CN219436843U - Optical anti-shake motor - Google Patents

Abstract

The utility model discloses an optical anti-shake motor, which comprises a base, a suspension mechanism, a carrier, a driving mechanism and a conductive insert, wherein a mounting hole is formed in the base in a penetrating manner; the suspension mechanism comprises at least two suspension elastic sheets, the carrier is accommodated in the mounting hole and is suspended in the mounting hole of the base through the suspension elastic sheets, the driving mechanism comprises at least two driving units, each driving unit is symmetrically arranged on the base and opposite to the side part of the carrier, and each driving unit is used for driving the carrier to move along at least two directions which are staggered; the conductive insert is embedded in the base, one end of the conductive insert protrudes out of the base and is used for being electrically connected with an external circuit, and the conductive insert is respectively and electrically connected with the driving mechanism and the hanging spring piece. The utility model realizes electric connection through the conductive insert, can reduce the thickness of the optical anti-shake motor, is beneficial to the miniaturization of the equipment volume, and enables the conductive insert to be embedded in the base through injection molding integrated molding, thereby saving production procedures and installation procedures and saving production cost.

Description

Optical anti-shake motor

Technical Field

The utility model relates to the technical field of optical anti-shake, in particular to an optical anti-shake motor driven by an SMA wire and smaller in size.

Background

The camera module used by the electronic equipment generally drives the lens to move through a voice coil motor, an optical anti-shake motor and the like so as to solve the problem of unclear imaging caused by shake in the shooting process and ensure that the shooting and video recording effects of the electronic equipment are clear.

The application of Chinese patent No. 202110784703.8 discloses an existing optical anti-shake motor, which comprises a base and a carrier, wherein the carrier is elastically supported on the base through an upper elastic sheet and a lower elastic sheet, and then the carrier is driven to move through a driving mechanism arranged on the base. Meanwhile, the lower end of the base is also provided with a flexible circuit board electrically connected with an external circuit, the flexible circuit board is arranged between the base and the lower elastic sheet, and the driving mechanism is electrically connected with the flexible circuit board. The existing optical anti-shake motor is not small enough in overall thickness due to the arrangement of the lower elastic sheet and the flexible circuit board, is unfavorable for miniaturization of equipment volume, and is more in number of parts, production procedures and installation procedures due to the fact that the lower elastic sheet and the flexible circuit board are more in number.

Therefore, there is a need to provide an optical anti-shake motor that has a simplified manufacturing process, a reduced thickness, and a smaller volume, to solve the above-described problems.

Disclosure of Invention

The utility model aims to provide an optical anti-shake motor which has the advantages of simplified production process, reduced thickness and smaller volume.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: an optical anti-shake motor is provided, which comprises a base, a suspension mechanism, a carrier, a driving mechanism and a conductive insert; wherein, the base is provided with a mounting hole in a penetrating way; the suspension mechanism comprises at least two suspension elastic pieces, wherein the at least two suspension elastic pieces are symmetrically connected to the base, and the other end of the suspension elastic pieces is positioned in the mounting hole; the carrier is accommodated in the mounting hole and connected to one end of the suspension spring plate, which is positioned in the mounting hole; the driving mechanism comprises at least two driving units, each driving unit is symmetrically arranged on the base and opposite to the side part of the carrier, and each driving unit is used for driving the carrier to move along at least two staggered directions; the conductive insert is embedded in the base, one end of the conductive insert protrudes out of the base and is used for being electrically connected with an external circuit, and the conductive insert is respectively and electrically connected with the driving mechanism and the hanging spring plate.

Preferably, the conductive insert comprises a first conductive insert and a second conductive insert, the first conductive insert is electrically connected with the driving mechanism to supply power to the driving mechanism, and the second conductive insert is electrically connected with the suspension elastic sheet to supply power to a focusing mechanism arranged in the carrier.

Preferably, each driving unit comprises two elastic pieces and an SMA wire, the two elastic pieces are symmetrically arranged on the side wall of the base and are electrically connected with the first conductive insert, the SMA wire is connected to the end parts of the two elastic pieces, and after the SMA wire is electrified by the first conductive insert and the elastic pieces, the SMA wire contracts to drive the elastic pieces to move so as to act on the carrier. In the utility model, the displacement generated by the driving unit when the SMA wire is electrified and contracted is larger than the contraction amount of the SMA wire, the driving unit is an amplifying mechanism which pushes the carrier to move to have larger displacement than the contraction amount of the SMA wire, so that the carrier has larger moving stroke, thereby realizing larger-angle anti-shake, further improving the anti-shake performance of the optical anti-shake motor and ensuring the imaging effect of the camera module.

Preferably, each driving unit further comprises two insulators, and the insulators are arranged at the end parts of the elastic sheets or/and the carrier and are used for realizing insulation between the end parts of the elastic sheets and the action points of the carrier.

Preferably, each driving unit further includes a pushing block, the pushing blocks are connected to the elastic sheets and protrude towards the carrier, the pushing blocks and the positions on the side surfaces of the carrier corresponding to the pushing blocks are insulated from each other, and when the SMA wires are electrified and contracted, the elastic sheets can be deformed so that the pushing blocks push the carrier.

Preferably, the suspension spring plate comprises a first cantilever and a second cantilever which are arranged at an included angle, the first cantilever and the second cantilever are of elastic structures, the first cantilever is fixed on the base and is electrically connected with the second conductive insert, the second cantilever is fixed on the carrier, the first cantilever or/and the second cantilever can deform when the carrier moves, and the first cantilever or/and the second cantilever can be driven to reset by restoring deformation.

Preferably, the elastic sheet further comprises a fixing part, the fixing part is arranged at the end part of the first cantilever and forms an included angle with the end part of the first cantilever, the fixing part is fixed on the top surface of the base and is electrically connected with the second conductive insert, the first cantilever and the second cantilever are positioned in the mounting hole, and the first cantilever and the second cantilever are spaced from the inner wall of the base.

Preferably, the inner wall of the base is convexly provided with a first bump, the vertex angle of the base is convexly provided with a second bump, and the first bump and the second bump are both used for limiting the movement of the carrier.

Preferably, the top surface of base is concave to be equipped with the spacing groove, the lateral wall of carrier is protruding to be equipped with the stopper, the stopper holding is in the spacing inslot.

Compared with the prior art, the optical anti-shake motor has the advantages that the carrier is suspended in the base through the suspension mechanism, at least two driving units of the driving mechanism are symmetrically arranged on the base and are opposite to the side parts of the carrier, each driving unit is used for driving the carrier to move along at least two directions which are staggered, the conductive insert is embedded in the base, one end of the conductive insert protrudes out of the base and is used for being electrically connected with an external circuit, the conductive insert is respectively electrically connected with the driving mechanism and the suspension elastic sheet, and the driving mechanism is powered through the conductive insert embedded in the base.

Drawings

FIG. 1 is a schematic diagram of an optical anti-shake motor according to the present utility model.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic view of the structure of fig. 1 with the outer housing removed.

Fig. 4 is a schematic view of the construction of the removal carrier and suspension mechanism of fig. 3.

Fig. 5 is an exploded view of fig. 4.

Fig. 6 is a schematic structural view of the conductive insert mated with the suspension mechanism and the drive mechanism.

Fig. 7 is a schematic diagram of the structure of the carrier and the driving mechanism.

Fig. 8 is a schematic view of the structure of the carrier and suspension mechanism.

Fig. 9 is a schematic structural view of a suspension spring of the suspension mechanism.

Fig. 10 is a schematic structural view of a driving unit of the driving mechanism.

Detailed Description

Embodiments of the present utility model will now be described with reference to the drawings, wherein like reference numerals represent like elements throughout. It should be noted that, the description of the azimuth or the positional relationship indicated by the present utility model, such as up, down, left, right, front, back, etc., is based on the azimuth or the positional relationship shown in the drawings, and is only for convenience in describing the technical solution of the present application and/or simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. First, second, etc. are described solely for distinguishing between technical features and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

Referring to fig. 1 to 10, an optical anti-shake motor 100 according to the present utility model includes a base 110, a carrier 120, a suspension mechanism 130, a driving mechanism 140, and a conductive insert 150. Wherein, the base 110 has a certain height, and a first mounting hole 110a is penetratingly opened in a height direction (Z-axis direction) of the base 110; the suspension mechanism 130 includes at least two suspension elastic pieces, the at least two suspension elastic pieces are symmetrically connected to the base 110 and the other end is located in the first mounting hole 110a; the carrier 120 is accommodated in the first mounting hole 110a and is connected to one end of the suspension dome, which is positioned in the first mounting hole 110a; the driving mechanism 140 includes at least two driving units, each symmetrically mounted on the base 110 and opposite to a side surface of the carrier 120, and each driving unit is used for driving the carrier 120 to move along at least two directions that are staggered; the conductive insert 150 is embedded in the base 110, and one end of the conductive insert protrudes out of the base 110 to be electrically connected with an external circuit, and the conductive insert 150 is electrically connected with the driving mechanism 140 and the suspension spring, so as to supply power to the driving mechanism 140 and the focusing mechanism in the carrier 120.

In the present utility model, the focusing mechanism provided in the carrier 120 is a conventional structure in the art, and thus will not be described in detail. Meanwhile, a second mounting hole 120a is formed in the middle of the carrier 120 in a penetrating manner, the second mounting hole 120a is used for mounting components to be moved, such as a lens, an optical sensor and the like, the carrier 120 drives the lens, the optical sensor and the like to move to realize anti-shake, and a focusing mechanism in the carrier 120 drives the lens, the optical sensor and the like to move to realize focusing.

With continued reference to fig. 1-4, in the present utility model, both the base 110 and the carrier 120 are preferably square structures. Of course, the shapes of the base 110 and the carrier 120 are not limited to this, and may be flexibly set as needed, for example, in other embodiments, the base 110 and the carrier 120 may be set to have a circular, oval, rectangular, or other shape.

More preferably, the top surface of the base 110 is concavely provided with a limiting groove 111, the side wall of the carrier 120 is convexly provided with a limiting block 121, the limiting block 121 is accommodated in the limiting groove 111, and the cooperation of the limiting block 121 and the limiting groove 111 is simultaneously used for limiting the movement of the carrier 120. In addition, the inner wall of the base 110 is further provided with a first bump 112, a second bump 113 is provided at a top corner of the base 110, and the first bump 112 and the second bump 113 are both used for limiting movement of the carrier 120.

Referring to fig. 4 to 6, in the present utility model, the conductive insert 150 includes a first conductive insert 151 and a second conductive insert 152, and lower ends of the first conductive insert 151 and the second conductive insert 152 protrude from the bottom of the base 110 for electrically connecting to an external circuit. The first conductive insert 151 is electrically connected to the driving mechanism 140 mounted on the side wall of the base 110 to supply power thereto (see fig. 6), while the second conductive insert 152 is electrically connected to suspension springs 130a to 130d (described in detail later) mounted on the top surface of the base 110, and the suspension springs 130a to 130d are electrically connected to the carrier 120 and then further electrically connected to the inserts of the focusing mechanism disposed in the carrier 120, so that the power supply of the focusing mechanism is realized through the second conductive insert 152 and the suspension springs 130a to 130 d. The conductive insert 150 is embedded in the base 110, so that not only can the installation space be saved and the volume of the whole optical anti-shake motor 100 be reduced, thereby realizing the miniaturization of equipment, but also the production and installation procedures can be simplified by injection molding in an integrated manner during production.

In an embodiment of the present utility model, as shown in fig. 2-3 and 8-9, the suspension mechanism 130 preferably includes four suspension springs 130 a-130 d, wherein the four suspension springs 130 a-130 d are respectively fixed on two sidewalls of the base 110 in the first direction (X-axis direction), specifically, two suspension springs 130a, 130d are fixed on a top surface of one sidewall of the base 110 in the first direction (X-axis direction), and the other two suspension springs 130b, 130c are fixed on a top surface of the other sidewall of the base 110 in the first direction (X-axis direction), so that the four suspension springs 130 a-130 d are symmetrically arranged along the second direction (Y-axis direction).

More specifically, when the four suspension springs 130a to 130d are connected to the carrier 120, the four suspension springs are respectively fixed to both side walls of the carrier 120 in the second direction (Y-axis direction), as shown in fig. 3 and 8. Specifically, two suspension springs 130a, 130b are fixed to one side wall of the carrier 120 in the second direction (Y-axis direction), and the other two suspension springs 130c, 130d are fixed to the other side wall of the carrier 120 in the second direction (Y-axis direction), so that the four suspension springs 130a to 130d are symmetrically arranged along the first direction (X-axis direction). Therefore, the carrier 120 is stably suspended in the base 110, so that the stress balance of the carrier 120 after being suspended in the base 110 is ensured, and the situation that the carrier 120 deflects due to uneven stress to cause clamping and the like is effectively avoided.

It should be understood that the four suspension springs 130 a-130 d are not limited to the connection manner in the above embodiment, for example, in other embodiments, the four suspension springs 130 a-130 d may be uniformly disposed around the carrier 120, and two ends of each suspension spring are respectively fixed to the top surface of the base 110 and the side walls of the carrier 120, that is, the four suspension springs 130 a-130 d are respectively connected to the four side walls of the base 110 and the four side walls of the carrier 120, which may also achieve the above functions.

Further, the suspension mechanism 130 is not limited to include four suspension springs 130 a-130 d, but may be provided with only two suspension springs, and may also stably suspend the carrier 120 in the base 110.

Referring now to fig. 3 and 8-9, in the present utility model, the four suspension springs 130a to 130d have the same structure, and the suspension spring 130a will be described as an example. The suspension spring 130a includes a first cantilever 131 and a second cantilever 132 disposed at an included angle, and in a specific embodiment, the first cantilever 131 and the second cantilever 132 are disposed vertically. And, the first cantilever 131, the second cantilever 132 are all in elastic construction, the tip of first cantilever 131 is fixed in base 110, first cantilever 131, second cantilever 132 all are located first mounting hole 110a and are spaced apart with the inner wall of base 110, the second cantilever 132 is fixed in the side of carrier 120, can make first cantilever 131 or/and second cantilever 132 produce deformation when carrier 120 moves, first cantilever 131 or/and second cantilever 132 resume deformation and can drive carrier 120 and reset fast. The first cantilever 131 and the second cantilever 132 are arranged in a bending structure, so that the elasticity of the hanging spring piece can be increased, on one hand, the carrier 120 can be better matched with the movement of the carrier 120, the resistance of the carrier 120 in moving is reduced, and on the other hand, the carrier has a better resetting function. Of course, the first cantilever 131 and the second cantilever 132 are not limited to the above shape and structure, and for example, in other embodiments, the first cantilever 131 and the second cantilever 132 may have an arc shape or other shapes.

More preferably, the lengths of the first cantilever 131 and the second cantilever 132 are each approximately equal to half of the side length of the carrier 120, such that one end of the suspension tab 130a is fixed to approximately the middle of the side wall 110 of the base 110, as shown in fig. 3, and the other end thereof may be fixed to approximately the middle of the side 240 of the carrier 120, as shown in fig. 8. Thus, after the four suspension springs 130a to 130d are mounted, the four suspension springs 130a to 130d are respectively connected to the substantially middle portions of the two sides of the carrier 120 in the second direction (Y-axis direction), so that the stress on the sides of the carrier 120 after suspension is uniform. Of course, each suspension dome may also form a multi-point connection with each side of the carrier 120.

With continued reference to fig. 3 and 8-9, the stiffness of the first cantilever 131 and the second cantilever 132 along the Z-axis direction is greater than the stiffness perpendicular to the Z-axis direction, so that the suspension springs 130 a-130 d have better anti-impact capability, i.e., when the optical anti-shake motor 100 receives an impact force along the Z-axis direction, the suspension springs 130 a-130 d can limit the displacement along the Z-axis direction to a smaller range. Through the action of the four suspension elastic pieces 130 a-130 d, the carrier 120 can be prevented from being damaged or blocked due to collision between the carrier 120 and other parts when the optical anti-shake motor 100 receives a larger impact force, the positions of all parts in the optical anti-shake motor 100 are effectively ensured to be within a safe range, and the reliability of the optical anti-shake motor 100 is improved.

With continued reference to fig. 8-9, in this embodiment, the suspension spring 130a further includes a fixing portion 133, where the fixing portion 133 is fixed to an end of the first cantilever 131 away from the second cantilever 132, and the fixing portion 133 is disposed above the first cantilever 131 and forms an included angle with the first cantilever 131, and in this embodiment, the fixing portion and the fixing portion are disposed perpendicular to each other, so that the first cantilever 131 and the second cantilever 132 are located below a plane where the fixing portion 133 is located. The fixing portion 133 and the second cantilever 132 protrude in opposite directions with respect to the first cantilever 131. As shown in fig. 3 and 8-9, when mounting, the fixing portion 133 is fixed to the top surface of the sidewall 110 of the base 110, such that the first cantilever 131 and the second cantilever 132 are positioned in the first mounting hole 110a, the first cantilever 131 and the second cantilever 132 respectively extend along the adjacent sidewall 110 of the base 110, and the first cantilever 131 and the second cantilever 132 are spaced apart from the inner surface of the base 110 to provide a movable space of the carrier 120, and the second cantilever 132 is fixed to the side surface of the carrier 120.

With continued reference to fig. 2-4 and fig. 8-9, more preferably, the fixing portion 133 is provided with a first fixing hole 134, and the top surface of the first side wall 110 of the base 110 is convexly provided with a first fixing post 114 (see fig. 2-4) matched with the first fixing hole 134, and the first fixing hole 134 is penetrated through the first fixing post 114 to achieve fixing, so that connection between the two is simpler and more convenient. Of course, the first fixing hole 134 and the first fixing post 114 may be disposed at different positions. It is understood that the fixing portion 133 and the base 110 may be fixedly connected by other means, such as welding, gluing, screwing, etc.

Referring to fig. 6, in the present utility model, the fixing portion 133 is further in contact with the second conductive insert 152 embedded in the base 110, thereby achieving electrical connection therebetween, and the second cantilever 132 is in contact with the insert of the focusing mechanism provided in the carrier 120 after being fixed to the carrier 120, as shown in fig. 8. The structure arrangement can reduce the number of the electric connection parts and simplify the electric connection mode, and also makes the production more convenient.

More preferably, the suspension spring plates 130a to 130d are all integrally formed, and may be punched or etched by a plate, so that the production method is simple. However, the forming method is not limited thereto, and the suspension spring may be formed in other ways.

With continued reference to fig. 1-3 and fig. 6-7, in one embodiment of the present utility model, the driving mechanism 140 includes four driving units 140 a-140 d, the four driving units 140 a-140 d are respectively corresponding to four sidewalls mounted on the base 110, and the four driving units 140 a-140 d are disposed in a pair-to-pair manner, and the four driving units 140 a-140 d respectively act on four sides of the carrier 120 to drive the carrier 120 to move in two directions perpendicular to each other in the base 110.

It is understood that the number of driving units is not limited to four, nor is it limited to the above arrangement, and that the carrier 120 may be driven to move by other arrangements as well.

In the present utility model, the four driving units 140a to 140d have the same structure as shown in fig. 2 to 3, 6 to 7, and 10, and the driving unit 140a will be described as an example. The driving unit 140a includes two elastic pieces 141 and an SMA wire 142, the two elastic pieces 141 are symmetrically installed on the side wall of the base 110 and electrically connected to the first conductive insert 151, the SMA wire 142 is connected to the end of the two elastic pieces 141 far away from each other, the SMA wire 142 is energized by the first conductive insert 151 and the elastic pieces 141, and the SMA wire 142 is energized to shrink to drive the two elastic pieces 141 to move so as to act on the carrier 120. In the utility model, the displacement generated by the driving unit 140a when the SMA wire 142 is electrified and contracted is larger than the contraction amount of the SMA wire 142, the driving unit 140a is an amplifying mechanism which pushes the carrier 120 to move to have larger displacement than the contraction amount of the SMA wire 142, so that the carrier 120 has larger moving stroke, thereby realizing larger-angle anti-shake, further improving the anti-shake performance of the optical anti-shake motor 100 and ensuring the imaging effect of the camera module. In addition, the load of the carrier 120 can be balanced by simultaneously acting the ends of the two elastic pieces 141 which are far away from each other on the carrier 120. After the SMA wire 142 is de-energized and relaxed, the two spring plates 141 can be automatically reset to disengage the ends thereof from the carrier 120.

More specifically, each elastic piece 141 has a bent abutting end 1411 and a fixed end 1412, and the fixed end 1412 is fixed to a side wall of the base 110, and the abutting end 1411 is in an elastic structure and extends into the first mounting hole 110a of the base 110. The abutting ends 1411 of the two elastic pieces 141 protrude in opposite directions, so that the two abutting ends 1411 are close to both ends of the carrier 120 in the side length direction (X-axis, Y-axis direction) of the carrier 120.

Referring to fig. 3, 6 and 10, the driving unit 140a further includes two reinforcing pieces 143, each reinforcing piece 143 is fixed to a fixed end 1412 of a spring 141 and a side wall of the base 110, and the reinforcing pieces 143 contact the first conductive insert 151 (see fig. 6), and power is supplied to the SMA wire 142 through the reinforcing pieces 143 and the spring 141.

More preferably, the abutting end 1411 of each of the elastic pieces 141 has a rigidity in the Z-axis direction that is greater than a rigidity perpendicular to the Z-axis direction. The two ends of the SMA wire 142 are respectively fixed to the abutting ends 1411 of the two elastic sheets 141, when the SMA wire 142 is electrified and contracted, the abutting ends 1411 of the two elastic sheets 141 can be pulled to deform and move in opposite directions, the two abutting ends 1411 simultaneously act on the carrier 120 to push the carrier 120 to move, so that the stress of the carrier 120 can be balanced, the carrier 120 can move more stably, the displacement of the two abutting ends 1411 for pushing the carrier 120 to move is larger than the contraction amount of the SMA wire 142, thereby the carrier 120 has a larger moving stroke, and the anti-shake performance of the optical anti-shake motor 100 is improved; after the SMA wire 142 is powered off and relaxed, the two elastic sheets 141 recover to deform and automatically reset, so as to separate from the carrier 120, and in addition, the conditions that the SMA wire 142 is pulled too much and broken when the optical anti-shake motor 100 receives a large impact force can be prevented.

It is understood that the two elastic pieces 141 may be designed as an integral structure, that is, the fixed ends 1412 of the two elastic pieces 141 or the reinforcing pieces 143 may be fixedly connected or integrally formed, which does not affect the implementation of the function of the driving unit 140 a.

With continued reference to fig. 10, in the present utility model, the driving unit 140a further includes an insulating block 144, and the insulating block 144 is formed by an insulating material. A clamping groove is further formed on the insulating block 144, meanwhile, a pushing block 1441 is integrally formed on one side surface of the insulating block 144, and the pushing block 1441 is in a circular arc structure. During connection, the insulating block 144 is clamped at the abutting end 1411 of the elastic sheet 141, the pushing block 1441 is opposite to the carrier 120, and the carrier 120 is pushed by the pushing block 1441, so that the functions of insulation and wear resistance can be realized. Of course, the insulating block 144 is not limited to the above-described structure and connection method, and for example, the insulating block 144 may be directly adhered to the contact end 1411.

It should be understood that the insulating block 144 and the pushing block 1441 are not limited to the above-mentioned arrangement, for example, in other embodiments, the pushing block 1441 may be integrally formed at the abutting end 1411 of the elastic piece 141, the pushing block 1441 protrudes toward the carrier 120, and an insulating layer is disposed on the pushing block 1441 or on a side surface of the carrier 120 corresponding to the position of the pushing block 1441, so as to achieve an insulating effect. In addition, the pushing block 1441 is not limited to the circular arc shape, and may be provided in any other shape.

Referring to fig. 1-2 again, the optical anti-shake motor 100 of the present utility model further includes an outer housing 160, where the outer housing 160 includes an upper housing 161 and a bottom plate 162 that are cooperatively connected, the upper housing 161 is covered outside the base 110, the bottom plate 162 is connected to the bottom of the upper housing 161, and through holes corresponding to the first mounting holes 110a are respectively formed in the upper housing 161 and the bottom plate 162, so that other components can be mounted on the carrier 120. The connection between the upper case 161 and the bottom plate 162 is conventional in the art.

The operation of the optical anti-shake motor 100 according to the present utility model will be described below with reference to fig. 1 to 10, taking the forward movement of the carrier 120 to the X-axis in fig. 3 as an example.

Referring to fig. 3 and 10, after the controller receives the displacement amount of the carrier 120 required to move forward along the X axis, the SMA wire 142 of the driving unit 140c is energized, that is, the SMA wire 142 is energized by the conductive insert 150 and the spring plate 141 to shrink, so that the abutting ends 1411 of the two spring plates 141 are pulled to deform and move in opposite directions, the pushing blocks 1441 on the two abutting ends 1411 push the carrier 120 to move, and during the forward movement of the carrier 120 along the X axis, the four suspension spring plates 130a to 130d deform.

When the carrier 120 moves in place along the positive direction of the X axis, the SMA wire 142 of the driving unit 140c is powered off to relax, at this time, the abutting ends 1411 of the two elastic pieces 141 automatically reset under the action of their own elastic forces, that is, move in opposite directions respectively to separate the pushing block 1441 from the carrier 120, and after the carrier 120 loses the pushing force, as shown in fig. 3 and 10, the four elastic pieces 141310 to 340 recover deformation to drive the carrier 120 to move in the negative direction of the X axis for resetting for the next adjustment.

The principle of movement of the carrier 120 in other directions is the same as that described above, and thus a description will not be repeated.

In summary, since the carrier 120 of the optical anti-shake motor 100 of the present utility model is suspended in the base 110 by the suspension mechanism 130, and at least two driving units 140 a-140 d of the driving mechanism 140 are symmetrically mounted on the base 110 and opposite to the side of the carrier 120, each driving unit 140 a-140 d is used for driving the carrier 120 to move along at least two directions that are staggered, the conductive insert 150 is embedded in the base 110 and one end protrudes out of the base 110 to be electrically connected with an external circuit, the conductive insert 150 is electrically connected with the driving mechanism 140 and the suspension spring 141, respectively, and the driving mechanism 140 is powered by the conductive insert 150 embedded in the base 110, firstly, compared with the prior art, the thickness of the optical anti-shake motor 100 can be further reduced, the miniaturization of the equipment volume is facilitated, and secondly, the conductive insert 150 is embedded in the base 110 by injection molding, the production process and the installation process can be saved.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.

Claims (9)

1. An optical anti-shake motor, comprising:

the base is provided with a mounting hole in a penetrating manner;

the suspension mechanism comprises at least two suspension elastic pieces, wherein the at least two suspension elastic pieces are symmetrically connected to the base, and the other end of the suspension elastic pieces is positioned in the mounting hole;

the carrier is accommodated in the mounting hole and connected to one end of the hanging spring plate, which is positioned in the mounting hole;

the driving mechanism comprises at least two driving units, each driving unit is symmetrically arranged on the base and opposite to the side part of the carrier, and each driving unit is used for driving the carrier to move along at least two staggered directions;

the conductive insert is embedded in the base, one end of the conductive insert protrudes out of the base and is used for being electrically connected with an external circuit, and the conductive insert is respectively and electrically connected with the driving mechanism and the hanging spring piece.

2. The optical anti-shake motor of claim 1 wherein the conductive insert comprises a first conductive insert electrically connected to the drive mechanism for powering the same and a second conductive insert electrically connected to the suspension dome for powering a focusing mechanism disposed within the carrier.

3. The optical anti-shake motor of claim 2 wherein each of the driving units comprises two elastic pieces and an SMA wire, the two elastic pieces are symmetrically arranged on the side wall of the base and are electrically connected with the first conductive insert, the SMA wire is connected to the ends of the two elastic pieces, and after the SMA wire is electrified by the first conductive insert and the elastic pieces, the SMA wire contracts to drive the elastic pieces to move so as to act on the carrier.

4. An optical anti-shake motor according to claim 3 wherein each drive unit further comprises two insulators provided at the ends of the spring plates or/and the carrier for achieving insulation between the ends of the spring plates and the points of action of the carrier.

5. The optical anti-shake motor of claim 3 or claim 4 wherein each of the drive units further comprises a pushing block connected to the elastic sheet and protruding toward the carrier, wherein the pushing blocks are insulated from the carrier at positions on the sides of the carrier corresponding to the pushing blocks, and the SMA wires are electrically contracted to deform the elastic sheet so that the pushing blocks push the carrier.

6. The optical anti-shake motor of claim 2, wherein the suspension spring comprises a first cantilever and a second cantilever which are arranged at an included angle, the first cantilever and the second cantilever are both in elastic structures, the first cantilever is fixed on the base and is electrically connected with the second conductive insert, the second cantilever is fixed on the carrier, the first cantilever or/and the second cantilever can deform when the carrier moves, and the first cantilever or/and the second cantilever can be restored to deform to drive the carrier to reset.

7. The optical anti-shake motor of claim 6 wherein the spring further comprises a fixing portion disposed at an end of the first cantilever and disposed at an angle to the end of the first cantilever, the fixing portion is fixed to the top surface of the base and electrically connected to the second conductive insert, the first cantilever and the second cantilever are disposed in the mounting hole, and the first cantilever and the second cantilever are spaced from an inner wall of the base.

8. The optical anti-shake motor of claim 1 wherein the inner wall of the base is provided with a first bump in a protruding manner, the top corner of the base is provided with a second bump in a protruding manner, and the first bump and the second bump are both used for limiting movement of the carrier.

9. The optical anti-shake motor of claim 1 wherein the top surface of the base is concavely provided with a limit groove, the side wall of the carrier is convexly provided with a limit block, and the limit block is accommodated in the limit groove.