CN113093360A - Elastic support mechanism, optical component drive mechanism, imaging device, and electronic apparatus - Google Patents
Elastic support mechanism, optical component drive mechanism, imaging device, and electronic apparatus Download PDFInfo
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- CN113093360A CN113093360A CN202110434770.7A CN202110434770A CN113093360A CN 113093360 A CN113093360 A CN 113093360A CN 202110434770 A CN202110434770 A CN 202110434770A CN 113093360 A CN113093360 A CN 113093360A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 54
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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
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
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Abstract
The invention relates to an elastic support mechanism, an optical component drive mechanism, an imaging device and an electronic apparatus. The device overcomes the defects of large posture difference, large volume and the like in the existing X/Y axis direction. The elastic support mechanism comprises a single carrier and two elastic piece accommodating spaces, wherein the single carrier is positioned in a base; the elastic sheet comprises two pieces, one piece is arranged in one elastic sheet accommodating space and is respectively connected with the single carrier and the base, and the other piece is arranged in the other elastic sheet accommodating space and is respectively connected with the single carrier and the base; the two elastic sheets are positioned on the same longitudinal surface along the direction of the incident optical axis. The invention has the advantages that: reduce the posture difference in the X/Y axis direction and reduce the volume.
Description
Technical Field
The present invention relates to an electronic device, and more particularly, to an elastic supporting mechanism, an optical component driving mechanism, an image capturing device, and an electronic device.
Background
Periscopic motors are widely used in various image pickup apparatuses or electronic devices.
The existing periscopic motor generally adopts a double-carrier structure, the periscopic motor carries an optical prism, the optical prism has an incident optical axis and an emergent optical axis, two different elastic pieces are respectively connected by adopting elastic pieces for driving an X axis and a Y axis to use between a carrier and a base, the cost is increased, the problem of inconsistent shaking of the double elastic pieces can also occur, the development trend of miniaturization of a mobile phone camera motor is not facilitated, namely, the posture difference in the X/Y axis direction is larger, and the use of a camera device or electronic equipment is influenced.
In view of the above, there is a need in the art for an improved elastic support structure between a base and a carrier, so as to solve the above-mentioned technical problems.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide an elastic support mechanism, an optical member drive mechanism, an image pickup apparatus, and an electronic apparatus that can solve the above problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the elastic support mechanism comprises a single carrier positioned in a base, an
The number of the elastic piece accommodating spaces is two, one elastic piece accommodating space is positioned between one end of the X axis of the single carrier and one end of the X axis of the base, and the other elastic piece accommodating space is positioned between the other end of the X axis of the single carrier and the other end of the X axis of the base;
the elastic sheet comprises two pieces, one piece is arranged in one elastic sheet accommodating space and is respectively connected with the single carrier and the base, and the other piece is arranged in the other elastic sheet accommodating space and is respectively connected with the single carrier and the base;
the two elastic sheets are positioned on the same longitudinal surface along the direction of the incident optical axis.
In the elastic support mechanism, the two elastic sheets are symmetrically distributed with respect to the incident light axis.
In the above elastic support mechanism, the elastic sheet includes:
the contact parts are flaky and distributed along the longitudinal surface of the incident optical axis;
an upper wrist part, one end of which is connected with the upper side of the contact part;
a lower wrist part, one end of which is connected with the lower side of the contact part;
and the base connecting part is respectively connected with the other end of the upper wrist part and the other end of the lower wrist part.
In the above elastic support mechanism, the upper wrist portion and the lower wrist portion are symmetrically distributed.
In the elastic supporting mechanism, the contact part, the upper wrist part, the lower wrist part and the base connecting part surround the inner part to form an inner closed deformation space with a small middle and two large ends.
In the elastic support mechanism, the upper wrist part is provided with an upper L-shaped outer deformation space, the lower wrist part is provided with a lower L-shaped outer deformation space, and the upper L-shaped outer deformation space and the lower L-shaped outer deformation space are symmetrically distributed.
In the above elastic support mechanism, the support mechanism further includes two elastic sheet fixing portions, and one elastic sheet fixing portion is disposed in one of the two elastic sheet accommodating spaces, the elastic sheet fixing portions are fixed on the single carrier, and one end of each elastic sheet in each elastic sheet accommodating space is connected to the elastic sheet fixing portion, and the other end of each elastic sheet is connected to the base.
In the above elastic support mechanism, each spring plate fixing portion is provided with a longitudinal fixing plane, and the contact portion is snugly fixed on the longitudinal fixing plane
In the above elastic support mechanism, the longitudinal surface and the incident optical axis are distributed at intervals, or the incident optical axis is located on the longitudinal surface.
The invention also discloses an optical component driving mechanism which is provided with the elastic supporting mechanism.
The invention also discloses an image pickup device which is provided with the optical component driving mechanism.
The invention also discloses electronic equipment with the camera device.
Compared with the prior art, the invention has the advantages that:
the single carrier is utilized to cooperate with the elastic sheet fixing parts, two elastic sheet fixing parts are provided, each elastic sheet fixing part is used for fixing one elastic sheet, the elastic sheet fixing parts are used for enabling the two elastic sheets to be located on the same longitudinal surface along the incident optical axis direction, the single carrier can rotate around an X axis and a Y axis, the posture difference in the X/Y axis direction can be greatly reduced, and therefore the driving precision is improved, namely the shooting precision and the stability of the final shooting device or the electronic equipment are guaranteed.
The small-sized application is facilitated, and the design is more reasonable.
Low cost and easy processing and manufacturing.
Drawings
Fig. 1 is a schematic perspective view of a housing according to the present invention.
Fig. 2 is a front view of the housing according to the present invention.
Fig. 3 is a schematic perspective view of another perspective view of the housing provided by the present invention.
Fig. 4 is a schematic structural view of the optical component driving mechanism installed in the housing according to the present invention.
Fig. 5 is a schematic perspective view of a circuit board according to the present invention.
Fig. 6 is a schematic perspective view of a front side view angle of the base according to the present invention.
Fig. 7 is a schematic view of a rear side view angle of the base according to the present invention.
Fig. 8 is a schematic view of the state in which the base and the circuit board provided by the present invention are fixed together.
Fig. 9 is a schematic perspective view of the optical component driving mechanism according to the present invention.
Fig. 10 is a schematic view of the exploded structure of fig. 9.
Fig. 11 is a schematic top view of the optical component driving mechanism according to the present invention.
Fig. 12 is a schematic sectional view taken along line a-a in fig. 11.
FIG. 13 is a schematic sectional view taken along line B-B in FIG. 11.
FIG. 14 is a schematic diagram of a single carrier rear side view angle configuration provided by the present invention.
FIG. 15 is a schematic top view of a single carrier according to the present invention.
Fig. 16 is a schematic diagram of a spring plate structure provided in the present invention.
Fig. 17 is a schematic structural diagram of an image pickup apparatus provided by the present invention.
Fig. 18 is a schematic structural diagram of an electronic device provided in the present invention.
FIG. 19 is a torque comparison graph of the present design and embodiment provided by the present invention.
FIG. 20 is a torque comparison schematic of the present design and embodiment provided by the present invention.
FIG. 21 is a table comparing the prior art design and the present embodiment.
Fig. 22 is a schematic diagram of the X-axis driving principle provided by the present invention.
Fig. 23 is a schematic structural diagram of the Y-axis driving principle provided by the present invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 9 and 10, the base 2 is used to fix the circuit board 3 and to carry the single carrier 4.
As shown in fig. 5, the circuit board 3 includes a circuit intermediate portion 30, and a reinforcing member is embedded inside a middle region of the circuit intermediate portion 30 so as to improve the structural strength of the circuit intermediate portion 30.
An electrical terminal 33 is connected to one end of the circuit board 3 to facilitate connection to a power source.
As shown in fig. 5 and 12-13, the circuit side portions 31 are two and oppositely disposed. The circuit side portion 31 is connected to the circuit intermediate portion 30 and is used for electrical connection with the Y-axis coil 6 b.
And a circuit inclined portion 32 that is located between the two circuit side portions 31 and is inclined to above the circuit intermediate portion 30. The circuit slope part 32 is used for electrical connection with the tilted X-axis coil 6 c.
The circuit intermediate portion 30 and the circuit inclined portion 32 are arranged at an included angle of 45 °, but may have other acute angle values.
One of the circuit side portions 31 is connected to an end of the circuit intermediate portion 30 remote from the connecting end 33, and the other circuit side portion 31 is connected to a rear side of the circuit intermediate portion 30 via a bent portion 34. The bent portion 34 here includes a rear overhang portion connected to the rear side of the circuit intermediate portion 30, and a vertical portion connected to a free end of the rear overhang portion and vertically connected to the rear overhang portion, and the circuit side portion 31 is connected to the vertical portion.
By using the circuit inclined part 32 which is arranged obliquely, the rotation of the single carrier 4 around the X axis can be realized by combining the X axis coil 6c arranged on the circuit inclined part 32 and the X axis driving magnet 6d, thereby not only improving the driving efficiency, but also improving the final shooting precision.
The circuit side portion 31 connected to the circuit intermediate portion 30 by the bent portion 34 is suspended above the circuit intermediate portion 30.
A first pin hole 320 is provided in the circuit inclined portion 32; the first pin holes 320 are several and distributed on the upper side of the circuit inclined portion 32, i.e., the upper side of the inclined surface.
A second pin hole 310 is provided in the circuit side portion 31;
the circuit intermediate portion 30 is provided with a third pin hole 300;
and a fourth pin hole 340 is provided in the bent portion 34.
The pin holes are matched with pins on the base 2 to realize accurate positioning of the circuit board 3.
The circuit intermediate portion 30 and the circuit inclined portion 32 are connected by a U-shaped connecting portion 35. Further, a stepped groove 350 is provided on the upper surface of the junction of the U-shaped connecting portion 35 and the circuit intermediate portion 30, while the thickness of the U-shaped connecting portion 35 is smaller than that of the circuit intermediate portion 30 and the U-shaped connecting portion 35 extends rearward into the stepped groove, and the upper surface of the portion of the U-shaped connecting portion 35 which extends into the stepped groove is spaced apart from the stepped groove and does not exceed the upper surface of the circuit intermediate portion 30. This structure is designed mainly for the convenience of mounting the circuit board 3.
Preferably, the U-shaped connecting portions 35 of the present embodiment are two and spaced apart. To improve structural strength.
Preferably, the two circuit side portions 31 of the present embodiment are parallel to each other, and the circuit inclined portion 32 is located at a central position between the two circuit side portions 31.
The structure of the base 2 is set forth in detail as follows:
as shown in fig. 6 to 8, the base chassis 2 includes an intermediate carrier portion 20 for holding a circuit intermediate portion 30 of the circuit board 3; the structure of the intermediate load bearing part 20 is rectangular block-shaped.
Two side end bearing parts 21 connected to the middle bearing part 20 and distributed at intervals, wherein the two side end bearing parts 21 are respectively used for fixing the circuit side parts 31 connected with the circuit middle part 30; preferably, the two side bearing parts 21 are respectively connected to the two lengthwise ends of the middle bearing part 20, and the side bearing parts 21 and the middle bearing part 20 are vertically connected, which is convenient for manufacturing and has excellent overall structural strength.
The two circuit side portions 31 are electromagnetically driven corresponding to the Y axis and the two side end bearing portions 21 are oppositely disposed.
And an inclined surface 220 provided on the intermediate carrier part 20 and fixing the circuit inclined part 32 connected to the intermediate carrier part 20.
Based on the above structure of this base 2, circuit slope portion 32 then corresponds the X axle electromagnetic drive of slope distribution, then cooperates Y axle electromagnetic drive, and it can make prism L0 have X axle and Y axle rotation adjustment simultaneously when the adjustment skew when the drive for the adjustment skew efficiency promotes by a wide margin, has further promoted prism drive's precision and reliability.
Preferably, the inclined bearing part 22 is provided in the central region of the intermediate bearing part 20 of the present embodiment, and the rear side surface of the inclined bearing part 22 is the inclined surface 220. The design of the inclined carrier part 22 can form a triangular reinforcement for the structure of the structural base 2 and at the same time can be used for fixing the circuit inclined part 32.
Next, the tilt bearing portion 22 is located between the two side end bearing portions 21. Preferably, the inclined bearing portion 22 is located at a central position between the two side end bearing portions 21 to ensure stable driving. Of course, the inclined bearing part 22 may be located at any position between the two side bearing parts 21, and further, the number of the inclined bearing parts 22 may also be two, each inclined bearing part 22 is respectively provided with the circuit inclined part 32 and the corresponding X-axis electromagnetic driving, and the X-axis coils are connected in parallel to further increase the driving speed.
An X-axis coil avoiding through hole 223 is provided in the central region of the inclined bearing portion 22. The circuit inclined portion 32 is provided with an X-axis coil 6c, and the X-axis coil 6c is disposed in the X-axis coil avoiding through hole 223 to prevent movement interference and improve the disassembly and assembly efficiency.
The inclined surface 220 is provided with a first glue storage groove 221 and a first positioning pin 222. The first glue storage groove 221 is used for fixing the circuit inclined portion 32, and the first pin hole 320 for inserting the first positioning pin 222 is formed in the circuit inclined portion 32, so that stable fixing can be realized.
A concave positioning groove 210 is respectively arranged on the outer surface of each side end bearing part 21, and the concave positioning groove 210 is used for fixing the circuit side part 31. The second positioning pin 211 and the second glue storage groove 212 are arranged at the bottom of the inner concave positioning groove 210. Similarly, the glue in the second glue storage groove 212 can enhance the connection strength with the circuit side portion 31, the circuit side portion 31 is provided with a second pin hole 310, and the second positioning pin 211 is inserted into the second pin hole, so that the stable fixation can be realized.
Next, each side end bearing portion 21 is provided with a Y-axis coil escape through hole 213 that communicates with the corresponding concave positioning groove 210. The disassembly and assembly efficiency is improved, and an avoiding effect is achieved.
In addition, a bottom positioning groove 200 communicating with the two concave positioning grooves 210 is formed at the bottom of the middle carrier 20, and the bottom positioning groove 200 is used for fixing the circuit middle part 30. In this way it is possible to facilitate the mounting of the circuit board 3 and to protect the circuit board 3 against wear damage caused by contact with the housing 1 at the communicating corners of the bottom detent 200 and the recessed detent 210. The above-mentioned U-shaped connecting portion 35, which has an upper surface not exceeding the upper surface of the circuit intermediate portion 30 and projects into the stepped groove, prevents the circuit intermediate portion 30 from projecting from the lower surface of the intermediate carrier portion 20 to prevent contact damage to the circuit board 3.
Two avoiding notches 203 for the U-shaped connecting portion 35 to extend into are formed in the front side of the bottom of the middle bearing portion 20, and the avoiding notches are communicated with the bottom positioning groove 200.
Similarly, as shown in fig. 6-7, a third positioning pin 201 and a third glue storage tank 202 are disposed at the bottom of the bottom positioning groove 200. That is, the glue in the third glue storage tank 202 improves the fixing strength with the circuit intermediate portion 30, and at the same time, a third pin hole is provided in the circuit intermediate portion 30 to facilitate the insertion positioning of the third positioning pin 201.
A rear support portion 23 is connected to the rear side of the middle supporting portion 20, the upper side of the inclined supporting portion 22 is connected to the rear support portion 23, the rear side of the side end supporting portion 21 is connected to the rear support portion 23, the middle supporting portion 20, the rear support portion 23, the inclined supporting portion 22 and the side end supporting portion 21 form a single carrier accommodating space in a surrounding manner, and the single carrier 4 is installed in the single carrier accommodating space through an elastic support mechanism.
Two elastic piece accommodating spaces are arranged between the single carrier 4 and the base 2, one elastic piece 5 accommodating space is positioned between one end of the Y axis of the single carrier and one end of the Y axis of the base, and the other elastic piece 5 accommodating space is positioned between the other end of the Y axis of the single carrier and the other end of the Y axis of the base;
further, a fourth glue reservoir 230 is provided on the rear surface and/or the top of the rear support 23. A fifth glue storage groove 215 is formed on the top and/or the outer surface of the side end bearing part 21. The glue in the fourth glue storage tank 230 and the fifth glue storage tank 215 can improve the connection strength with the shell 1 and prevent the glue from falling off.
As shown in fig. 1 to 4, the base 2 is installed in the housing 1, and in order to improve the assembling efficiency of the housing 1 and the base 2 and prevent mutual displacement, a projection 214 is connected to the front side of each side end bearing portion 21.
Specifically, the housing 1 includes a housing 10 having a cavity therein for accommodating an optical component driving mechanism;
the housing 10 is made of a metal material, such as a sheet metal material or the like, which has excellent rigidity to function as a protection and support fixture or the like. Of course, non-metallic materials may be applied to the present embodiment as long as they can satisfy the above requirements.
A light incident port 100 provided at the top side of the case 10 and communicating with the cavity;
a light exit port 101 provided in the circumferential direction of the housing 10 and penetrating the light entrance port 100, the light exit port 101 communicating with the cavity;
preferably, the light entrance port 100 of the present embodiment is a U-shaped port, and the light exit port 101 is also a U-shaped port, which are connected to each other to facilitate the manufacturing of the housing and the assembly and disassembly of the final prism.
And a functional hole 102 provided in the housing 10 and for restricting displacement of the optical component drive mechanism relative to the housing 10. The shape of the functional hole 102 is any one or a combination of a plurality of elliptical holes, square holes, triangular holes and T-shaped holes, and of course, other special-shaped holes may also be used, and the shape of the functional hole is not illustrated in an excessive way in this embodiment.
That is, the optical component driving mechanism has a corresponding protrusion 214 capable of extending into the functional hole 102 and matching with the functional hole 102, and the optical component driving mechanism is pre-positioned and limited by the functional hole 102 in the subsequent post-processing process, and the optical component driving mechanism will not be displaced, thereby solving the problems of low assembly efficiency, poor quality, high rejection rate, and the like.
Preferably, the functional holes 102 of the present embodiment are two and distributed on both sides of the light exit port 101. The two functional holes 102 can provide a horizontal positioning, and prevent the displacement phenomenon caused by the design of a single hole, especially a single round hole, namely, when the round holes are selected, the number of the round holes is designed to be two.
The arrangement on both sides can facilitate the installation of the optical component driving mechanism to improve the assembly efficiency.
Preferably, the housing 10 of the present embodiment is rectangular, but may be square or other shapes. The rectangular structure can reduce the whole volume as much as possible, and is applied to various camera devices such as mobile phones and the like.
Preferably, the light exit port 101 of the present embodiment is disposed on one of two opposite peripheral side surfaces of the housing 10, and the peripheral side surface is a front side surface.
Next, one of the function holes 102 is provided in the long peripheral side surface, and the other function hole 102 is provided at a corner of the long peripheral side surface and the short peripheral side surface adjacent to the long peripheral side surface. The above distribution mode can make the whole structure more stable, namely, after the convex part of the optical component driving mechanism is matched, the convex part can strengthen different side surfaces of the circumferential direction of the shell.
Specifically, the housing 10 of the present embodiment includes a first housing 10a and a second housing 10b that are fitted to each other; to facilitate assembly of the optical component drive mechanism.
The light incident port 100 is provided at the top of the first housing 10 a;
a first sub-port communicating with the light entrance port 100 is provided on the front side of the first casing 10a, and a second sub-port communicating with the first sub-port is provided on the front side of the second casing 10b, the first sub-port and the second sub-port forming the light exit port 101.
Secondly, the first casing 10a has a first opening;
the second housing 10b has a second opening opposite to the first opening, which is designed to facilitate the mating connection of the two.
In addition, the functional hole 102 includes a first half opening disposed on the first opening, a second half opening corresponding to the first half opening is disposed on the second opening, and the first half opening and the second half opening form the functional hole 102.
Furthermore, the first casing 10a and the second casing 10b are connected together by a local sleeving connection structure 10c, so that a local end surface of the first casing 10a close to the first open end and a local end surface of the second casing 10b close to the second open end are distributed at intervals. The spacing prevents the protrusions of the optical component drive mechanism from being difficult to extend into the functional holes 102 (due to machining errors) as a result of contact mating of the two.
Since one of the two function holes 102 is provided at the corner of the long peripheral side surface and the short peripheral side surface adjacent to the long peripheral side surface, in order to ensure the assembling efficiency and the structural stability, the local sleeved connection structure 10c of the present embodiment is an L-shaped local sleeved connection structure, and the local sleeved connection structure 10c is located at the corner of the other long peripheral side surface and the short peripheral side surface adjacent to the long peripheral side surface. Specifically, the local sleeving connection structure 10c includes an L-shaped sleeving edge 100c, the L-shaped sleeving edge 100c is disposed on the first open rear side of the first casing 10a and the first open short side of the first opening far away from the first half opening of the corner, that is, the first open caliber is larger than the second open.
A first avoiding hole 103 is formed at one end of the housing 10 in the length direction for allowing the circuit board of the optical component driving mechanism to extend out of the electrical connection terminal for electrical connection. The first avoiding hole 103 is provided at a lower position of one end of the second housing 10 b.
A second escape hole 104 is provided at the bottom of the housing 10. The second avoidance hole 104 is disposed at the bottom center of the second casing 10b, and plays roles of heat dissipation, dispensing, and base dispensing avoidance, installation avoidance, and the like.
As shown in fig. 11 to 13, in order to improve the driving efficiency and stability, the present embodiment is provided with a Y-axis electromagnetic driving mechanism and a tilt-type X-axis electromagnetic driving mechanism to drive the single carrier 4. Specifically, as shown in fig. 10 to 13, the Y-axis electromagnetic driving mechanism includes two Y-axis driving magnets 6a disposed in the X-axis direction of the single carrier 4, a Y-axis coil 6b is provided on an inner surface of each of the Y-axis driving magnets 6a at an interval, and the Y-axis coil 6b is fixed to the circuit board 3.
Preferably, two Y-axis mounting holes 414 are formed in the circumferential outer surface of the single carrier 4 along the X-axis direction of the single carrier 4, and one Y-axis drive magnet 6a is fixed in each Y-axis mounting hole 414.
A Y-axis coil 6b is fixed on the inner surface of the circuit board 3 facing the circuit side portions 31, and the single carrier 4 can rotate around the Y-axis by energizing the Y-axis coil 6b and driving the magnet 6a along the Y-axis, so as to achieve the purpose of adjusting the position.
Specifically, the X-axis electromagnetic driving mechanism includes a tilted X-axis driving magnet 6d, the X-axis driving magnet 6d is fixed to a rear inclined surface of the intermediate inclined portion 40 of the single carrier 4, a tilted X-axis coil 6c is provided on the circuit inclined portion 32 of the circuit board 3, the X-axis coil 6c is fixed to an inclined surface of the circuit inclined portion 32, and the X-axis driving magnet 6d is inserted into the X-axis coil 6 c. The rear-side inclined surface is parallel to the inclined surface of the circuit inclined portion 32.
The axis line of the X-axis coil 6c is perpendicular to the inclined surface.
The two Y-axis driving magnets are positioned between the two Y-axis coils.
The axis of the X-axis drive magnet 6d coincides with the axis of the X-axis coil 6c to ensure drive stability.
The axis of the X-axis driving magnet 6d extends towards the incident light axis RS and intersects with the incident light axis RS, and the two axes form an obtuse included angle RS 0. Since the axis of the X-axis driver magnet 6d coincides with the axis of the X-axis coil 6c, that is, the axis of the X-axis coil 6c and the incident light axis RS also form an obtuse included angle, the obtuse included angle RS0 in this embodiment is 135 °. The combination of the two electromagnetic driving modes cooperates with the elastic supporting mechanism to reduce the posture difference in the X/Y axis direction. The incident optical axis RS is the prism incident optical axis.
The structure of the single carrier 4 is further set out as follows:
as shown in fig. 12 to 15, the single carrier 4 includes an intermediate inclined portion 40 for fixing the X-axis drive magnet 6d whose inclination direction coincides with the inclination direction of the intermediate inclined portion 40. The X-axis driving magnet 6d cooperates with the X-axis coil 6c on the circuit inclined portion 32 to rotate the single carrier 4 around the X-axis, thereby achieving angle adjustment and greatly improving adjustment efficiency and adjustment accuracy.
Two side positioning parts 41, which are oppositely distributed, are connected to both ends of the intermediate inclined part 40, so that the side positioning parts 41 and the inside of the intermediate inclined part 40 form an optical component accommodating space, such as a prism L0.
Preferably, the rear-side inclined surface of the intermediate inclined portion 40 is used for fixing the X-axis drive magnet 6d, and further, an inclined positioning hole 410 for fixing the X-axis drive magnet 6d is provided at the rear-side inclined surface of the intermediate inclined portion 40. Further, the rear inclined surface of the intermediate inclined portion 40 is provided with an inclined protrusion 411 projecting rearward, the inclined protrusion 411 is provided with the above-mentioned inclined positioning hole 410, the axis of the inclined positioning hole 410 coincides with the axis of the X-axis drive magnet 6d, and the axis of the inclined positioning hole 410 extends toward the incident optical axis RS and intersects with the incident optical axis RS, forming an obtuse included angle RS 0.
A bottom glue storage groove 412 is formed at the bottom of the inclined positioning hole 410 to improve the connection firmness with the X-axis drive magnet 6 d.
Secondly, the contact protrusions 413 are formed on the wall of the inclined positioning hole 410 along the axial direction of the inclined positioning hole 410, which obviously reduces the contact surface with the X-axis drive magnet 6d to improve the installation efficiency of the X-axis drive magnet 6 d.
Preferably, the inclined positioning holes 410 are rectangular holes.
A Y-axis mounting hole 414 for mounting the Y-axis driving magnet 6a is respectively formed in the outer surface of each lateral positioning portion 41, and the Y-axis driving magnet 6a can drive the Y-axis position of the single carrier 4 in cooperation with the Y-axis coil 6b after being mounted in the Y-axis mounting hole 414.
As shown in fig. 9-10, the elastic support mechanism further includes two elastic pieces 5, one of the elastic pieces is disposed in one of the elastic piece accommodating spaces and is connected to the single carrier and the base, and the other elastic piece is disposed in the other elastic piece 5 accommodating space and is connected to the single carrier and the base.
The two elastic pieces 5 are distributed along the incident optical axis direction of the optical component, preferably, the two elastic pieces 5 are located on the same longitudinal plane along the incident optical axis RS direction, the longitudinal plane and the incident optical axis RS are distributed at intervals, or the incident optical axis RS is located on the longitudinal plane, and the positions of the elastic pieces can be set according to the actual gravity center position. The two elastic sheets 5 are symmetrically distributed with the incident light axis RS. So as to play a symmetrical elastic supporting role.
In addition, as shown in fig. 14-15, a spring plate fixing portion 415 is disposed in one spring plate accommodating space, the spring plate fixing portion 415 is fixed on the single carrier 4, one end of a corresponding spring plate in each spring plate accommodating space is connected to the spring plate fixing portion, and the other end of the spring plate 5 is connected to the base. Each lateral positioning portion 41 of the single carrier 4 is further provided with the spring fixing portion 415 for arranging the spring 5 along the incident optical axis RS, and the two spring fixing portions 415 are symmetrically distributed about the incident optical axis.
Each spring piece fixing portion 415 fixes one spring piece 5, the two spring pieces 5 are located on the same longitudinal surface along the direction of the incident light axis RS, and each spring piece 5 is connected with the base 2, that is, the two spring pieces 5 are longitudinally arranged and support the single carrier 4. By the mode, double-axis rotation can be realized, the attitude difference in the X/Y axis direction is very small, and meanwhile, the X/Y axis shares the carrier, so that the problem of poor FRA (shaking) can be effectively solved.
Preferably, the spring plate fixing part 415 of the present embodiment includes longitudinal fixing planes 415a arranged along the direction of the incident optical axis RS, and the two longitudinal fixing planes 415a are located on the same longitudinal plane along the direction of the incident optical axis RS.
Secondly, each longitudinal fixing plane 415a is provided with a positioning post 415b to facilitate accurate positioning and fixing of the elastic sheet 5, and the longitudinal fixing plane 415a and the positioning post 415b are vertically connected.
The longitudinal fixing plane 415a is located on the longitudinal bisecting plane or in the central position of the respective lateral positioning portion 41.
In addition, an outer boss 416 is provided on the rear side of the outer surface of each lateral positioning portion 41, and the above-mentioned Y-axis mounting hole 414 is provided on the outer surface of each outer boss 416 away from the lateral positioning portion 41. The two outer bosses 416 are symmetrically distributed.
Meanwhile, in order to improve the mounting accuracy and the mounting efficiency, a magnet directional mounting structure is provided between the Y-axis drive magnet 6a and the lateral positioning portion 41.
Specifically, as a first aspect, the magnet orientation mounting structure includes:
two Y-axis mounting holes 414 are formed and respectively disposed at two ends of the X-axis of the single carrier 4;
two Y-axis driving magnets 6a fixed one by one in the Y-axis mounting hole 414;
two orientation notches 414a are arranged on the wall of the Y-axis mounting hole respectively;
and two orientation protrusions 60a are clamped in the orientation notches 414a one by one, and the outer edge of each Y-axis driving magnet is connected with one orientation protrusion.
That is, an orientation notch 414a is provided on the hole wall of each Y-axis mounting hole 414, and an orientation protrusion 60a that is fitted into the orientation notch 414a is provided in the circumferential direction of the Y-axis drive magnet 6 a.
Preferably, an inner connecting block 61a is provided on an inner surface of each Y-axis drive magnet 6a, and the orientation protrusion 60a is provided on one circumferential side of the inner connecting block 61 a.
A Y-axis glue storage groove 414b is formed in the bottom of the Y-axis mounting hole 414, the inner connecting block 61a is fixed in the Y-axis mounting hole 414 by glue filled in the Y-axis glue storage groove 414b, and the Y-axis driving magnet 6a and the inner connecting block 61a are fixed by glue connection or the like. Except for the position of the orientation projection 60a, the circumferential side of the Y-axis drive magnet 6a is flush with the circumferential side of the inner connecting block 61a for easy mounting and fixing.
The hole wall of the Y-axis mounting hole 414 is provided with a plurality of inner protruding ribs 414c arranged along the axial direction of the Y-axis mounting hole 414, which can reduce the contact surface with the Y-axis driving magnet 6a and the inner connecting block 61a, thereby improving the mounting efficiency, and of course, the fixing fastness of the Y-axis driving magnet 6a can be further improved by adding glue into the groove formed between two adjacent inner protruding ribs.
The directional notches 414a on the hole walls of the two Y-axis mounting holes 414 are symmetrically arranged or staggered front and back.
As a second scheme: the directional mounting structure of magnetite includes:
two Y-axis mounting holes 414 are formed and respectively arranged at two ends of the X axis of the single carrier;
two Y-axis driving magnets 6a are fixed in the Y-axis mounting holes one by one;
two orientation notches 414a are arranged on the outer edge of the Y-axis drive magnet respectively;
and two directional protrusions 60a are clamped in the directional notches one by one, and the hole wall of each Y-axis mounting hole is connected with one directional protrusion.
As a third aspect, a magnet orientation mounting structure includes:
two Y-axis mounting holes are formed and are respectively arranged at two ends of the X axis of the single carrier;
two Y-axis driving magnets are fixed in the Y-axis mounting holes one by one;
two orientation notches are arranged, wherein one orientation notch is arranged on the wall of one Y-axis mounting hole, and the other orientation notch is arranged on the outer edge of one Y-axis driving magnet;
the number of the directional protrusions is two, one directional protrusion is arranged on the hole wall of the other Y-axis mounting hole, and the other directional protrusion is arranged on the hole wall of the other Y-axis mounting hole;
the orientation bulge is clamped in the corresponding orientation notch.
The connection position of the front side surface of the outer boss 416 and the lateral positioning portion 41 is provided with a positioning boss 417, the longitudinal fixing plane 415a is arranged on the front side surface of the positioning boss 417, and the positioning boss 417 plays a role in suspending and prevents the elastic sheet 5 from contacting the single carrier 4.
The centering of the locating boss 417 on the front side of the outer boss 416 ensures a balanced center of gravity.
Specifically, as shown in fig. 16, the structure of each elastic sheet 5 includes:
the contact part 50 is fixed on the longitudinal fixing plane in a fitting manner and contacts with the longitudinal fixing plane 415a, a column hole 500 for inserting the positioning column 415b is formed in the contact part 50, and the positioning column 415b is inserted into the column hole 500 to realize pre-positioning.
An upper wrist portion 51 having one end connected to an upper side of the contact portion 50;
a lower wrist portion 52 having one end connected to a lower side of the contact portion 50; the upper wrist portion 51 and the lower wrist portion 52 are symmetrically distributed.
Specifically, the upper wrist portion 51 includes an upper intermediate portion 511 having an upper L-shaped outer deformation space 510, one end of the upper intermediate portion 511 is connected to the upper side of the contact portion 50 through an upper longitudinal portion 512, and the other end of the upper intermediate portion 511 is connected to the upper end of the base connecting portion 53 through an upper transverse portion 513.
The lower wrist portion 52 includes a lower intermediate portion 521 having a lower L-shaped outer deformation space 520, one end of the lower intermediate portion 521 is connected to the lower side of the contact portion 50 by a lower longitudinal portion 522, and the other end of the lower intermediate portion 521 is connected to the lower end of the base connecting portion 53 by a lower transverse portion 523. The upper middle part 511 and the lower middle part 521 are symmetrically distributed, the upper longitudinal part 512 and the lower longitudinal part 522 are positioned on the same straight line, and the upper transverse part 513 and the lower transverse part 523 are parallel to each other.
The contact part 50, the upper wrist part 51, the lower wrist part 52 and the base connecting part 53 surround the inside to form an inner closed deformation space 54 with a small middle and two large ends.
The upper L-shaped outer deformation space 510 and the lower L-shaped outer deformation space 520 are symmetrically distributed.
Utilize along two shell fragments 5 that incident optical axis RS direction set up, X axle electromagnetic drive mechanism and the Y axle electromagnetic drive mechanism of tilting in coordination, can realize the biax position rotation regulation to single carrier 4, the biax is X axle and Y axle promptly to and make X/Y axle direction appearance difference very little, simultaneously, X/Y axle sharing carrier can effectively solve FRA (rock) bad problem.
Next, as shown in fig. 6, the base 2 is provided with a mounting longitudinal surface 216, the mounting longitudinal surface 216 has two positions, specifically, the front side surface of each side end bearing portion 21 of the base 2 is provided with the mounting longitudinal surface 216 for mounting the base connecting portion 53, the lower end of the mounting longitudinal surface 216 is provided with a lower stud 217, the lower end of the base connecting portion 53 is connected with a stud hole 530, the base connecting portion 53 fits on the mounting longitudinal surface 216, and the lower stud 217 is inserted into the stud hole 530.
In addition, as shown in fig. 9, a longitudinal groove 418 and/or a transverse groove 419 are provided on the inner surface of the side positioning part 41 for weight reduction and for facilitating installation of the prism L0. Next, inclined ribs 400 having an inclination direction identical to that of the intermediate inclined portion 40 are respectively provided at both sides of the front inclined surface of the intermediate inclined portion 40, the inclined ribs 400 and the inner surfaces of the corresponding lateral positioning portions 41 form inclined glue storage grooves 401, and the prism L0 is placed on the inclined ribs 400 and the prism L0 is fixed on the intermediate inclined portion 40 using glue in the inclined glue storage grooves 401.
Each side of the front inclined surface of the intermediate inclined portion 40 is provided with two inclined ribs 400, and the two inclined ribs 400 on the same side are symmetrically distributed.
In order to make the operation more reliable, the present embodiment is further provided with a movement limiting structure. Specifically, the movement limiting structure is a limiting structure in three directions of X, Y and Z, as shown in fig. 9 and fig. 14-15, the Z-direction limiting structure is arranged at two ends of the carrier in the Z-axis direction, and comprises a Z-axis rear limiting bump 2b arranged on the rear side surface of the single carrier 4, a Z-axis elastic layer or a Z-axis front limiting bump 2c is arranged on the front side of the single carrier 4, the Z-axis rear limiting bump 2b can play a role in limiting the backward movement of the single carrier 4 to be in contact with the base 2 to form protection, and the Z-axis elastic layer or the Z-axis front limiting bump 2c can play a role in limiting the forward movement of the single carrier 4 to be in contact with the inner wall of the housing 1 to form protection.
The X-direction limiting structures are arranged at two ends of the carrier in the X-axis direction and comprise X-axis convex limiting blocks 4a on two symmetrical outer surfaces of the single carrier 4. The X-direction limiting structure can protect the single carrier 4 from contacting the base 2 after limited movement along the Y axis.
The Y-direction limiting structures are arranged at two ends of the carrier in the Y-axis direction and comprise Y-axis convex limiting blocks 4b arranged at the top of the single carrier 4, and the Y-axis convex limiting blocks 4b can be in contact with the shell 1 to form protection after the single carrier 4 moves in the X-axis direction.
The Z-axis rear-side restriction projection 2b is provided on the top side of the rear-side surface of the single carrier 4.
The Z-axis elastic layer or the Z-axis front side restriction bump 2c is provided at an upper and/or lower position of the front side surface of the single carrier 4.
The Y-axis convex limiting blocks 4b are arranged at two ends of the U-shaped top surface of the single carrier 4.
The limiting structure can ensure the use stability of the XY-axis electromagnetic driving mechanism, ensure the service life and avoid the damage caused by single-carrier collision.
In order to make the running position of the individual carriers 4 more accurate, the present embodiment is provided with a position detecting mechanism, as shown in fig. 10 and 12 to 13, which includes a first position detecting mechanism and a tilt position detecting mechanism, and specifically, the first position detecting mechanism includes a first position sensor 4c provided on at least one circuit side portion 31, the first position sensor 4c is located in the Y-axis coil 6b, and the first position sensor 4c is spaced apart from the Y-axis drive magnet 6a, which is spaced apart from the Y-axis coil 6b, to detect the position of the individual carrier 4 connected to the Y-axis drive magnet 6 a.
The tilt position detection mechanism includes a tilt position sensor 4d provided on the circuit tilt portion 32, and the tilt position sensor 4d and the tilt X-axis drive magnet 6d are spaced apart from each other to detect the position of the single carrier 4 connected to the X-axis drive magnet 6 d.
Preferably, the first position sensor 4c and the position sensor 4d of the present embodiment are both hall sensors.
Next, the position sensor 4d is fixed to the rear inclined surface of the circuit inclined portion 32. The position sensor 4d and the first position sensor 4c perform closed-loop feedback control.
The working principle is as follows:
as shown in fig. 22 to 23, the circuit board 3 is energized to supply power to the X-axis coil 6c and the Y-axis coil 6 b;
rotation of an X axis: when the X-axis coil 6c is energized, the X-axis driving magnet 6d (taking a unipolar magnet as an example) generates electromagnetic thrust, that is, the first electromagnetic thrust xF1 and the second electromagnetic thrust xF2 are opposite in direction to the first electromagnetic thrust xF1 and the second electromagnetic thrust xF2, so that the single carrier can be driven to rotate counterclockwise or clockwise (change the current direction) around the X-axis.
The single carrier 4 is rotated around the X axis relative to the two spring plates 5 by the combined action of the two spring plates 5 and the first electromagnetic thrust xF1 and the second electromagnetic thrust xF2, that is, the prism on the single carrier 4 can be driven to rotate around the X axis relative to the base 2.
Rotation of the Y shaft: one Y-axis coil 6b is opposite to one Y-axis driving magnet 6a, the phases of the two Y-axis coils 6b distributed at two ends of the single carrier 4 are opposite when the power supply is connected, namely, one Y-axis coil 6b and the Y-axis driving magnet 6a opposite to the Y-axis coil 6b generate a first Lorentz magnetic force Y-Fv1 distributed along the Z-axis direction, the other Y-axis coil 6b and the Y-axis driving magnet 6a opposite to the Y-axis coil generate a second Lorentz magnetic force Y-Fv2 distributed along the Z-axis direction, the first Lorentz magnetic force Y-Fv1 and the second Lorentz magnetic force Y-Fv2 are opposite, and the single carrier 4 rotates around the Y-axis relative to the two spring pieces 5, namely, the prism on the single carrier 4 can be driven to rotate around the Y-axis relative to the base 2.
The above-described drive effects simultaneous movement of the single carrier 4 about the X-axis and the Y-axis.
The X-axis electromagnetic drive and the Y-axis electromagnetic drive share a rotation center (namely, a single carrier 4), and the design of the two elastic sheets 5 is cooperated to realize the double-axis rotation of the single carrier 4 and to enable the controlled rotation in the X/Y direction, so that the posture difference in the X/Y direction can be very small, see the attached figures 20-21.
When the X-axis driving mechanism drives the single carrier to rotate around the X-axis and realize the up-and-down nodding of the prism on the single carrier, each elastic sheet is connected with the single carrier by adopting a connection point (one contact part corresponds to one elastic sheet fixing part), only two torque stress points exist on the single carrier along the X-axis at the moment, the single carrier can be pushed to rotate by an angle of 1.5 degrees by the X-axis rotating torque of the X-axis rotating mechanism only by 9.97 electromagnetic torque force, the single carrier can be pushed to reach the same angle by utilizing very small torque force, the manufacturing cost can be greatly reduced while the torque force is greatly reduced, the manufacturing and processing difficulty can be greatly reduced, the internal space can be further saved, and the purpose of microminiaturization application can be achieved.
Secondly, this application utilizes the structure of two stress points, and it can enlarge the turned angle of single carrier around the X axle to satisfy the refraction light efficiency correction requirement and the service behavior of bigger angle.
In addition, this application utilizes two stress points, and it has not only improved single carrier by a wide margin around the pivoted sensitivity of X axle, has also improved prism by a wide margin to the correction efficiency of refraction light, and the design is more reasonable.
Fig. 19 shows that the torque of the X-axis is more stable in the present embodiment, while the torque of the Y-axis is not significantly different and is more stable.
Fig. 20 shows that, by comparison, the X thrust of the present embodiment is smaller within the rotation angle of 1.5 °, which can reduce the manufacturing cost and difficulty.
Example two
On the basis of the first embodiment, as shown in fig. 4 and 9, the present invention further provides an optical component driving mechanism L, arrows in the drawing represent the light incident and light emitting directions, and the optical component driving mechanism is used to adjust the position of the prism L0 along the X/Y axes to meet the use requirement. The present embodiment has the housing 1 and the base 2 as described in the first embodiment, the circuit board 3 is fixed on the base 2, the single carrier accommodating space is provided in the base 2, the single carrier 4 is installed in the single carrier accommodating space through the elastic supporting mechanism, and the present embodiment is provided with the Y-axis electromagnetic driving mechanism and the inclined X-axis electromagnetic driving mechanism to drive the single carrier 4.
EXAMPLE III
On the basis of the second embodiment, as shown in fig. 17, the present invention further provides an image pickup apparatus having the optical component driving mechanism L and the lens driving mechanism T as described in the second embodiment, the lens driving mechanism T is located at the light exit port 101, and the optical path is changed by the optical component driving mechanism L and the lens driving mechanism T cooperate with each other, so that high-precision ultra-definition image pickup operation can be realized.
Example four
On the basis of the third embodiment, as shown in fig. 18, the present invention further provides an electronic device, such as a mobile phone, having the imaging device according to the third embodiment.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (13)
1. The elastic supporting mechanism is characterized by comprising a single carrier positioned in the base, an
The number of the elastic piece accommodating spaces is two, one elastic piece accommodating space is positioned between one end of the X axis of the single carrier and one end of the X axis of the base, and the other elastic piece accommodating space is positioned between the other end of the X axis of the single carrier and the other end of the X axis of the base;
the elastic sheet comprises two pieces, one piece is arranged in one elastic sheet accommodating space and is respectively connected with the single carrier and the base, and the other piece is arranged in the other elastic sheet accommodating space and is respectively connected with the single carrier and the base;
the two elastic sheets are positioned on the same longitudinal surface along the direction of the incident optical axis.
2. The resilient support mechanism of claim 1, wherein the two resilient plates are symmetrically disposed about the incident optical axis.
3. The elastic support mechanism according to claim 1 or 2, wherein the resilient member comprises: a contact portion in a sheet shape;
an upper wrist part, one end of which is connected with the upper side of the contact part;
a lower wrist part, one end of which is connected with the lower side of the contact part;
and the base connecting part is respectively connected with the other end of the upper wrist part and the other end of the lower wrist part.
4. The elastic support mechanism of claim 3, wherein the upper wrist portion and the lower wrist portion are symmetrically disposed.
5. The elastic support mechanism according to claim 3, wherein the contact portion, the upper wrist portion, the lower wrist portion and the base connecting portion enclose an inner closed deformation space with a small middle and two large ends.
6. The elastic support mechanism according to claim 5, wherein the upper arm portion has an upper L-shaped outer deformation space, the lower arm portion has a lower L-shaped outer deformation space, and the upper L-shaped outer deformation space and the lower L-shaped outer deformation space are symmetrically distributed.
7. The resilient support mechanism of claim 3, further comprising: the elastic piece fixing parts are arranged in two elastic piece accommodating spaces, one elastic piece fixing part is arranged in one elastic piece accommodating space, the elastic piece fixing parts are fixed on the single carrier, the contact parts of the corresponding elastic pieces in each elastic piece accommodating space are connected to the elastic piece fixing parts, and the base connecting parts of the elastic pieces are connected with the base.
8. The flexible support mechanism of claim 3 wherein the base has a longitudinal mounting surface and the base attachment portion is secured to the longitudinal mounting surface.
9. The elastic support mechanism according to claim 7, wherein a longitudinal fixing plane is provided on each of the leaf spring fixing portions, and the contact portion is snugly fixed on the longitudinal fixing plane.
10. The resilient support mechanism of claim 1, wherein the longitudinal surface is spaced from the axis of incidence or the axis of incidence is on the longitudinal surface.
11. Optical component drive mechanism, characterized by a resilient support mechanism as claimed in any of the claims 1-10 above.
12. An image pickup apparatus having the optical member driving mechanism according to claim 11.
13. An electronic apparatus, characterized by having the imaging device according to claim 12.
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| CN113093360B (en) | 2024-02-27 |
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