specific implementation, the magnet 3 is approximately in a trapezoid structure, or the magnet 3 is in a shoe-shaped gold ingot shape, and four magnets are arranged at four corners of the iron shell. The coil is electrified, and the magnet interacts with the coil to generate electromagnetic force to drive the lens support body to move towards the direction of the optical axis and stay at a position balanced with the elastic force of the spring.
In practice, the lower cover 7 serves to support the entire lens driving device.
In a specific implementation, the lower spring is a flat plate spring, and the lower spring is provided with: two spot welding holes which are arranged in a mutually opposite direction and are used for spot welding soldering paste; a choke groove is respectively arranged at the position of the semi-surrounding spot welding hole; a plurality of A positioning holes which are nested with the A positioning columns of the lens supporting body along the peripheral direction of the lower spring; two pad alignment holes for electrically connecting with two terminals of the base; the base is provided with a plurality of hot riveting positioning holes which are nested with two hot riveting positioning columns on the base, and a plurality of glue dispensing grooves which strengthen the bonding and fastening functions with the base.
In a specific implementation, the lower cover is of a square structure integrally formed with the terminal 704, two adjacent corners of the lower cover are respectively provided with a bonding pad, and the back surfaces of the bonding pads are respectively provided with a terminal with electric conduction function. Four corner edges of the lower cover are provided with hot riveting positioning columns nested with the hot riveting positioning holes of the lower spring. In the embodiment, each corner edge is provided with a pair of hot riveting positioning columns; and the inner ring is provided with a dustproof ring with a circular bulge, and the dustproof ring is matched with the circular wall of the inner cavity at the lower end of the lens support body to play a dustproof role. The base is provided with two terminals which are integrally formed.
Next, the assembly and sequence of the embodiments of the present invention will be described with reference to the drawings, and the description of the structure and functional features of the components described above will be omitted. In addition, common means such as dispensing and curing after assembly of the parts are technical means which are easily thought by those skilled in the art, and therefore are not within the scope of the present invention, which is emphasized. The manner and sequence of assembly of the embodiments of the present invention and the features of the effects to be achieved by the present invention are mainly described herein.
In a specific implementation, the coil is wound around the outer periphery of the lens support body, the coil start wire is wound around the start wire hanging post of the lens support body, and the coil end wire is wound around the end wire hanging post of the lens support body.
Next, as shown in fig. 10, the lower spring is disposed on the lens support body, and the positional relationship between the lower spring and the lens support body is that the a positioning column of the lens support body is matched and jogged with a plurality of a positioning holes of the lower spring; the key points are that the coil is wound on the lens support body, and a plurality of impact-resistant edges are arranged on the lens support body, and the lens support body and the coil are integrally wound and molded, so that after the winding and molding, the impact resistance between the wound coil and the lens support body is greatly enhanced due to the impact-resistant edges, and the coil cannot fall off from the lens support body even under the action of external force, thereby improving the reliability of products.
In addition, after the lower spring and the lens support are assembled, as shown in fig. 10, a start wire hanging post and a finish wire hanging post of the lens support are arranged right below the two spot welding holes, and solder paste is added into the spot welding holes, so that the lower spring and the coil can be electrically connected.
The conventional method is to directly solder the two start and end wires of the coil wound on the lens support body onto the lower spring for electrical connection, and the conventional operation mode not only makes the lower spring easy to deform, but also causes the lens support body to be welded, thereby causing various poor performances and appearance. In addition, once the assembled lens driving device is impacted by external force such as falling, the connection point of the starting end wire of the coil and the lower spring is easily broken at the wire end after being impacted, so that the electrical contact is poor, and the lens driving device installed in a mobile phone and the like can not be driven to cause functional problems. The impact-resistant side winding structure with the hanging wire column arranged on the lens support body is beneficial to solving the defect that the traditional lens driving device is not impact-resistant, so that the lens driving device is more excellent in impact resistance.
And when the solder paste is added into the spot welding hole so as to electrically connect the lower spring and the coil, the choke groove which is semi-surrounding the spot welding hole is arranged on the lower spring, so that the choke groove can absorb the excessive and overflowed part even under the condition of adding more solder paste, and the safety of the solder quality is ensured.
In addition, the anti-impact rib structure shown in fig. 3 in this embodiment makes the coil not subject to the risk of the coil falling out of the lens support in the conventional sense after the coil is impacted. The structure is optimized by one step compared with the prior structure without impact edges, so that the impact resistance of the integral lens driving device is outstanding.
As shown in fig. 10, the coil is wound around the lens support body, and then the lower spring is fitted and disposed on the integrally wound lens support body. The coil, the lens support body, and the lower spring are combined to form a moving member of the lens driving device.
Next, the moving member is directly disposed on the lower cover. In order to facilitate the inspection of the situation that the moving part is arranged on the lower cover, as shown in fig. 11, the moving part only keeps the lower spring, so that the assembly effect of the moving part and the lower cover can be more clearly and intuitively illustrated.
As shown in fig. 11, the hot riveting positioning holes at the 4 corners of the lower spring are matched and embedded with the hot riveting positioning posts at the four corners of the lower cover. In addition, four corners of the spring are respectively provided with a glue dispensing groove, after the lower spring and the lower cover are assembled, thermosetting glue is added into the glue dispensing grooves, so that the bonding tightness between the lower spring and the lower cover can be greatly enhanced, and the shock resistance is greatly improved.
Finally, the stator formed by combining the iron shell, the upper spring and the 4 magnets is fastened on the iron shell, and the lens driving device of the embodiment is assembled.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention. For example, the number of the ribs against the impact is not limited to 1 to 100, but may be 100 or more, and the shape of the ribs against the impact may be variously changed, or the convex impact ribs provided on the winding portion 6 may be changed to concave. The choke groove on the spot welding substrate is not necessarily made into a semi-enclosed arc shape, and can also be made into a semi-enclosed rectangle, or can be directly made into a strip shape for blocking and absorbing the excessive glue quantity. In order to increase the bonding surface, the glue dispensing grooves between the hot riveting positioning holes are not necessarily made into long strips, and can be made into S-shaped curves or right-angle bending shapes. The overall four-corner shape of the lower spring is not necessarily square, and can be rectangular according to the actual requirement of the size and shape of the lens driving device and the external dimension of the lower cover. In short, various modifications such as shapes, the number of lines, etc. may be made to achieve similar functions or effects.
Claims (11)
1. A camera lens driving apparatus characterized in that: the lens driving device is formed by assembling an iron shell (1), an upper spring (2), four magnets (3), a coil (4), a lens supporting body (5), a lower spring (6) and a lower cover (7), wherein:
the coil (4) is assembled outside the lens support body (5), the upper spring (2) is arranged in the iron shell (1), four corners below the upper spring (2) are respectively provided with a magnet (3), the magnets (3) are positioned at the upper part of the lens support body (5), the lower spring (6) is assembled between the lens support body (5) and the lower cover (7), and the upper spring (2), the four magnets (3), the coil (4), the lens support body (5) and the lower spring (6) are all arranged in the iron shell (1);
the lens support body (5) is used for supporting a lens, the whole lens support body (5) is of a flat cylindrical structure, an inner cavity of the lens support body (5) is hollow, the cross section of the cavity is circular, the inner cavity of the lens support body (5) is used for carrying the lens and moves forwards and backwards along the optical axis direction together with the lens, a flange (501) is formed on the outer wall of the lens support body (5), the flange (501) is formed by sequentially connecting and enclosing a plurality of edges end to end, an initial line hanging column (502) is arranged on one edge, a final line hanging column (503) is arranged on the other edge, a plurality of protruding A positioning columns (504) are arranged on the bottom surface of the flange (501), a plurality of protruding winding parts (505) are formed at the outer wall of the lens support body (5) at the upper part of the flange (501), and a plurality of protruding shock-resistant edges (506) are distributed on the outer wall of the winding parts (505).
The whole lower spring is approximately quadrilateral, four vertex angle positions are formed, four vertex angle positions of the lower spring (6) are respectively provided with an elastic buffer zone substrate (601), two symmetrically distributed hot riveting positioning holes (602) are formed in the elastic buffer zone substrate (601), a strip-shaped dispensing slot (603) is formed between the two hot riveting positioning holes (602), a bonding pad positioning hole (604) is formed in the elastic buffer zone substrate (601), the lower edge of the elastic buffer zone substrate (601) is connected with one end of a buffer zone spring wire (605), the other end of the buffer zone spring wire (605) is connected with one end of an outer spring wire (606), the other end of the outer spring wire (606) is connected with one end of an inner spring wire (608) through a positioning substrate (607), the other end of the inner spring wire (608) is connected with the elastic buffer zone substrate (601) of an adjacent vertex angle position, the elastic buffer zone substrate (601) is also connected with the other end of the inner spring wire (608) through a section of the buffer zone spring wire (605), the outer spring wire (606) is encircling one end of the inner spring wire (608) correspondingly, the inner spring wire (608) is provided with a positioning post (610) and the same spacing is formed between the two positioning post (608), the positioning post (610) and the positioning post (610) is formed at the position (610) and the position (608), a blocking groove (613) is formed around the spot welding hole (612) on the surface of the spot welding substrate (611).
2. A camera lens driving apparatus according to claim 1, wherein: a first concave part (507) is arranged on one edge, a starting line hanging column (502) is arranged at the first concave part (507), a second concave part (508) is arranged on the other edge, and a final line hanging column (503) is arranged at the second concave part (508).
3. A camera lens driving apparatus according to claim 2, wherein: the lower ends of the initial line hanging column (502) and the final line hanging column (503) are respectively fixed at the first concave part (507) and the second concave part (508), and the upper ends of the initial line hanging column (502) and the final line hanging column (503) are T-shaped or inverted L-shaped.
4. A camera lens driving apparatus according to claim 1, wherein: the flange (501) is octagonal, and is formed by sequentially connecting and enclosing eight edges end to end, and the two edges of the edge and the other edge are opposite sides on the octagonal flange (501).
5. A camera lens driving apparatus according to claim 1, wherein: the outer wall of the winding part (505) is provided with 1-100 shock-resistant edges (506), the shock-resistant edges (506) are transversely distributed on the outer wall of the winding part (505), and transversely distributed gaps are formed between the shock-resistant edges (506).
6. A camera lens driving apparatus according to claim 1, wherein: the impact-resistant edges (506) are raised cuboids or cubes.
7. A camera lens driving apparatus according to claim 1, wherein: the coil (4) is approximately octagonal, a coil initial wire (401) and a coil final wire (402) are respectively arranged on the coil (4), the coil initial wire (401) end is wound at the initial wire hanging column (502), and the coil final wire (402) is wound at the final wire hanging column (503).
8. A camera lens driving apparatus according to claim 1, wherein: two adjacent vertex angle positions of the lower cover (7) are respectively provided with a bonding pad (701), two adjacent vertex angle positions of the lower cover (7) are respectively provided with two hot riveting positioning columns (702), the riveting positioning columns (702) are matched with the hot riveting positioning holes (602), a circular opening is formed in the center of the lower cover (7), a raised dustproof ring (703) is formed in the bottom surface direction of the lens support body (5) at the inner edge of the circular opening, the dustproof ring (703) is assembled into a circular cavity at the lower end of the lens support body (5), and the dustproof ring (703) of the lower cover (7) is combined with the inner wall (509) of the circular cavity of the lens support body (5) in a non-contact dislocation mode.
9. A camera lens driving apparatus according to claim 1, wherein: four vertex angle positions of the iron shell (1) form a sinking end face (101), and the sinking end face (101) is triangular.
10. A camera lens driving apparatus according to claim 1, wherein: the magnet (3) is approximately in a trapezoid structure.
11. A camera lens driving apparatus according to claim 1, wherein: the buffer area spring wire (605) is composed of an initial reed (6051), a reed bending part (6052), a first buffer area spring wire (6053), a first roundabout part spring wire (6054), a second buffer area spring wire (6055) and a second roundabout part spring wire (6056), wherein the elastic buffer area substrate (601) is connected with the first buffer area spring wire through the initial reed, one end of the initial reed is connected with the elastic buffer area substrate, the other end of the initial reed is connected with one end of the first buffer area spring wire through a reed bending part, the reed bending part is in convergent distribution, the width of the reed bending part is larger than that of the first buffer area spring wire, the second buffer area spring wire is positioned between the first buffer area spring wire and the outer spring wire, the other end of the first buffer area spring wire is positioned on the same side as one end of the second buffer area spring wire, the other end of the first buffer area spring wire is connected with the second roundabout part spring wire through the first roundabout part spring wire, the other end of the second roundabout part spring wire is in a circular arc shape, the other end of the second buffer area spring wire is positioned on the same side as the outer wire, and the roundabout part is also connected with the second roundabout part spring wire through the roundabout part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731115.1A CN107329350B (en) | 2017-08-23 | 2017-08-23 | Camera lens driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731115.1A CN107329350B (en) | 2017-08-23 | 2017-08-23 | Camera lens driving device |
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| Publication Number | Publication Date |
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| CN107329350A CN107329350A (en) | 2017-11-07 |
| CN107329350B true CN107329350B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710731115.1A Active CN107329350B (en) | 2017-08-23 | 2017-08-23 | Camera lens driving device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108181698A (en) * | 2018-01-10 | 2018-06-19 | 上海比路电子股份有限公司 | A kind of lens drive motor |
| CN108377089A (en) * | 2018-03-27 | 2018-08-07 | 苏州聚力电机有限公司 | A kind of carrier module of voice coil motor |
| CN108539957A (en) * | 2018-03-27 | 2018-09-14 | 苏州聚力电机有限公司 | A kind of novel shrapnel of voice coil motor |
| CN108390489A (en) * | 2018-03-27 | 2018-08-10 | 苏州聚力电机有限公司 | A kind of voice coil motor carrier with risk management |
| CN108336887A (en) * | 2018-03-27 | 2018-07-27 | 苏州聚力电机有限公司 | A kind of novel voice coil motor carrier |
| CN108336888A (en) * | 2018-03-27 | 2018-07-27 | 苏州聚力电机有限公司 | A kind of voice coil motor of new function |
| CN108377085A (en) * | 2018-03-27 | 2018-08-07 | 苏州聚力电机有限公司 | A kind of newly-designed voice coil motor shell |
| CN108322010A (en) * | 2018-03-27 | 2018-07-24 | 苏州聚力电机有限公司 | A kind of voice coil motor with new function |
| CN108322011A (en) * | 2018-03-27 | 2018-07-24 | 苏州聚力电机有限公司 | A kind of newly-designed voice coil motor assembly |
| CN108336851A (en) * | 2018-03-27 | 2018-07-27 | 苏州聚力电机有限公司 | A kind of shell of voice coil motor |
| CN108372369A (en) * | 2018-03-27 | 2018-08-07 | 苏州聚力电机有限公司 | A kind of typesetting design of the novel shrapnel of voice coil motor |
| CN108321966A (en) * | 2018-03-27 | 2018-07-24 | 苏州聚力电机有限公司 | A kind of novel lower cover structure of voice coil motor |
| CN108322012A (en) * | 2018-03-27 | 2018-07-24 | 苏州聚力电机有限公司 | A kind of newly-designed voice coil motor |
| CN108377087A (en) * | 2018-03-27 | 2018-08-07 | 苏州聚力电机有限公司 | A kind of voice coil motor |
| CN108490579A (en) * | 2018-03-27 | 2018-09-04 | 苏州聚力电机有限公司 | A kind of novel voice coil motor |
| CN108462361A (en) * | 2018-03-27 | 2018-08-28 | 苏州聚力电机有限公司 | A kind of voice coil motor upper cover with novel terminal structure |
| CN108539958A (en) * | 2018-03-27 | 2018-09-14 | 苏州聚力电机有限公司 | A kind of component of voice coil motor |
| CN108377082A (en) * | 2018-03-27 | 2018-08-07 | 苏州聚力电机有限公司 | A kind of preferable voice coil motor of performance |
| CN108539956A (en) * | 2018-03-27 | 2018-09-14 | 苏州聚力电机有限公司 | A kind of voice coil motor shrapnel of special construction |
| CN108591212A (en) * | 2018-07-24 | 2018-09-28 | 深圳市米成电子有限公司 | The connection structure of shrapnel and lens barrel under a kind of VCM |
| CN113056705B (en) * | 2018-11-14 | 2022-12-30 | 阿尔卑斯阿尔派株式会社 | Lens driving device and camera module |
| CN113452178A (en) * | 2021-06-28 | 2021-09-28 | 新思考电机有限公司 | Carrier structure, lens driving device, camera device and electronic product |
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| CN107329350A (en) | 2017-11-07 |
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Effective date of registration: 20180612 Address after: 201712 No. 2009 Tianchen Road, Qingpu Industrial Park, Qingpu District, Shanghai Applicant after: SHANGHAI B.L ELECTRONICS Co.,Ltd. Applicant after: SHANGHAI YUANLU ELECTRONIC CO.,LTD. Address before: 201712 No. 2009 Tianchen Road, Qingpu Industrial Park, Qingpu District, Shanghai Applicant before: SHANGHAI B.L ELECTRONICS Co.,Ltd. |
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