CN213715584U - Prism driving device - Google Patents

Abstract

The utility model discloses a prism drive arrangement, including carrier, frame, base, first group reed, second group reed and circuit board. The carrier is rotatably connected with the frame through the first group of reeds, the frame is rotatably connected with the base through the second group of reeds, and the circuit board is installed on the base and is provided with a bottom coil and a side coil. The bottom of the frame is provided with a bottom magnet corresponding to the bottom coil, the side of the carrier is provided with a side magnet corresponding to the side coil, and the bottom coil is matched with the bottom magnet and the side coil is matched with the side magnet so as to drive the carrier to rotate around two axes which are vertical to each other. A first set of springs is arranged on both sides of the carrier and a second set of springs is arranged on both sides of the frame. The utility model discloses a prism drive arrangement includes the reed of first group reed and second group reed to realize the carrier with the reed of difference respectively around the motion of two axes, thereby can realize bigger turned angle and provide bigger drive power.

Description

Prism driving device

Technical Field

The utility model relates to an optical image equipment technical field, concretely relates to prism drive arrangement and prism subassembly.

Background

With the development of technology, many electronic devices (such as smart phones or digital cameras) have a function of taking pictures or recording videos. The use of these electronic devices is becoming more common and the design direction of these electronic devices is being developed to be more convenient and thinner to provide more choices for users. Spring prism motor is more and more receiving consumer and complete machine manufacturer's favor as comparatively advanced device in the market, however, spring prism motor on the existing market is the unipolar rotation, relates to the part too much, and the mounting process is complicated, and the equipment is difficult the yields low, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prism drive arrangement to solve the problem that exists among the above-mentioned prior art.

In order to solve the above problems, according to one aspect of the present invention, there is provided 1a prism driving apparatus, characterized in that the prism driving apparatus includes a carrier, a frame, a base, a first group of springs, a second group of springs, and a circuit board,

the carrier is used for bearing a prism and is rotatably connected with the frame through the first group of reeds, the frame is rotatably connected with the base through the second group of reeds, the circuit board is installed on the base and is provided with a bottom coil and a side coil, the bottom of the frame is provided with a bottom magnet corresponding to the bottom coil, the side of the carrier is provided with a side magnet corresponding to the side coil, the bottom coil is matched with the bottom magnet, and the side coil is matched with the side magnet to drive the carrier to rotate around two mutually vertical axes, wherein the bottom coil is matched with the bottom magnet, and the side coil is matched with the side magnet to drive the carrier to rotate around the two mutually

The first set of springs is disposed on both sides of the carrier and the second set of springs is disposed on both sides of the frame.

In one embodiment, the carrier is rotatable relative to the frame about a vertical axis and the frame is rotatable relative to the base about a horizontal axis.

In one embodiment, the bottom of the frame extends upwardly beyond a first reed fitting disposed on either side of the carrier and a second reed fitting disposed on either side of the first reed fitting.

In one embodiment, both sides of the carrier are provided with carrier reed mounting parts, both sides of the base are provided with base reed mounting parts, the first group of reeds are connected with the carrier reed mounting parts and the first reed mounting parts, and the second group of reeds are connected with the base reed mounting parts and the second reed mounting parts.

In one embodiment, when the carrier is mounted to the frame, the carrier spring mount is coplanar with a rear surface of the first spring mount, the upper ends of the first set of springs are attached to the rear surface of the carrier spring mount, and the lower ends of the first set of springs are attached to the rear surface of the first spring mount.

In one embodiment, the second set of springs includes a first portion for engaging the second spring mounting portion and a second portion for engaging the base spring mounting portion, the first portion and the second portion being connected by a connection.

In one embodiment, the frame comprises a frame bottom and a frame back which are integrally formed, the frame back integrally extends upwards from the back side of the frame bottom, the frame bottom is provided with the first reed mounting part and the second reed mounting part, the first reed mounting part integrally extends upwards from the upper surface of the frame bottom and extends along the height direction of the frame, the back end of the second reed mounting part is connected to the frame back, and the bottom end of the second reed mounting part is connected to the frame bottom.

In one embodiment, the upper surface of the second spring mounting part is provided with a first groove which is concave towards the bottom, and a front convex part and a rear convex part are respectively formed in front of and behind the first groove so as to be connected with the front end and the rear end of the second group of springs.

In one embodiment, the second spring mounting portion has a height that decreases from the rear end to the front end and forms an inclined surface at the top.

In one embodiment, the second spring mounting portion has a height that is uniform from the back end to the front end and forms a plane at the top that is parallel to the bottom.

In one embodiment, the base comprises a base bottom, a base rear portion and base side portions, the rear ends of the base side portions are connected with the base rear portion, the lower ends of the base side portions are connected with the base bottom, the base side portions form the base reed mounting portion, and the height of the base reed mounting portion is matched with the height of the second reed mounting portion.

In one embodiment, the base spring mounting portion tapers in height from a rear end to a front end and forms an inclined surface at the top.

In one embodiment, the height of the base spring mounting portion is uniform from the rear end to the front end and forms a plane parallel to the base.

In one embodiment, the first set of leaves is arranged in a vertical direction and the second set of leaves is arranged in a horizontal direction or inclined.

In one embodiment, an upper surface of the base reed mounting portion is coplanar with an upper surface of the second reed mounting portion.

The utility model discloses a prism drive arrangement includes the reed of first group and the reed of second group to realize the carrier with the reed of difference respectively around the motion of two axes, thereby can realize bigger turned angle and provide bigger drive power, can bear bigger prism, in addition, because ingenious increase frame is as middle motion carrier, makes the transmission of motion more accurate and easy control. Furthermore, the utility model discloses an upper end and the lower extreme of first group reed are located same vertical plane, and the bottom of first group reed perpendicular to base is arranged promptly, and the both sides of the recess of carrier form complete baffle simultaneously, can realize better protection effect and stronger stability to the prism.

In addition, because the first group of reeds and the second group of reeds are installed at an angle of 90 degrees, the first group of reeds and the second group of reeds can be laid flat by putting the whole prism driving device on the side, the manufacturing and processing are convenient, the shell can cover most parts of the carrier, the closed installation with the base is easy, and the whole reliability is stronger.

Drawings

Fig. 1 is a perspective view of a prism driving device according to an embodiment of the present invention.

Fig. 2 is a perspective view of a carrier of the prism drive apparatus of fig. 1.

Fig. 3 is a perspective view of a frame of the prism drive apparatus of fig. 1.

Fig. 4 is a perspective view of a base of the prism drive apparatus of fig. 1.

Fig. 5 is a perspective view of a first set of springs of the prism drive apparatus of fig. 1.

Fig. 6 is a perspective view of a circuit board of the prism driving apparatus of fig. 1.

Figure 7 is a perspective view of an assembly of the base, spring and carrier assembled together.

Fig. 8 is a front view of the assembly of fig. 7.

Fig. 9 is a bottom view of the assembly of fig. 7.

Fig. 10 is a rear view of the assembly of fig. 7.

Fig. 11 is a cross-sectional view of a prism drive apparatus according to an embodiment of the present invention.

Fig. 12 is another cross-sectional view of a prism driver according to an embodiment of the present invention.

Figure 13 is a perspective view of an assembly of a base, a spring, and a carrier assembled together according to one embodiment of the invention.

Figure 14 is a perspective view of an assembly of a base, a spring, and a carrier assembled together according to one embodiment of the invention.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the following description, for the sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.

The utility model discloses a prism drive arrangement generally, which comprises a carrier, a frame, a pedestal, first group reed, reed and circuit board are organized to the second, the carrier is used for bearing the weight of the prism and through first group reed and frame rotatable coupling, the circuit board is installed on the base and is equipped with bottom coil and lateral part coil, the bottom of frame is equipped with the bottom magnet that corresponds with the bottom coil, the lateral part of carrier is equipped with the lateral part magnet that corresponds with the lateral part coil, thereby bottom coil and bottom magnet cooperation and lateral part coil and lateral part magnet cooperation drive carrier encircle two axis rotations of mutually perpendicular. The utility model discloses a prism drive arrangement rotates around the frame and rotates around the base through the frame through the carrier to realize the biax rotation of carrier, because these two rotary motion are mutually independent, consequently have bigger rotation angle and can provide bigger drive power, thereby can drive bigger prism, in addition, because the carrier can realize biax rotation, make TELE motor in the periscope module only need drive AF (auto focus) direction, thereby can reduce the cost of periscope module. Furthermore, in one embodiment, the first set of springs can be arranged perpendicular to the bottom of the base to stabilize the carrier. Because the first group of reeds and the second group of reeds form a 90-degree angle arrangement, the first group of reeds and the second group of reeds can be laid flat by laterally placing the whole driving device, the manufacturing and the processing are convenient, and a shell capable of covering most of the whole body can be adopted, so that the shell and the base are easy to close and install, and the whole reliability is stronger. The following description will explain embodiments of the present invention with reference to the drawings.

Fig. 1 is an exploded perspective view of the prism drive device 100. As shown in fig. 1, the prism drive apparatus 100 includes a housing 50, a first set of springs 20, a carrier 30, side magnets 81, a frame 10, a bottom magnet 82, a base 40, a second set of springs 70, and a circuit board 60. The carrier 30 is used for mounting a prism (not shown) and is mounted on the frame 10, the frame 10 is mounted on the base 40, the first group of reeds 20 are respectively connected to the left and right sides of the carrier 30, wherein one part of the first group of reeds 20 is connected to the carrier 30, and the other part is connected to the frame 10, thereby rotatably connecting the carrier 30 and the frame 10. A second set of springs 70 are attached to the bottom of the frame 10 at one portion and to the bottom of the base 40 at another portion, thereby rotatably connecting the frame 10 to the base 40. Since the carrier is mounted on the frame 10, when the frame 10 rotates with respect to the base 40, the carrier 30 also performs a rotational movement with the frame 10 with respect to the base 40, and when the carrier 30 performs a rotational movement with respect to the frame 10, since the frame 10 is mounted on the base 40, the base 40 also moves with the frame 10, and thus, the carrier 30 also performs a rotational movement with respect to the base 40. Therefore, the present invention can realize the rotation motion of the carrier 30 around two axes perpendicular to each other with respect to the base 10.

In one embodiment, with reference to the orientation shown in FIG. 1, the first set of springs 20 are disposed vertically on the sides of the carrier 30 and frame 10, and the second set of springs 70 are disposed horizontally on the bottom of the frame 10 and base 40. The carrier 30 is rotatable relative to the frame 10 about a first axis parallel to the plane of the paper, and the frame 10 is rotatable relative to the base 40 about a second axis perpendicular to the first axis.

Fig. 2 is a perspective view of the carrier 30, and as shown in fig. 2, the carrier 30 includes a carrier body 31, the upper surface and the front surface of the carrier body 31 are provided with grooves 32, and the bottom of the grooves 32 is formed with a slope 321, so that the cross-section of the grooves 32 is formed in a triangular shape as a whole to be engaged with the prisms, so that the prisms are formed in a rectangular shape as a whole when being mounted in the grooves 32. The light enters from the upper surface of the prism and leaves the prism from the front surface after passing through the prism. A recess 322 is formed in the inclined surface 321 at the bottom of the groove 32, and an adhesive may be placed in the recess 322 to bond the prism, for example.

First reed mounting portions 33 are provided on both sides of the main body 31. The first reed mounting part 33 is formed to protrude from both sides of the main body 31 integrally to both sides, and is provided with an upper protrusion 331 at an upper portion and a lower protrusion 332 at a lower portion, and front surfaces of the upper protrusion 331 and the lower protrusion 332 are fixedly connected to an upper portion and a lower portion of the carrier connecting part of the first group reed 20, respectively. The rear side of the main body 31 is provided with two side magnet mounting grooves (not shown) to mount the side magnets 81. In one embodiment, referring to fig. 10, a sensor magnet 83 may also be provided between the two side magnet mounting slots to cooperate with the side sensor on the circuit board to detect the position of the carrier.

With continued reference to fig. 2, the groove 32 is formed at both sides thereof with a first barrier 361 and a second barrier 362, the first barrier 361 and the second barrier 362 enclosing the groove 32 from the left and right sides, and when the prism is disposed in the groove 32, both sides of the prism are completely blocked by the first barrier 361 and the second barrier 362, thereby protecting the prism. A first escape groove 351 and a second escape groove 352 are also provided at the top of the first barrier 361 and the second barrier 362, respectively, to facilitate taking out or putting in the prism into the groove 32. A lower projection 37 projecting downward is formed forward of the bottom of the carrier body 31 to fit into a corresponding groove on the base 40.

Fig. 3 is a perspective view of the frame 10. As shown in fig. 3, the frame 10 integrally includes a frame bottom 11, a frame rear 12, and frame sides 13, which are integrally formed. A frame rear portion 12 is integrally formed to protrude upward from the rear side of the frame bottom portion 11, the rear end of the frame side portion 13 is connected to the frame rear portion 12, and the bottom end of the frame side portion 13 is connected to the frame bottom portion 11. Wherein the front end surface of the frame side part 13 is located at the middle position of the frame bottom part 11, the middle part of the front end surface of the frame side part 13 is provided with a groove 132 depressed toward the rear part 12, an upper protrusion 131 and a lower protrusion 133 are respectively formed above and below the groove 132, and the upper protrusion 131 and the lower protrusion 133 are respectively connected with the first set of springs 20. The open space enclosed by the frame bottom 11, the frame back 12 and the frame sides 13 is used for cooperation with the carrier 30. The frame bottom 11 is provided with a second spring mounting portion 111 integrally projecting downward, the second spring mounting portion 111 engaging with a corresponding structure on the base 40 and projecting downward from the bottom of the base 40 to mount the second set of springs 70. The lower surface of the frame bottom 11 is also provided with a bottom magnet installation groove 112 (refer to fig. 7), and the top of the bottom magnet installation groove 112 is protruded upward to leave an installation space for the bottom magnet. The bottom magnet 82 is mounted in the bottom magnet mounting slot 112.

Fig. 4 is a perspective view of the base 40. As shown in fig. 4, the base 40 includes a base bottom 41 and a base rear 42, a bottom coil avoiding groove 411 is provided in the middle of the base bottom 41, and the bottom coil avoiding groove 411 is used to cooperate with a bottom coil on the circuit board 60. Lower reed mounting part avoiding grooves 412 are further formed on both sides of the bottom coil avoiding groove 411, the lower reed mounting part 111 at the bottom of the frame 10 extends into the lower reed mounting part avoiding groove 412, and a side circuit avoiding groove 43 is formed at the base rear portion 42 to be matched with a side coil on the circuit board. In one embodiment, as shown in fig. 4, the rear portion 42 of the base forms a rectangular frame structure, the middle portion of the entire rectangular frame structure forms a side circuit avoiding groove 43, and the periphery of the side circuit avoiding groove 43 forms a rectangular frame.

To sum up, the utility model discloses a base 40 all is equipped with in bottom and lateral part and dodges the groove for place the lateral part coil and the bottom coil of circuit part. In addition, the bottom carrier avoiding groove has a certain effect of limiting the motion range of the carrier, and the carrier introducing groove is convenient for the carrier to be installed and also has a certain effect of limiting the motion range.

Figure 5 is a perspective view of one of the leaves of the first set of leaves 20. As shown in fig. 5, the first set of springs 20 is integrally formed of a first portion 21 and a second portion 22 connected to each other, the first portion 21 being secured to the carrier 30 and the second portion 22 being secured to the frame 10. The first portion 21 and the second portion 22 are connected by a first elastic member 23, specifically, a first upper end fixing portion 211 is disposed at an upper end of the first portion 21, a first lower end fixing portion 212 is disposed at a lower end of the first portion 21, and the first upper end fixing portion 211 and the first lower end fixing portion 212 are connected by a bent first elastic strip 213. The upper end of the second portion 22 is provided with a second upper end fixing portion 221, the lower end of the second portion 22 is provided with a second lower end fixing portion 222, and the second upper end fixing portion 221 and the second lower end fixing portion 222 are connected by a bent second elastic strip 223. The first elastic strip 213 and the second elastic strip 223 are collectively referred to as a first elastic member 23. The second set of leaves 70 are similar in construction and shape to the first set of leaves 20 and will not be described in detail.

Fig. 6 is a perspective view of the circuit board 60. As shown in fig. 6, the circuit board 60 includes a vertical portion 61 and a horizontal portion 62. The two ends of the inner surface of the vertical portion 61 are respectively provided with a first side coil 611 and a second side coil 612, the first side coil 611 and the second side coil 612 are respectively matched with the side magnets 81 installed at the side portion of the carrier 30, and form an electromagnetic induction with the side magnets when the power is supplied to drive the carrier 30 to rotate around the first axis. The upper surface of the horizontal portion 62 is provided with a bottom coil 621, the bottom coil 621 cooperating with a bottom magnet 82 arranged at the bottom of the carrier 30 and forming an electromagnetic induction with the bottom magnet upon energization to drive the carrier 30 to rotate about the second axis.

In one embodiment, as shown in fig. 6, a bottom sensor 622 may be disposed inside the bottom coil 621 so that the position of the bottom magnet of the carrier, and thus the position of the carrier 30, is detected by the bottom sensor 622.

In one embodiment, as shown in fig. 6, a side sensor 613 may be further provided between the first side coil 611 and the second side coil 612, so that the position of the sensor magnet 83 of the carrier side is detected by the side sensor 613 to detect the position of the carrier 30.

Figure 7 is a perspective view of an assembly of a base 40, a first set of springs 20, a second set of springs 70, a frame 10, and a carrier 30 assembled together, figure 8 is a front view of figure 7, figure 9 is a bottom view of figure 7, and figure 10 is a rear view of figure 7. as shown in figures 7-10, the carrier 30 is mounted on the frame 10, the frame 10 is mounted on the base 40, the first set of springs 20 connect the carrier 30 to the frame 10, and the second set of springs 70 connect the frame 10 to the base 40. Specifically, the upper end fixing portion 211 of the first part 21 of the first group spring 20 is fixed to the upper end fixing portion 331 of the carrier 30, and the lower end fixing portion 212 of the first part 21 of the first group spring 20 is fixed to the lower end fixing portion 332 of the carrier 30. The upper end fixing part 221 of the second part 22 of the first group of the spring pieces 20 is fixed on the spring piece upper end fixing projection 131 of the frame 10, and the lower end fixing part 222 of the second part 22 of the first group of the spring pieces 20 is fixed on the spring piece lower end fixing projection 133 of the frame 10, so that the carrier 30 is connected with the frame 10 through the first group of the spring pieces 20. Since the first part 21 and the second part 22 of the first group of springs 20 are connected by the elastic member 23, when the carrier 30 is driven to rotate about the vertical axis (first axis) after the side coil on the circuit board is energized, the first part 21 of the first group of springs 20 rotates about the second part 22, thereby enabling the carrier 30 to perform a rotational movement about the vertical axis with respect to the frame 10.

Referring to fig. 9, the second part 72 of the second group spring 70 is fixed to the bottom of the base 40, the first part 71 of the second group spring 70 is fixed to the surface of the second spring mounting portion 111 of the frame 10, and the first part 71 and the second part 72 of the second group spring 70 are connected by the second elastic member 73, so that the first part 71 can rotate relative to the second part 72, and the frame 10 can rotate relative to the base 40 about a second axis (horizontal axis) perpendicular to the first axis. Since the frame 10 and the carrier 30 are connected by the first set of springs 10, when the frame 10 rotates about a first axis or a so-called horizontal axis relative to the base 40, the carrier 30 can be brought to rotate about the first axis or the so-called horizontal axis also about the base 40. Therefore, the carrier 30 can rotate around the base 40 around the mutually perpendicular horizontal and vertical axes by the first set of springs 30 at the side and the second set of springs 70 at the bottom, thereby better achieving the optical anti-shake function. In addition, because the rotation around two axes is realized by two groups of reeds, the motions are independent, a larger rotation range can be provided, and a larger driving force can be conveniently provided to drive a larger prism. In addition, higher motion accuracy and control accuracy can be provided.

In the present invention, as shown in fig. 7 and 8, the upper end and the lower end of the first set of reeds 20 are located on the same vertical plane, that is, the first set of reeds 20 are arranged perpendicular to the bottom of the frame 10, and the two sides of the groove 31 of the carrier 30 form a complete baffle, thereby realizing better protection effect and stronger stability for the prism 10. In addition, since the first set of springs is mounted at a 90 degree angle to the second set of springs, the springs 20 can be laid flat by placing the entire prism drive on its side, facilitating manufacturing and processing, and allowing the housing to cover a large portion of the carrier, and providing easy and overall reliability of the closed mounting with the base.

Fig. 11 is a sectional view of the prism driving apparatus 100 according to an embodiment of the present invention, and fig. 12 is another sectional view of the prism driving apparatus 100 according to an embodiment of the present invention. As shown in fig. 11 to 12 in conjunction with fig. 9 to 10, the magnet assembly 80 includes two side magnets 81 and a bottom magnet 82, the two side magnets 81 being respectively mounted in two side magnet mounting grooves (not shown) of the side of the carrier 30, and the bottom magnet 82 being mounted in a bottom magnet mounting groove 112 of the frame 10. The side magnet 81 corresponds to the side coil 611 on the circuit board 60 on the same side, the bottom magnet 82 corresponds to the bottom coil 621 of the circuit board 60, and the sensor 622 is located directly below the bottom magnet 82. When the first side coil 611 and the second side coil 612 are energized, the first side coil 611 and the first side magnet 341 attract each other, and the second side coil 612 and the second side magnet 342 repel each other, thereby forcing the carrier 30 to rotate about the vertical axis, also referred to as the first axis, relative to the base 40. When the bottom coil is energized, the carrier 30 is forced to rotate around a second axis, also called a horizontal axis, relative to the base 40, so that two-axis rotation of the carrier relative to the base is realized, and when the carrier is matched with other periscopic lens driving devices, better optical anti-shake and automatic focusing effects can be realized.

A lens driving mechanism 200 according to another embodiment of the present invention is described below with reference to fig. 13. Only the differences between the lens driving mechanism 200 and the lens driving mechanism 100 will be described below, and the same parts will not be described in detail.

Fig. 13 is a perspective view of an assembly in which the base 40A, the first group of springs 21A, the second group of springs 22A, the frame 10A, and the carrier 30A are assembled together. As shown in fig. 13, the carrier 30A includes a main body 31A, and grooves 32A are provided on the upper surface and the front surface of the main body 31A, the grooves 32A being for fitting with the prisms. The light enters from the upper surface of the prism and leaves the prism from the front surface after passing through the prism. A first barrier 361A and a second barrier 362A are formed at both sides of the groove 32A, respectively, the first barrier 361A and the second barrier 362A surround the groove 32A from the left and right sides, and when the prism is disposed in the groove 32A, both sides of the prism are completely blocked by the first barrier 361A and the second barrier 362A, thereby protecting the prism. Two first reed mounting parts 33A are provided on the outer side surfaces of the first shutter 361A and the second shutter 362A, respectively. Specifically, the first reed mounting part 33A is provided at an upper portion of the side surfaces of the first shutter 361A and the second shutter 362A, and is preferably located at the same height. The first shutter 361A or the second shutter 362A is provided with two first reed installing parts 33A, respectively.

The frame 10A integrally includes a frame bottom 11A and a frame rear 12A formed integrally. The frame back part 12A is integrally formed by extending upwards from the back side of the frame bottom part 11A, the frame bottom part 11A is further provided with a first reed installing part 111A and a second reed installing part 112A, the first reed installing part 111A integrally extends upwards from the upper surface of the bottom part 11A to form and extends for a certain distance along the height direction of the frame 10A, when the carrier 30A is installed in the frame 10A, the first reed installing parts 111A are positioned at two sides of the carrier 30A and aligned with the carrier reed installing parts 33A of the carrier 30A, one ends of the first group of reeds 22A are connected to the back surface of the first reed installing part 33A of the carrier 30A, and the other ends of the first group of reeds 22A are connected to the back surface of the first reed installing part 111A of the frame 10A. The second reed mounting part 112A of the frame 10A is provided on both sides of the first reed mounting part 111A. Specifically, the rear end of the second reed mounting part 112A is connected to the frame rear part 12A, the bottom end of the second reed mounting part 112A is connected to the frame bottom part 11A, and the height of the second reed mounting part 112A is gradually reduced from the rear end to the front end and forms an inclined surface at the top to be connected with the second group of reeds 22A, the middle part of the inclined surface is broken to form a first groove 113A, and the first groove 113A is matched with the middle part of the second group of reeds 22A.

The base 40A is similar to the frame 10A in shape and structure, and includes a base bottom 41A, a base rear 42A, and a base side 43A, wherein a bottom coil avoiding groove is formed in the middle of the base bottom 41A to match with a bottom coil on the circuit board. The two sides of the bottom coil avoiding groove are also provided with lower reed mounting parts avoiding grooves, the lower reed mounting parts at the bottom of the frame 10A extend into the lower reed mounting parts avoiding grooves, and the rear part 42A of the base is formed with a side circuit avoiding groove to be matched with a side coil on the circuit board. The rear end of base side 43A is connected to base rear portion 42A, the bottom end of base side 43A is connected to base bottom portion 41A, and base side 43A forms a base spring mounting portion whose height gradually decreases from the rear end toward the front end, forming an inclined surface for connecting second group spring 22A. The height of the base reed mounting part 43A coincides with the height of the second reed mounting part 112A of the frame 10A, and the inclination angles are the same, and a part of the second group reed 22A is connected to the second reed mounting part 112A of the frame 10A, and the other part of the second group reed 22A is connected to the base reed mounting part 43A.

With continued reference to fig. 13, one end of the first set of springs 21A is connected to the carrier spring mounting portion 33A of the carrier 30A, and the other end of the first set of springs 21A is connected to the first spring mounting portion 111A of the frame 10A. The second set of springs 22A includes a first portion 221A and a second portion 222A, the first portion 221A being coupled to the second spring mounting portion 112A of the frame 10A, and the second portion 222A being coupled to the base spring mounting portion 413A of the base 40A. The first portion 211A and the second portion 212A are connected by a connection 213A. As shown in fig. 13, in the present embodiment, the lens driving mechanism 200 generally includes an outer layer, a middle layer, and an inner layer, the carrier 10A is the inner layer for carrying optical elements such as a lens to enable the inner layer to rotate about a vertical axis perpendicular to the bottom of the mount, the frame 10A is the middle layer for enabling the middle layer (i.e., the frame) to rotate about a horizontal axis perpendicular to the sides of the carrier, and the mount 40A is the outer layer which is a fixed portion. Thus, by the action of the frame 10A, the carrier 10A can be rotated relative to the base 40A about two mutually perpendicular axes.

A lens driving mechanism 300 according to another embodiment of the present invention is described below with reference to fig. 14. The lens driving mechanism 300 is similar to the lens driving mechanism 200, and only the differences between the lens driving mechanism 300 and the lens driving mechanism 200 will be described below, and the details of the same parts will not be described.

In this embodiment, the first group of the reeds 21B is horizontally disposed and the second group of the reeds 22B is vertically disposed. The carrier of the lens driving mechanism 300 is the same as that of the lens driving mechanism 200 except for the frame and the chassis. The frame 10B integrally includes a frame bottom 11B and a frame rear 12B formed integrally. The frame back part 12B is integrally formed by extending upward from the back side of the frame bottom part 11B, the frame bottom part 11B is further provided with a first reed mounting part 111B and a second reed mounting part 112B, the first reed mounting part 111B integrally extends upward from the lower surface of the frame bottom part 11B and extends for a certain distance along the height direction of the frame 10B, when the carrier 30A is mounted in the frame 10B, the first reed mounting parts 111B are located on both sides of the carrier 30A and are aligned with the first reed mounting parts 33A of the carrier 30A, one ends of the first group of reeds 22B are connected to the back surface of the carrier reed mounting parts 33B of the carrier 30B, and the other ends of the first group of reeds 22B are connected to the first reed mounting part 111B of the frame 10B. The second reed mounting part 112B of the frame 10B is disposed outside the first reed mounting part 111B, specifically, the rear end of the second reed mounting part 112B of the frame 10B is connected to the frame rear part 12B, the bottom end of the second reed mounting part 112B of the frame 10B is connected to the frame bottom 11B, the second reed mounting part 112B of the frame 10B has a uniform height from the rear end to the front end and forms a plane parallel to the base at the top, and the second group of reeds 22B are mounted on the plane. In one embodiment, the second reed mounting part 112B of the frame 10B is an integral structure with the first reed mounting part 111B, the first reed mounting part 111B is formed to protrude upward from the front end of the bottom part 11B, the rear end of the second reed mounting part 112B is connected to the frame rear part 12B, and the front end of the second reed mounting part 112B is connected to the first reed mounting part 111B. The middle of the second reed mounting part 112B is broken to form a first groove 131B so that the middle of the first part 221B of the second set of reeds 22B is located above the first groove 131B.

The base 40B is similar in shape and structure to the frame 10B and includes a base bottom 41B, a base rear 42B, and a base side 43B, and a bottom coil avoiding groove is provided in the middle of the base bottom 41B to cooperate with a bottom coil on the circuit board. The two sides of the bottom coil avoiding groove are also provided with lower reed mounting parts avoiding grooves, the lower reed mounting parts at the bottom of the frame 10B stretch into the lower reed mounting parts avoiding grooves, and the rear part 42B of the base 40B is formed with side circuit avoiding grooves to be matched with the side coils on the circuit board. The rear end of base side 43B is connected to base rear 42B, the bottom end of base side 43B is connected to base bottom 41B, and the height of base side 43B is uniform from the rear end to the front end, forming a plane parallel to the bottom, and base side 43B forms base spring attachment portion 431B for attaching second set of springs 22B.

With continued reference to fig. 14, one end of the first group of springs 21B is connected to the carrier spring mounting portion 33A of the carrier 30A, and the other end of the first group of springs 21B is connected to the first spring mounting portion 111B of the frame 10B. The second set of springs 22B includes a first portion 221B and a second portion 222B, the first portion 221B is connected to the second spring mounting portion 112B of the frame 10B, and the second portion 222B is connected to the base spring mounting portion 413B of the base 40B. The first portion 211B and the second portion 212B are connected by a connection portion 213B. As shown in fig. 14, in the present embodiment, the lens driving mechanism 300 generally includes an outer layer, a middle layer, and an inner layer, the carrier 10B is the inner layer for carrying optical elements such as a lens to enable the inner layer to rotate about a vertical axis perpendicular to the bottom of the mount, the frame 10B is the middle layer for enabling the middle layer to rotate about a horizontal axis perpendicular to the side of the carrier, and the mount 40B is the outer layer which is a fixed portion. Thus, by the action of the frame 10B, the carrier 10B can be rotated about two axes with respect to the base 40B.

It should be noted that the terms "first group of reeds" and "second group of reeds" are used herein mainly for distinguishing the position and the function, and the shapes and the structures thereof may be the same or different, and further, they may be referred to as singular concepts or plural concepts, and they refer to one of the reeds as the singular concepts or plural reeds as the plural concepts.

To sum up, the utility model discloses an utilize two reeds to guarantee to reset to and inject motion range, reduce part quantity and simplify technology.

The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims (15)

1. A prism driving device is characterized by comprising a carrier, a frame, a base, a first group of reeds, a second group of reeds and a circuit board,

the carrier is used for bearing a prism and is rotatably connected with the frame through the first group of reeds, the frame is rotatably connected with the base through the second group of reeds, the circuit board is installed on the base and is provided with a bottom coil and a side coil, the bottom of the frame is provided with a bottom magnet corresponding to the bottom coil, the side of the carrier is provided with a side magnet corresponding to the side coil, the bottom coil is matched with the bottom magnet, and the side coil is matched with the side magnet to drive the carrier to rotate around two mutually vertical axes, wherein the bottom coil is matched with the bottom magnet, and the side coil is matched with the side magnet to drive the carrier to rotate around the two mutually

The first set of springs is disposed on both sides of the carrier and the second set of springs is disposed on both sides of the frame.

2. The prism drive apparatus according to claim 1, wherein the carrier is rotatable about a vertical axis with respect to the frame, and the frame is rotatable about a horizontal axis with respect to the base.

3. The prism drive apparatus according to claim 1, wherein a bottom of the frame protrudes upward with a first reed fitting part and a second reed fitting part, the first reed fitting part being disposed on both sides of the carrier, and the second reed fitting part being disposed on both sides of the first reed fitting part.

4. A prism drive arrangement according to claim 3, wherein both sides of the carrier are provided with carrier reed mounts, both sides of the base are provided with base reed mounts, the first set of reeds being connected to the carrier reed mounts and the first reed mounts, the second set of reeds being connected to the base reed mounts and the second reed mounts.

5. The prism driver according to claim 4, wherein the carrier spring mount is coplanar with a rear surface of the first spring mount, an upper end of the first set of springs is attached to the rear surface of the carrier spring mount, and a lower end of the first set of springs is attached to the rear surface of the first spring mount when the carrier is mounted to the frame.

6. The prism driver according to claim 4, wherein the second group of springs includes a first portion for connecting the second spring mounting portion and a second portion for connecting the base spring mounting portion, the first portion and the second portion being connected by a connecting portion.

7. The prism drive apparatus according to claim 3, wherein the frame includes a frame bottom and a frame rear integrally formed, the frame rear integrally protruding upward from a rear side of the frame bottom, the frame bottom is provided with the first reed fitting portion integrally protruding upward from an upper surface of the frame bottom and extending in a height direction of the frame, a rear end of the second reed fitting portion is connected to the frame rear, and a bottom end of the second reed fitting portion is connected to the frame bottom.

8. The prism driving apparatus according to claim 3, wherein the second spring mounting portion has a first groove recessed toward the bottom on an upper surface thereof, and a front protrusion and a rear protrusion are formed in front of and behind the first groove, respectively, to be connected to front and rear ends of the second set of springs.

9. The prism driving apparatus according to claim 3, wherein the second spring mounting portion has a height gradually decreasing from a rear end to a front end and forms an inclined surface at a top portion.

10. The prism drive apparatus according to claim 3, wherein the second reed fitting part has a height that is uniform from the rear end to the front end and forms a plane parallel to the bottom at the top.

11. The prism driving apparatus according to claim 4, wherein the base includes a base bottom, a base rear portion, and base side portions, rear ends of the base side portions are connected to the base rear portion, lower ends of the base side portions are connected to the base bottom portion, the base side portions form the base reed mounting portions, and the base reed mounting portions are matched in height to the second reed mounting portions.

12. The prism drive apparatus according to claim 11, wherein the base spring mounting portion has a height gradually decreasing from a rear end to a front end and forms an inclined surface at a top portion.

13. The prism drive apparatus according to claim 11, wherein the height of the base spring mounting portion is uniform from the rear end to the front end and forms a plane parallel to the base.

14. The prism driving apparatus according to claim 1, wherein the first group of the spring pieces are arranged in a vertical direction, and the second group of the spring pieces are arranged in a horizontal direction or inclined.

15. The prism driver according to claim 4, wherein an upper surface of the base spring mount is coplanar with an upper surface of the second spring mount.

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