CN214041899U - Periscopic anti-shake focusing actuator and image pickup apparatus - Google Patents
Periscopic anti-shake focusing actuator and image pickup apparatus Download PDFInfo
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- CN214041899U CN214041899U CN202023099635.1U CN202023099635U CN214041899U CN 214041899 U CN214041899 U CN 214041899U CN 202023099635 U CN202023099635 U CN 202023099635U CN 214041899 U CN214041899 U CN 214041899U
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Abstract
The utility model discloses a periscopic anti-shake focusing actuator and camera equipment, wherein the periscopic anti-shake focusing actuator comprises a lens frame, and a plurality of magnetic blocks are fixedly arranged at the bottom of the lens frame; the lens frame is movably arranged on the fixed part, the magnetic blocks are in magnetic attraction connection with the fixed part, the fixed part is provided with an elastic arm, the free end of the elastic arm is abutted against the movable part, and the elastic arm is used for driving the lens frame to move along the direction of an optical axis of a lens or in the direction vertical to the optical axis; one end of the memory alloy wire is connected with the fixing part, the other end of the memory alloy wire is connected with the elastic arm, and the distance from the connecting point of the memory alloy wire and the elastic arm to the fixed end of the elastic arm is smaller than the arm length of the elastic arm. According to the utility model discloses a periscope formula anti-shake focuses actuator, simple structure occupies smallly, and the setting of memory alloy line drive elastic arm has utilized lever principle, has enlarged the drive stroke, can focus better and anti-shake mends and mends.
Description
Technical Field
The utility model relates to a technical field of make a video recording, in particular to periscope formula anti-shake focuses actuator and camera equipment.
Background
Nowadays, people have higher and higher requirements for miniaturization and shooting of shooting equipment, and the demands for periscopic lens modules are also higher and higher; because people need to use more and more scenes for shooting at present, the requirements of anti-shake and automatic focusing functions of the photographic equipment are high. Focusing and anti-shaking of the existing periscopic lens module are mostly driven by two actuators respectively, the structure is complex, the volume is large, and miniaturization of the lens module is not facilitated; the conventional anti-shake driving structure and focusing driving structure have limited stroke and limited focusing effect and shake correction effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a periscopic formula anti-shake actuator of focusing, can drive the camera lens simultaneously and focus and anti-shake and mend, simple structure occupies smallly, and has great drive stroke.
According to the utility model discloses periscopic anti-shake actuator of focusing of first aspect embodiment includes:
the bottom of the mirror body frame is fixedly provided with a plurality of magnetic blocks;
the lens frame is movably arranged on the fixing part, the magnetic blocks are in magnetic attraction connection with the fixing part, the fixing part is provided with an elastic arm, the free end of the elastic arm is abutted against the lens frame, and the elastic arm is used for driving the lens frame to move along the direction of a lens optical axis or in the direction vertical to the optical axis;
one end of the memory alloy wire is connected with the fixing part, the other end of the memory alloy wire is connected with the elastic arm, and the distance from the connection point of the memory alloy wire and the elastic arm to the fixed end of the elastic arm is smaller than the arm length of the elastic arm.
According to the utility model discloses periscopic anti-shake actuator of focusing has following technological effect at least: the periscopic lens module is arranged in the lens frame, and controls the memory alloy wire to contract to pull the elastic arm to push the lens frame by electrifying the memory alloy wire, so that the lens frame is controlled to translate along the optical axis direction to control the lens frame to focus or controlled to translate transversely along the direction vertical to the optical axis to correct jitter; the memory alloy wire and the elastic arm are used for controlling the mirror body frame to move horizontally so as to realize focusing and anti-shake, the structure is simple, the occupied size is small, the memory alloy wire drives the elastic arm to be arranged by utilizing the lever principle, the driving stroke is enlarged, and the focusing, anti-shake and correction can be better carried out; fixed through magnetism between mirror body frame and the fixed part for being connected between mirror body frame and the fixed part is more firm, and moves more stably between the relative fixed part of mirror body frame, prevents to take place the condition of mirror body frame perk at the in-process of translation.
According to some embodiments of the present invention, the two sides of each of two opposite corners of the fixing portion are provided with the connecting portion, and the two sides of each of the other two opposite corners of the fixing portion are provided with the elastic arm; the memory alloy wires are provided with four wires, one end of each memory alloy wire is connected with the corresponding elastic arm, and the other end of each memory alloy wire is connected with the connecting part which is arranged opposite to the corresponding elastic arm.
According to some embodiments of the utility model, the bottom of mirror body frame is provided with two pairs of lugs, and is every right the lug sets up respectively the middle part of the relative both sides of the bottom of mirror body frame, four the elastic arm respectively with four the lug butt.
According to the utility model discloses a some embodiments, the mirror body frame still is provided with a plurality of mounting grooves, and is a plurality of the mounting groove sets up respectively four sides of the bottom of mirror body frame, and is a plurality of the magnetism piece inlays the dress with one-to-one in a plurality of in the mounting groove.
According to some embodiments of the utility model, the mirror body frame with still be provided with a plurality of bearings between the fixed part, it is a plurality of the bearing is followed symmetrically the direction of motion of mirror body frame sets up on the fixed part, the bottom of mirror body frame is with a plurality of bearing sliding connection.
According to some embodiments of the utility model, the mirror body frame still is provided with a plurality of antifriction plates, and is a plurality of the antifriction plate sets up respectively the mirror body frame with the position that the bearing is connected.
According to some embodiments of the present invention, the fixing part includes a conductive plate, a base plate, and a soft magnetic sheet, a lower end surface of the conductive plate is connected to the base plate, and the soft magnetic sheet is connected to the base plate; the conducting plate includes a plurality of electrically conductive units, and every connecting portion set up on a corresponds electrically conductive unit, every adjacent two the elastic arm sets up on a corresponds electrically conductive unit, a plurality of electrically conductive unit with the base plate electricity is connected.
According to some embodiments of the present invention, the mirror body frame is provided with a plurality of through grooves, and the memory alloy wire is inserted into the through grooves.
According to some embodiments of the invention, the elastic arm comprises a connection portion and a deformation portion, the connection portion and the deformation portion being connected to form the entire elastic arm; the connecting part is vertically arranged on the fixing part, the deformation part is parallel to the mirror body frame, and the free end of the deformation part is abutted against the mirror body frame.
According to the utility model discloses an image pickup apparatus of second aspect embodiment includes according to the utility model discloses periscopic anti-shake focuses actuator of first aspect embodiment above-mentioned.
According to the utility model discloses camera equipment has following beneficial effect at least: through adopting foretell periscopic anti-shake to focus actuator, can increase the drive stroke in the camera equipment, have better focusing performance and anti-shake and mend the effect, and connect stably and remove steadily between the subassembly in the camera equipment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a perspective view of a periscopic anti-shake focusing actuator according to an embodiment of the present invention;
fig. 2 is a top view of a periscopic anti-shake focusing actuator according to an embodiment of the present invention;
fig. 3 is a bottom schematic view of a frame of a periscopic anti-shake focusing actuator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fixing portion and a memory alloy wire of a periscopic anti-shake focusing actuator according to an embodiment of the present invention.
Reference numerals: periscopic type anti-shake focusing actuator 100, mirror body frame 110, magnetic block 111, projection 112, mounting groove 113, wear plate 114, through groove 115, fixing part 120, elastic arm 121, connecting part 122, conductive plate 123, conductive unit 1231, base plate 124, soft magnetic sheet 125 and memory alloy wire 130.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A periscopic anti-shake focusing actuator 100 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 and 2, a periscopic anti-shake focusing actuator 100 according to an embodiment of the present invention includes a lens frame 110, a fixing portion 120, and a memory alloy wire 130. The mirror body frame 110 is provided with a plurality of magnetic blocks 111 fixedly arranged at the bottom of the mirror body frame 110; the lens frame 110 is movably arranged on the fixing portion 120, the magnetic blocks 111 are magnetically connected with the fixing portion 120, the fixing portion 120 is provided with an elastic arm 121, a free end of the elastic arm 121 abuts against the lens frame 110, and the elastic arm 121 is used for driving the lens frame 110 to move along the optical axis direction of the lens or perpendicular to the optical axis direction; one end of the memory alloy wire 130 is connected with the fixing part 120, the other end of the memory alloy wire 130 is connected with the elastic arm 121, and the distance from the connection point of the memory alloy wire 130 and the elastic arm 121 to the fixed end of the elastic arm 121 is smaller than the arm length of the elastic arm 121.
The fixing portion 120 is square, the mirror frame 110 is movably disposed on the fixing portion 120, and the mirror frame 110 is driven to slide on the fixing portion 120 along an X-axis direction and a Y-axis direction of a plane on which the fixing portion 120 is located, wherein the X-axis direction is perpendicular to the optical axis direction, and the Y-axis direction is the same as the optical axis direction. The bottom of the mirror body frame 110 is fixedly provided with four magnetic blocks 111, wherein two magnetic blocks 111 are respectively arranged at the middle positions of two opposite sides of the bottom of the mirror body frame 110, the other two magnetic blocks 111 are respectively arranged at the middle positions of two opposite sides of the bottom of the mirror body frame 110, and through the arrangement of the magnetic blocks 111, the periphery of the mirror body frame 110 is magnetically connected with the fixing part 120, so that the firmness of sliding connection between the mirror body frame 110 and the fixing part 120 is ensured, the mirror body frame is not easy to loosen or dislocate, and the situation that the side edge of the mirror body frame 110 tilts when the mirror body frame moves horizontally relative to the fixing part 120 is prevented; in other embodiments of the present invention, the number of the magnetic blocks 111 can be set to any number such as two, three, six, etc., and it is enough to ensure that the whole mirror body frame 110 can be stably connected to the fixing portion 120.
As shown in fig. 4, the elastic arms 121 are disposed corresponding to the memory alloy wires 130 one by one, the free ends of the elastic arms 121 abut against the side edges of the mirror frame 110, and the length of the memory alloy wires 130 can be precisely controlled by controlling the resistance of the memory alloy wires 130, so that the elastic arms 121 are controlled to push the mirror frame 110 to slide relative to the fixing portion 120, the sliding distance of the mirror frame 110 can be precisely controlled, and accurate focusing and good anti-shake correction can be achieved. The elastic arms 121 and the memory alloy can be provided with multiple groups, the multiple groups of elastic arms 121 in different directions are matched with the memory alloy wire 130, translation and reset of the mirror frame 110 are achieved, meanwhile, the elastic arms 121 on different side walls of the mirror frame 110 can clamp or drive the mirror frame 110, stability of the mirror frame 110 during translation is guaranteed, and the movement stroke of the mirror frame 110 is increased.
According to the periscopic type anti-shake focusing actuator 100 of the embodiment of the present invention, the lens frame 110 is movably disposed on the fixing portion 120, the periscopic lens module is installed in the lens frame 110, and by powering on the memory alloy wire 130, the memory alloy wire 130 is controlled to contract to pull the elastic arm 121 to push the lens frame 110, so as to control the lens frame 110 to translate along the optical axis direction to control the focusing or control the lens frame 110 to translate transversely along the direction perpendicular to the optical axis to correct the shake; the memory alloy wire 130 and the elastic arm 121 control the lens frame 110 to move horizontally to realize focusing and anti-shake, the structure is simple, the occupied size is small, the memory alloy wire 130 drives the elastic arm 121 to use the lever principle, the driving stroke is enlarged, and focusing and anti-shake correction can be better carried out; fixed through magnetism between mirror body frame 110 and the fixed part 120 for being connected between mirror body frame 110 and the fixed part 120 is more firm, and moves more stably between relative fixed part 120 of mirror body frame 110, prevents to take place the condition of mirror body frame 110 perk at the in-process of translation.
As shown in fig. 4, in some embodiments of the present invention, two opposite corners of the fixing portion 120 are provided with connecting portions 122 at two sides of each of the two opposite corners, and two opposite corners of the fixing portion 120 are provided with elastic arms 121 at two sides of each of the other two opposite corners; four memory alloy wires 130 are provided, one end of each memory alloy wire 130 is connected to the corresponding elastic arm 121, and the other end of each memory alloy wire 130 is connected to the connecting portion 122 opposite to the corresponding elastic arm 121. The connecting part 122 of each side of the fixing part 120 corresponds to the elastic arm 121 of the opposite side, two ends of each memory alloy wire 130 are respectively connected with a group of the connecting parts 122 and the elastic arms 121 which are opposite, and each memory alloy wire 130 is parallel to the side of the fixing part 120 where the memory alloy wire is; when focusing is needed, the two memory alloy wires 130 in the Y-axis direction are electrified and contracted, and the elastic arms 121 connected with the two memory alloy wires are driven to push the mirror frame 110 to translate along the Y-axis direction; when the shake compensation is needed, the two memory alloy wires 130 in the X-axis direction are electrified and contracted, and the elastic arm 121 connected with the two memory alloy wires is driven to push the mirror frame 110 to translate along the X-axis direction. Through the arrangement, the memory alloy wires 130 and the elastic arms 121 are symmetrically and orderly arranged, so that the mirror frame 110 can be more stably driven to translate; the memory alloy wires 130 arranged along different directions have different heights and are staggered with each other, and the memory alloy wires 130 are arranged to have different heights, so that the memory alloy wires 130 are prevented from being contacted or wound, and the memory alloy wires 130 are convenient to control.
As shown in fig. 2 and 3, in some embodiments of the present invention, two pairs of protrusions 112 are disposed on the bottom of the mirror body frame 110, each pair of protrusions 112 is disposed on the middle of two opposite sides of the bottom of the mirror body frame 110, and four elastic arms 121 abut against the four protrusions 112. The free end of every elastic arm 121 all is located the middle part of the side of its place fixed part 120, and the free end of every elastic arm 121 all with the mirror body frame 110 the middle part position of the side lug 112 butt promptly, through this setting, when elastic arm 121 promoted mirror body frame 110 and slides relative fixed part 120, guarantee that mirror body frame 110 is the straight line translation, difficult emergence is deflected, prevents that the skew from taking place for camera lens optical axis angle, influences the formation of image.
As shown in fig. 1 and 2, in some embodiments of the present invention, the mirror body frame 110 is further provided with a plurality of mounting grooves 113, the plurality of mounting grooves 113 are respectively disposed on four sides of the bottom of the mirror body frame 110, and the plurality of magnetic blocks 111 are embedded in the plurality of mounting grooves 113 in a one-to-one correspondence. The mounting grooves 113 are four, two of the mounting grooves 113 are respectively arranged at the middle positions of two sides of the mirror body frame 110 in the X-axis direction, the other two mounting grooves 113 are respectively arranged at the middle positions of two sides of the mirror body frame 110 in the Y-axis direction, the opening directions of the four mounting grooves 113 face upwards, the magnetic block 111 is embedded in the mounting grooves 113, the magnetic block 111 can be firmly mounted on the mirror body frame 110, and the phenomenon that the mirror body frame 110 is separated from the mirror body frame due to the magnetic attraction influence of the fixing part 120 is avoided. In other embodiments, the number of the mounting slots 113 may be any number corresponding to the number of the magnetic blocks 111, besides four.
In some embodiments of the present invention, a plurality of bearings are further disposed between the mirror frame 110 and the fixing portion 120, the plurality of bearings are symmetrically disposed on the fixing portion 120 along the moving direction of the mirror frame 110, and the bottom end of the mirror frame 110 is slidably connected to the plurality of bearings. Four bearings are arranged between the mirror frame 110 and the fixing part 120, each bearing is arranged between the lug 112 of the mirror frame 110 and the fixing part 120, the bearings are fixedly arranged on the fixing part 120, and the mirror frame 110 is connected with the bearings in a sliding manner; when the mirror frame 110 is driven by the elastic arm to translate, the bearing support reduces the contact area between the mirror frame 110 and the fixing portion 120, and the mirror frame 110 can better move relative to the fixing portion 120 in a labor-saving manner with the assistance of the bearing.
As shown in fig. 2 and 3, in some embodiments of the present invention, the mirror body frame 110 is further provided with a plurality of wear plates 114, and the wear plates 114 are respectively disposed at the positions where the mirror body frame 110 is connected to the bearings. The wear plates 114 are provided with four wear plates 114, each wear plate 114 is correspondingly arranged at the position of the four bosses 112, and the wear plates 114 completely cover the side surfaces to the bottom of the bosses 112; when the elastic arm 121 abuts against the boss 112, the wear plate 114 is provided in the middle as a buffer, and when the boss 112 is slidably coupled to the bearing, the boss 112 is slidably rubbed with the bearing by the wear plate 114; through the arrangement of the wear plate 114, the mirror body frame 110 can be protected, and the loss of the abutting part of the mirror body frame 110 and the sliding friction part of the bearing when the mirror body frame 110 moves is greatly reduced.
As shown in fig. 4, in some embodiments of the present invention, the fixing portion 120 includes a conductive plate 123, a substrate 124 and a soft magnetic sheet 125, the lower end surface of the conductive plate 123 is connected to the substrate 124, and the soft magnetic sheet 125 is connected to the substrate 124; the conductive plate 123 includes a plurality of conductive units 1231, each connecting portion 122 is disposed on a corresponding conductive unit 1231, each adjacent two elastic arms 121 are disposed on a corresponding conductive unit 1231, and the plurality of conductive units 1231 are electrically connected to the substrate 124. Wherein the substrate 124 serves as a common power supply terminal; the soft magnetic sheet 125 covers the whole fixing part 120, so that the stability of the magnetic connection between the lens frame 110 and the fixing part 120 is ensured; in other embodiments, the conductive plate 123 may be directly provided as the conductive plate 123 of soft magnetic material, so as to achieve magnetic connection with the mirror frame 110. The conductive plate 123 includes six conductive units 1231, and the four connecting portions 122 are arranged in one-to-one correspondence with four of the conductive units 1231; in the four elastic arms 121, two adjacent elastic arms 121 form a pair, and two pairs of elastic arms 121 are respectively disposed on the other two conductive units 1231. Through the arrangement of the conductive unit 1231, one-to-one power supply between the conductive unit 1231 and the connection portion 122 is realized, the current of each connection portion 122 can be controlled more simply and efficiently, and because one connection portion 122 is correspondingly connected with one memory alloy wire 130, the power-on condition of each memory alloy wire 130 can be controlled independently, and the extension and retraction of each memory alloy wire 130 can be controlled independently and accurately.
As shown in fig. 1 and 3, in some embodiments of the present invention, the mirror frame 110 is provided with a plurality of through grooves 115, and the memory alloy wire 130 is inserted into the through grooves 115. The mirror body frame 110 is provided with four through grooves 115, wherein two through grooves 115 are arranged along the X-axis movement direction of the mirror body frame 110, and the other two through grooves 115 are arranged along the Y-axis movement direction of the mirror body frame 110; four memory alloy wires 130 correspond to the four through grooves 115 one by one, and one memory alloy wire 130 is positioned in one through groove 115. Through the arrangement of the through groove 115, the memory alloy wire 130 can be arranged between the lens frame 110 and the fixing portion 120, and the normal operation of the memory alloy wire 130 is not affected, so that the periscopic anti-shake focusing actuator 100 is more compact in structure, reduced in size and saved in control. In other embodiments, the number of the through grooves 115 may be any number, such as two or three, instead of four, the through grooves 115 may be disposed in one-to-one correspondence with the memory alloy wires 130, and one through groove 115 may allow a plurality of memory alloy wires 130 to pass through.
As shown in fig. 1 and 4, in some embodiments of the present invention, the elastic arm 121 includes a connection portion and a deformation portion, and the connection portion and the deformation portion are connected to form the entire elastic arm 121; the connecting portion is vertically provided on the fixing portion 120, the deformed portion is parallel to the mirror body frame 110, and a free end of the deformed portion abuts against the mirror body frame 110. The elastic arm 121 comprises a connecting part and a deformation part, the connecting part is a fixed end connected with the elastic arm 121 and the fixed part 120, one end of the deformation part is connected with the connecting part, and the other end of the deformation part is the free end of the elastic arm 121; the connecting part is connected with the deformation part to form a complete elastic arm 121, the length of the connecting part is smaller than that of the deformation part, the connecting part of the elastic arm 121 is perpendicular to the plane where the fixing part 120 is located, the deformation part of the elastic arm 121 is parallel to the side edge of the mirror frame 110 where the elastic arm is located, and the free end of the deformation part is abutted to the mirror frame 110. One end of the memory alloy wire 130 is connected with the deformation part near the connection part, and the other end is connected with the fixing part 120, so that the free end of the elastic arm 121 has a longer arm of force to the connection part of the memory alloy wire 130, and a larger movement stroke is obtained. By electrifying the memory alloy wire 130, the memory alloy wire 130 is controlled to contract to draw the free end of the elastic arm 121 to push the lens frame 110 to translate.
According to the second aspect of the present invention, the image pickup apparatus includes the periscopic anti-shake focusing actuator 100 according to the first aspect of the present invention.
According to the utility model discloses camera equipment has following beneficial effect at least: by adopting the periscopic anti-shake focusing actuator 100, the movement of the lens frame 110 can be accurately controlled by controlling the contraction of the memory alloy wire 130, and the periscopic anti-shake focusing actuator has a larger driving stroke, has better focusing performance and anti-shake compensation effect, and cannot generate overlarge magnetism to cause interference on the camera equipment; the periscopic anti-shake focusing actuator 100 has stable connection between components, stable movement, compact structure and convenient miniaturization of the camera equipment.
Other configurations and operations of the image pickup apparatus according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.
The periscopic anti-shake focusing actuator 100 according to an embodiment of the present invention is described in detail with reference to fig. 1 to 4 as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.
The periscopic anti-shake focusing actuator 100 includes a lens frame 110, a fixing portion 120, and four memory alloy wires 130. Two sides of each of two opposite corners of the fixing part 120 are provided with connecting parts 122, and two sides of each of the other two opposite corners of the fixing part 120 are provided with elastic arms 121; one end of each memory alloy wire 130 is connected with the corresponding elastic arm 121, and the other end of each memory alloy wire 130 is connected with the connecting part 122 oppositely arranged with the corresponding elastic arm 121.
The mirror body frame 110 is slidably disposed on the fixing portion 120, two pairs of protrusions 112 are disposed at the bottom of the mirror body frame 110, each pair of protrusions 112 is disposed at the middle of two opposite sides of the bottom of the mirror body frame 110, and the four elastic arms 121 abut against the four protrusions 112. The four sides of the bottom of the mirror body frame 110 are respectively provided with a mounting groove 113, each mounting groove 113 is embedded with a magnetic block 111, and the mirror body frame 110 and the fixing part 120 form magnetic attraction connection through the magnetic blocks 111. The mirror frame 110 is further provided with four through slots 115, and one memory alloy wire 130 is correspondingly arranged in one through slot 115.
Four bearings are further arranged between the mirror frame 110 and the fixing part 120, wherein two bearings are symmetrically arranged in the middle of two sides of the mirror frame 110 along the Y-axis direction, and the other two bearings are symmetrically arranged in the middle of two sides of the mirror frame 110 along the X-axis square; and the mirror body frame 110 is provided with a wear plate 114 at a position where the wear plate is slidably connected with the bearing.
The fixing part 120 further includes a conductive plate 123, a substrate 124 and a soft magnetic sheet 125, the lower end surface of the conductive plate 123 is connected with the substrate 124, and the soft magnetic sheet 125 is connected with the substrate 124; wherein the substrate 124 serves as a common power supply terminal; the soft magnetic sheet 125 covers the whole fixing part 120, so as to ensure the stability of the magnetic connection between the lens frame 110 and the fixing part 120; the conductive plate 123 includes six conductive units 1231, and the four connecting portions 122 are arranged in one-to-one correspondence with four of the conductive units 1231; in the four elastic arms 121, two adjacent elastic arms 121 form a pair, and two pairs of elastic arms 121 are respectively disposed on the other two conductive units 1231.
According to the periscopic type anti-shake focusing actuator 100 of the embodiment of the present invention, by such an arrangement, at least some effects as follows can be achieved, the lens frame 110 is movably disposed on the fixing portion 120, the periscopic lens module is mounted in the lens frame 110, by electrifying the memory alloy wire 130, the memory alloy wire 130 is controlled to contract to pull the elastic arm 121 to push the lens frame 110, so as to control the lens frame 110 to translate along the optical axis direction to control the lens frame 110 to focus or control the lens frame 110 to translate transversely along the direction perpendicular to the optical axis to correct shake; the memory alloy wire 130 and the elastic arm 121 control the lens frame 110 to move horizontally to realize focusing and anti-shake, the structure is simple, the occupied size is small, the memory alloy wire 130 drives the elastic arm 121 to use the lever principle, the driving stroke is enlarged, and focusing and anti-shake correction can be better carried out; fixed through magnetism between mirror body frame 110 and the fixed part 120 for being connected between mirror body frame 110 and the fixed part 120 is more firm, and moves more stably between relative fixed part 120 of mirror body frame 110, prevents to take place the condition of mirror body frame 110 perk at the in-process of translation.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A periscopic anti-shake focusing actuator, comprising:
the bottom of the mirror body frame is fixedly provided with a plurality of magnetic blocks;
the lens frame is movably arranged on the fixing part, the magnetic blocks are in magnetic attraction connection with the fixing part, the fixing part is provided with an elastic arm, the free end of the elastic arm is abutted against the lens frame, and the elastic arm is used for driving the lens frame to move along the direction of a lens optical axis or in the direction vertical to the optical axis;
one end of the memory alloy wire is connected with the fixing part, the other end of the memory alloy wire is connected with the elastic arm, and the distance from the connection point of the memory alloy wire and the elastic arm to the fixed end of the elastic arm is smaller than the arm length of the elastic arm.
2. The periscopic anti-shake focusing actuator according to claim 1, wherein the fixing portion is provided with a connecting portion on both sides of each of two opposite corners thereof, and the elastic arm is provided on both sides of each of the other two opposite corners thereof; the memory alloy wires are provided with four wires, one end of each memory alloy wire is connected with the corresponding elastic arm, and the other end of each memory alloy wire is connected with the connecting part which is arranged opposite to the corresponding elastic arm.
3. Periscopic anti-shake focusing actuator according to claim 2, wherein the bottom of the mirror housing is provided with two pairs of protrusions, each pair of protrusions being arranged in the middle of opposite sides of the bottom of the mirror housing, the four resilient arms abutting against the four protrusions, respectively.
4. The periscopic anti-shake focusing actuator according to claim 1, wherein the mirror body frame is further provided with a plurality of mounting grooves, the mounting grooves are respectively disposed on four sides of the bottom of the mirror body frame, and the magnetic blocks are embedded in the mounting grooves in a one-to-one correspondence.
5. A periscopic anti-shake focusing actuator according to claim 1 or 3, wherein a plurality of bearings are further disposed between the mirror frame and the fixing portion, the plurality of bearings are symmetrically disposed on the fixing portion along the moving direction of the mirror frame, and the bottom end of the mirror frame is slidably connected to the plurality of bearings.
6. The periscopic anti-shake focusing actuator according to claim 5, wherein the mirror body frame is further provided with a plurality of wear plates, and the wear plates are respectively arranged at the positions where the mirror body frame is connected with the bearings.
7. A periscopic anti-shake focusing actuator according to claim 2, wherein the fixing portion comprises a conductive plate, a base plate, and a soft magnetic sheet, a lower end surface of the conductive plate is connected to the base plate, and the soft magnetic sheet is connected to the base plate; the conducting plate includes a plurality of electrically conductive units, and every connecting portion set up on a corresponds electrically conductive unit, every adjacent two the elastic arm sets up on a corresponds electrically conductive unit, a plurality of electrically conductive unit with the base plate electricity is connected.
8. A periscopic anti-shake focusing actuator according to claim 1, 2 or 7, wherein the mirror body frame is provided with through slots in which the memory alloy wires are inserted.
9. A periscopic anti-shake focus actuator according to claim 1 or 3, wherein the resilient arm comprises a connecting portion and a deformation portion, the connecting portion and the deformation portion being connected to form the entire resilient arm; the connecting part is vertically arranged on the fixing part, the deformation part is parallel to the mirror body frame, and the free end of the deformation part is abutted against the mirror body frame.
10. An image pickup apparatus characterized by comprising the periscopic anti-shake focus actuator according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023099635.1U CN214041899U (en) | 2020-12-18 | 2020-12-18 | Periscopic anti-shake focusing actuator and image pickup apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023099635.1U CN214041899U (en) | 2020-12-18 | 2020-12-18 | Periscopic anti-shake focusing actuator and image pickup apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214041899U true CN214041899U (en) | 2021-08-24 |
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