Optical Element Driving Mechanism

Abstract

The present invention discloses an optical element driving mechanism, which includes a carrier, a frame, an upper reed, a lower reed, a magnet group and a bottom circuit board. The carrier is used for mounting an optical element and is wound with a carrier coil. The frame has a central opening, and a frame side is formed around the central opening. The carrier is disposed within the central opening. The magnet group is disposed on the frame side and cooperates with the carrier coil. The lower reed movably connects the lower surfaces of the frame and the carrier, and the upper reed movably connects the upper surfaces of the frame and the carrier. The bottom circuit board is disposed at the bottom of the frame and the carrier. A frame-embedded metal sheet is provided within the frame, and the frame-embedded metal sheet electrically connects the lower reed and the carrier coil. The optical element driving mechanism of the present invention has the technical effects of simple structure, stable circuit, and convenient and rapid installation.

Description

Technical Field

[0001] The present invention relates to the technical field of optical imaging devices, and particularly relates to an optical element driving mechanism. Background Art

[0002] With the development of technology, many current electronic devices (such as smart phones or digital cameras) have the functions of taking photos or videos. The use of these electronic devices is becoming more and more common, and they are developing towards a convenient, thin and light design direction to provide users with more choices. However, in the current mobile phone shooting process, sometimes the photos taken are blurry, that is, the captured image is not clear enough, and even double images or blurring occur. These reasons, in addition to occasional out-of-focus (that is, the camera fails to focus normally), are largely due to slight jitter during the exposure of the photographed scene.

[0003] However, most of the sensors of current mobile phone cameras are placed in the module outside the motor. The side FPC uses a flexible circuit board, resulting in problems such as warping. The sensor detection is unstable. At the same time, when the side FPC uses a flexible circuit board, uneven installation will affect the actual movement stroke. Summary of the Invention

[0004] The purpose of the present invention is to provide an optical element driving mechanism to solve the problems of warping of the side FPC of the optical element driving mechanism and unstable sensor detection, resulting in unsatisfactory imaging quality.

[0005] To solve the above problems, according to one aspect of the present invention, an optical element driving mechanism is provided, including a carrier, a frame, an upper spring piece, a lower spring piece, a magnet group, and a bottom circuit board. The carrier is used for installing an optical element and is wound with a carrier coil. The frame has a central opening, and a frame side portion is formed around the central opening. The carrier is disposed in the central opening. The magnet group is disposed on the frame side portion and cooperates with the carrier coil. The lower spring piece movably connects the lower surfaces of the frame and the carrier, and the upper spring piece movably connects the upper surfaces of the frame and the carrier. The bottom circuit board is disposed at the bottom of the frame and the carrier. A frame-embedded metal sheet is provided in the frame, and the frame-embedded metal sheet electrically connects the lower spring piece or the upper spring piece to the carrier coil.

[0006] In one embodiment, the frame-embedded metal sheet has an electrical component connection portion and a plurality of circuit connection ends, and the electrical component connection portion is electrically connected to the plurality of circuit connection ends.

[0007] In one embodiment, the electrical component connection portion is installed on one side portion of the frame, and an electrical component installation groove is provided on this side portion. The electrical component is installed in the electrical component installation groove and is electrically connected to the electrical component connection portion.

[0008] In one embodiment, the plurality of circuit connection terminals protrude from the upper surface or the lower surface of the frame and are electrically connected to the upper reed or the lower reed.

[0009] In one embodiment, the plurality of circuit connection terminals are integrally formed by protruding a metal sheet embedded in the frame.

[0010] In one embodiment, the plurality of circuit connection terminals include a first circuit connection terminal protruding from the upper surface of the frame and a second circuit connection terminal protruding from the lower surface of the frame. The first circuit connection terminal is electrically connected to the upper reed, and the second circuit connection terminal is electrically connected to the lower reed.

[0011] In one embodiment, both ends of the electrical component connection portion extend along the side portion of the frame to form a first side portion and a second side portion of the frame-embedded metal sheet. The first side portion and the second side portion of the frame-embedded metal sheet are respectively arranged in two opposite side portions of the frame. The first side portion and the second side portion of the frame-embedded metal sheet respectively extend to the side portion opposite to the electrical component connection portion and are bent upward to form two of the first circuit connection terminals. The electrical component connection portion extends upward to form another two first circuit connection terminals, and the electrical component connection portion extends downward to form two of the second circuit connection terminals.

[0012] In one embodiment, the frame has four frame side portions and four frame corner portions. One frame corner portion is provided between every two frame side portions. The magnet group includes three magnets. The three magnets are arranged on three of the frame side portions of the frame. The electrical component connection portion is installed on the frame side portion of the frame where no frame magnet is provided. The frame corner portion is provided with a carrier limiting structure, and the carrier limiting structure cooperates with the carrier to limit the movement range of the carrier.

[0013] In one embodiment, the carrier limiting structure includes two protruding portions integrally extending from the inner wall of the frame and a limiting groove formed between the two protruding portions. A damping rubber mounting portion is provided at the bottom of the limiting groove. The carrier is provided with a limiting protrusion that cooperates with the limiting groove. The limiting protrusion is provided with a damping rubber mounting groove, and the damping rubber mounting groove cooperates with the damping rubber mounting portion to mount damping rubber.

[0014] In one embodiment, the upper reed is electrically connected to the frame-embedded metal sheet. The optical element driving mechanism further includes a suspension wire. The suspension wire is arranged at the four corners of the optical element driving mechanism and electrically connects the bottom circuit board to the upper reed.

[0015] In one embodiment, the optical element driving mechanism further includes a side sensor and a bottom sensor. A sensor magnet is provided at a position on the carrier corresponding to the side sensor. The side sensor is installed in the electrical component installation groove and electrically connected to the electrical component connection part. Wherein, the side sensor cooperates with the sensor magnet to detect the displacement of the carrier along the optical axis direction, and the bottom sensor is installed on the bottom circuit board and cooperates with at least some of the magnets in the magnet group to detect the displacement of the carrier on a plane perpendicular to the optical axis.

[0016] Compared with the prior art, the present invention uses a metal sheet embedded in the frame for circuit conduction, enabling the frame to have the function of a side flexible printed circuit board (side FPC). Compared with the solution of realizing circuit connection through a flexible printed circuit board, it has the technical effects of simple structure, stable sensor detection, and convenient and fast installation. At the same time, the metal sheet embedded in the frame can also strengthen the structural strength of the frame and improve the service life of the entire optical element driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an exploded perspective view of an optical element driving mechanism according to an embodiment of the present application;

[0018] Figure 2 is a perspective view of a carrier according to an embodiment of the present application.

[0019] Figure 3 is a perspective view of a frame according to an embodiment of the present application.

[0020] Figure 4 is a perspective view of a metal sheet embedded in a frame according to an embodiment of the present application.

[0021] Figure 5 is a cross-sectional view of an optical element driving mechanism according to an embodiment of the present application.

[0022] Figure 6 is a perspective view of an upper spring piece according to an embodiment of the present application.

[0023] Figure 7 is a perspective view of a lower spring piece according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe the preferred embodiments of the present invention in detail with reference to the accompanying drawings, so as to more clearly understand the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not a limitation on the scope of the present invention, but only to illustrate the essential spirit of the technical solution of the present invention.

[0025] In the following description, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, one of ordinary skill in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail so as not to unnecessarily obscure the description of the embodiments.

[0026] References to "one embodiment" or "an embodiment" in the specification throughout mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Additionally, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0027] In the following description, for the purpose of clearly showing the structure and working mode of the present invention, many directional terms will be used for description. However, words such as "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "up", "down", etc. should be understood as convenient terms and not as limiting terms.

[0028] This application generally relates to an optical element driving mechanism, which can be used in terminal products such as mobile phones and tablet computers to cooperate with optical elements to achieve functions such as taking pictures and recording videos. The optical element driving mechanism may include a carrier, a frame, an upper spring piece, a lower spring piece, a magnet group, and a bottom circuit board. The carrier is used to mount the optical element and is wound with a carrier coil. The frame has a central opening, and a frame side portion is formed around the central opening. The carrier is disposed within the central opening. The magnet group is disposed on the frame side portion and cooperates with the carrier coil. The lower spring piece movably connects the lower surfaces of the frame and the carrier, and the upper spring piece movably connects the upper surfaces of the frame and the carrier. The bottom circuit board is disposed at the bottom of the frame and the carrier. A frame-embedded metal sheet is provided within the frame, and the frame-embedded metal sheet electrically connects the lower spring piece or the upper spring piece to the carrier coil.

[0029] In one embodiment, a bottom coil is provided within the circuit board. The bottom coil is arranged below the magnet group and cooperates with the magnet group to drive the carrier to move in a plane perpendicular to the optical axis to achieve the optical image stabilization function. The carrier coil cooperates with the magnet group to drive the carrier to move along the optical axis direction to achieve the zoom function.

[0030] In one embodiment, the optical element driving mechanism further includes suspension wires. The suspension wires are disposed at the four corners of the optical element driving mechanism and electrically connect the bottom circuit board to the upper spring piece. The upper spring piece is electrically connected to the frame-embedded metal sheet, and the frame-embedded metal sheet is electrically connected to the lower spring piece, so that the current of the bottom circuit board is introduced into the carrier coil through the frame-embedded metal sheet.

[0031] In one embodiment, one end of the suspension wire is fixed to the base, and the carrier and the frame are suspended on the base through the suspension wire. Here, the lower reed can be in contact with the base or not, and no limitation is imposed here.

[0032] The following refers to Figure 1-7 a detailed description of an embodiment of the present application.

[0033] Figure 1 is an exploded perspective view of an optical element driving mechanism 100 according to an embodiment of the present application. As Figure 1 shown, the optical element driving mechanism 100 includes a housing 10, an upper reed 11, a carrier 20, a side sensor magnet 22, a frame 30, a frame-embedded metal sheet 40, a magnet group 50, a lower reed 12, a bottom circuit board 70, and a base 80. Among them, a carrier coil 21 is wound on the carrier 20, and a sensor magnet 22 is provided on one side thereof. The frame-embedded metal sheet 40 is disposed within the frame 30 and has a circuit connection end and an electrical component connection portion. The electrical component connection portion is used to mount various electrical components and is electrically connected to the circuit connection end. The electrical components can be components such as sensors. The frame 30 has a central opening for mounting the carrier, and a frame side portion of the frame 30 is formed around the central opening. Among them, the magnet group 50 includes three magnets, and the three magnets are respectively mounted on three frame side portions 31 of the frame 30. Another frame side portion 32 cooperates with the electrical component connection portion of the frame-embedded metal sheet 40 and is provided with an electrical component mounting groove 33 (refer to Figure 3 ), and electrical components such as side sensors are arranged in the electrical component mounting groove 33 and are electrically connected to the electrical component connection portion of the frame-embedded metal sheet 40.

[0034] The upper reed 11 movably connects the upper surface of the frame 30 to the upper surface of the carrier 20, and the lower reed 12 movably connects the lower surface of the frame 30 to the lower surface of the carrier 20. In one embodiment, the optical element driving mechanism further includes a suspension wire 71. The suspension wire 71 is installed at the corner of the optical element driving mechanism and is fixed to the base 80 at one end, suspending the frame 30 and the carrier 20 on the base 80. The upper reed 11 is electrically connected to the frame-embedded metal sheet 40, and the lower reed 12 is electrically connected to the frame-embedded metal sheet and the carrier coil 21. The current flows from the bottom circuit board 70 through the suspension wire 71 to the upper reed 11, and then from the upper reed 11 to the frame-embedded metal sheet 40, and through the frame-embedded metal sheet 40 to the carrier coil 21.

[0035] Therefore, in the present application, by providing a metal sheet embedded in the frame, on the one hand, the structural strength of the frame is enhanced, and on the other hand, circuit conduction is achieved through the metal sheet embedded in the frame, avoiding the use of side flexible circuit boards, and eliminating problems such as warping of the side flexible circuit boards, unstable sensor detection, and uneven installation of the side flexible circuit boards affecting the actual movement stroke. It has the beneficial technical effects of simple structure and stable performance.

[0036] Figure 2 is a perspective view of a carrier 20 according to an embodiment of the present application. Figure 3 is a perspective view of a frame 30 according to an embodiment of the present application. As Figure 2-3 shown, the carrier 20 has a central opening for mounting an optical element, and four carrier side portions and four carrier corner portions are formed around the central opening. A carrier corner portion is formed between every two carrier side portions, and carrier coils 21 are provided on a pair of opposite carrier side portions. The frame 30 includes four frame side portions and four frame corner portions. A frame corner portion is formed between every two frame side portions. The magnet group 50 includes three magnets, and the three magnets are respectively mounted on three of the frame side portions of the frame 30. One pair of the magnets of the magnet group 50 mounted on a pair of opposite side portions of the frame 30 cooperate with the carrier coils 21 on the carrier 20 to drive the carrier 20 to move in the optical axis direction, realizing the optical zoom function.

[0037] Referring to Figure 2-3 , a carrier limiting structure 34 is provided on the inner wall of each frame corner portion. The carrier limiting structure 34 cooperates with the carrier 20 and limits the carrier 20 within a certain range. In this embodiment, the carrier limiting structure 34 includes two protruding portions 341 integrally extending inward from the inner wall of the frame, and a limiting groove is formed between the two protruding portions 341. A damping glue mounting portion 342 is provided at the bottom of the limiting groove. Correspondingly, the carrier 20 is provided with a limiting protrusion 23 that cooperates with the limiting groove. A damping glue mounting groove 24 is provided on the limiting protrusion 23. The damping glue mounting groove 24 cooperates with the damping glue mounting portion 342 of the frame 30 to mount damping glue, increasing the smoothness when the carrier 20 moves relative to the frame 30.

[0038] Figure 4 is a perspective view of a metal sheet embedded in the frame according to an embodiment of the present application. As Figure 4As shown, the frame-embedded metal sheet 40 as a whole forms a substantially U-shaped structure. The bottom of the U-shaped structure forms an electrical component connection part 42. The electrical component connection part 42 is installed on the side of the frame 30 where no magnet is installed and cooperates with the side of the carrier 20 where the carrier sensor magnet is provided. From both ends of the electrical component connection part 42, the first side part 43 and the second side part 44 of the frame-embedded metal sheet 40 extend along the side of the frame 30. The first side part 43 and the second side part 44 are respectively arranged in two opposite sides of the frame 30, and the first side part 43 and the second side part 44 respectively extend to the side opposite to the electrical component connection part 42 and are bent upward to form two first circuit connection ends 45. The electrical component connection part 42 respectively protrudes upward and downward to form another two first circuit connection ends 45 and two second circuit connection ends 41. The four first circuit connection ends 45 and the two second circuit connection ends 41 are all electrically connected to the electrical component connection part 42. When the frame-embedded metal sheet 40 is arranged in the frame 30, the four first circuit connection ends 45 protrude from the upper surface of the frame 30 and are electrically connected to the upper spring piece 11, and the two second circuit connection ends 41 protrude from the lower surface of the frame 30 and are electrically connected to the lower spring piece 12.

[0039] Figure 5 is a cross-sectional view of the optical element driving mechanism 100 according to an embodiment of the present application. As Figure 5 shown, the carrier 20 is used to install the optical element and is arranged in the frame 30. Two opposite carrier side parts of the carrier 20 are provided with carrier coils 21. The carrier coils 21 cooperate with a pair of magnets correspondingly installed on the frame 30, so as to drive the carrier 20 to move along the optical axis direction when powered on, realizing the optical zoom function. The carrier side part of the carrier 20 corresponding to the side sensor (not shown in the figure) installed on the frame 30 is provided with a sensor magnet 22. The sensor magnet 22 cooperates with the side sensor (not shown in the figure) to detect the displacement of the carrier in the optical axis direction.

[0040] The bottom circuit board 70 is fixedly installed on the base 80 and is provided with a plurality of bottom coils 81. The plurality of bottom coils 81 are arranged in the bottom circuit board 70 and correspondingly cooperate with the magnet group 50. When the bottom coils 81 are powered on, the frame 30 is driven to drive the carrier 20 to move horizontally through electromagnetic induction, thereby realizing the optical image stabilization function. That is to say, one pair of opposite magnets in the magnet group 50 cooperate with the carrier coils 21 on the carrier to drive the carrier to move along the optical axis direction to realize the optical zoom function, and also cooperate with the bottom coils 81 on the base 80 to drive the frame to drive the carrier to move in a plane perpendicular to the optical axis, such as moving along the X-axis and Y-axis perpendicular to the Z-axis (the axis extending in the optical axis direction), so as to realize the optical image stabilization function. In one embodiment, a bottom sensor (not shown in the figure) is arranged in the bottom coil 81. The bottom sensor cooperates with the magnet group 50 to detect the displacement of the carrier in a plane perpendicular to the optical axis.

[0041] Figure 6 is a perspective view of the upper spring piece according to an embodiment of the present application, Figure 7 and is a perspective view of the lower spring piece according to an embodiment of the present application. Referring to Figure 6-7 , the upper spring piece 11 includes a first part 111 of the upper spring piece fixedly connected to the upper surface of the frame 30 and a second part 112 of the upper spring piece fixedly connected to the upper surface of the carrier 20. The first part 111 of the upper spring piece and the second part 112 of the upper spring piece are connected by a bent connecting portion 113 of the upper spring piece. Since the connecting portion 113 of the upper spring piece is formed with a bent portion, the first part 111 of the upper spring piece and the second part 112 of the upper spring piece can move relative to each other. Similarly, the lower spring piece 12 also includes a first part 121 of the lower spring piece movably connected to the lower surface of the frame 30 and a second part 122 of the lower spring piece movably connected to the lower surface of the carrier 20. The first part 121 of the lower spring piece and the second part 122 of the lower spring piece are connected by a bent connecting portion 123 of the lower spring piece. Since the connecting portion 123 of the lower spring piece is formed with a bent portion, the first part 121 of the lower spring piece and the second part 122 of the lower spring piece can move relative to each other.

[0042] The carrier 20 and the frame 30 are connected by the upper spring piece 11 on the upper surface and the lower spring piece 12 on the lower surface respectively. Therefore, the carrier 20 can move relative to the frame 30 within a certain range. Specifically, when the carrier coil 21 on the carrier 20 is energized, it cooperates with the magnet group 50 in the frame 30, so that the carrier moves in the optical axis direction relative to the frame, realizing the zoom function. When the bottom coil 81 in the base 80 is energized, it cooperates with the magnet group 50 in the frame 30 to drive the frame 30 to drive the carrier 20 to move in a plane perpendicular to the optical axis. At this time, there is basically no relative movement or only a small amount of relative movement between the frame 30 and the carrier 20.

[0043] In one embodiment, the lower reed 12 is further provided with a coil connection portion 124 and a metal sheet connection portion 125 embedded in the lower reed frame. The coil connection portion 124 is electrically connected to the carrier coil 21, and the metal sheet connection portion 125 embedded in the lower reed frame is electrically connected to the metal sheet 40 embedded in the frame. Specifically, the metal sheet connection portion 125 embedded in the lower reed frame is electrically connected to the second circuit connection end of the metal sheet 40 embedded in the frame. The upper reed 11 is provided with a suspension connection portion 114 and a metal sheet connection portion 115 embedded in the upper reed frame. The metal sheet connection portion 115 embedded in the upper reed frame is electrically connected to the metal sheet embedded in the frame, and the suspension connection portion 114 is connected to the suspension wire 71. Specifically, suspension wires 71 are respectively provided at the four corner portions of the optical element driving mechanism 100. One end of the suspension wire 71 is electrically connected to the suspension connection portion 114, and the other end of the suspension wire 71 is electrically connected to the bottom circuit board 70, so that the bottom circuit board 70 is electrically connected to the upper reed 11 through the suspension wire 71. The current passes through the bottom circuit board 70 to reach the suspension wire 71, passes through the suspension wire 71 to reach the upper reed 11, passes through the upper reed 11 to reach the metal sheet 40 embedded in the frame, passes through the metal sheet 40 embedded in the frame to flow to the lower reed 12, and then passes through the lower reed 12 to flow to the carrier coil 21. The carrier coil 21 cooperates with the magnet group 50 to drive the carrier 20 to move along the optical axis direction.

[0044] It should be noted that, in this embodiment, the upper reed 11 is generally composed of four independent parts. The structure and shape of each part are basically the same, and each includes the features of the upper reed described above, such as including the first part, the second part, the suspension connection portion, and the metal sheet connection portion embedded in the upper reed frame, etc. However, in other embodiments, the upper reed 11 may not be composed of four independent parts, but may be composed of, for example, two independent parts, or three independent parts, or one part, and not all of these features must be included in each part.

[0045] Similarly, in the embodiment described above, the lower reed 12 is also composed of four independent parts. Among them, the structures and shapes of two parts are the same, including the first part 121 connected to the frame, the second part 122 connected to the carrier, the connection portion 123 connecting the first part 21 and the second part 22, the coil connection portion 124, and the metal sheet connection portion 125 embedded in the lower reed frame. The other two parts only include the first part 121 connected to the frame, the second part 122 connected to the carrier, and the connection portion 123 connecting the first part 21 and the second part 22. In other embodiments, the lower reed 12 may also be composed of three independent parts, five independent parts, two independent parts, or one part, etc. The structures and functions of each part may be the same or different, and are not limited herein.

[0046] During assembly, the metal sheet 40 embedded in the frame is installed inside the frame 30. The sensor magnet 21 is inserted into the carrier 20. The lower leaf spring 12 is fixedly connected to the carrier 20. Then, each magnet is respectively installed on each side of the frame 30 and fixed. Next, the carrier assembly is loaded into the frame 30. The upper leaf spring 11 is fixedly connected to the upper surfaces of the frame 30 and the carrier 20. The bottom circuit board 70 is installed on the base 80. Then, the frame and the carrier with the upper and lower leaf springs fixed are suspended on the base assembly through the suspension wire 71. Finally, all the components composed of the frame and the carrier are encapsulated in the space defined by the housing 10 and the base 80 by the housing 10 and the base 80.

[0047] The present invention uses a metal sheet embedded in the frame for circuit conduction, enabling the frame to have the function of a side flexible printed circuit board (side FPC). Compared with the solution that realizes circuit connection through a metal sheet embedded in the frame and a flexible printed circuit board, it has the technical effects of simple structure, stable sensor detection, and convenient and fast installation. At the same time, since there is a metal sheet embedded in the frame, it can also enhance the structural strength of the frame and improve the service life of the entire optical element driving mechanism.

[0048] The preferred embodiments of the present invention have been described in detail above. However, it should be understood that after reading the above teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. An optical element driving mechanism, characterized in that, It includes a carrier, a frame, an upper spring piece, a lower spring piece, a magnet group, and a bottom circuit board. The carrier is used to mount optical elements and is wound with a carrier coil. The frame has a central opening, and a frame side portion is formed around the central opening. The carrier is disposed within the central opening. The magnet group is disposed on the frame side portion and cooperates with the carrier coil. The lower spring piece movably connects the lower surfaces of the frame and the carrier, and the upper spring piece movably connects the upper surfaces of the frame and the carrier. The bottom circuit board is disposed at the bottom of the frame and the carrier. A frame-embedded metal sheet is provided within the frame, and the frame-embedded metal sheet electrically connects the lower spring piece and the carrier coil; The frame-embedded metal sheet has an electrical component connection portion and a plurality of circuit connection ends, and the electrical component connection portion is electrically connected to the plurality of circuit connection ends; The frame-embedded metal sheet integrally forms a substantially U-shaped structure. The bottom of the U-shaped structure forms the electrical component connection portion. The electrical component connection portion is installed on the side portion of the frame where no magnet is installed and cooperates with the side portion of the carrier where a carrier sensor magnet is provided. An electrical component installation groove is provided on the side portion of the frame where no magnet is installed, and an electrical component is installed in the electrical component installation groove and electrically connected to the electrical component connection portion; The plurality of circuit connection ends include a first circuit connection end protruding upward from the upper surface of the frame and a second circuit connection end protruding downward from the lower surface of the frame. The first circuit connection end is electrically connected to the upper spring piece, and the second circuit connection end is electrically connected to the lower spring piece. The plurality of circuit connection ends are integrally extended from the frame-embedded metal sheet; Both ends of the electrical component connection portion extend along the side portion of the frame to form a first side portion and a second side portion of the frame-embedded metal sheet. The first side portion and the second side portion of the frame-embedded metal sheet are respectively arranged within two opposite side portions of the frame. The first side portion and the second side portion of the frame-embedded metal sheet respectively extend to the side portion opposite to the electrical component connection portion and are bent upward to form two of the first circuit connection ends. The electrical component connection portion extends upward to form two other first circuit connection ends, and the electrical component connection portion extends downward to form two of the second circuit connection ends.

2. The optical element driving mechanism according to claim 1, wherein The frame has four frame side portions and four frame corner portions. One frame corner portion is provided between every two frame side portions. The magnet group includes three magnets, and the three magnets are disposed on three of the frame side portions of the frame. The electrical component connection portion is installed on the frame side portion of the frame where no frame magnet is provided, and a carrier limiting structure is provided at the frame corner portion. The carrier limiting structure cooperates with the carrier to limit the movement range of the carrier.

3. The optical element driving mechanism according to claim 2, wherein The carrier limiting structure includes two protruding portions integrally extending from the inner wall of the frame and a limiting groove formed between the two protruding portions. A damping rubber mounting portion is provided at the bottom of the limiting groove; the carrier is provided with a limiting protrusion that cooperates with the limiting groove, and the limiting protrusion is provided with a damping rubber mounting groove, and the damping rubber mounting groove cooperates with the damping rubber mounting portion to mount the damping rubber.

4. The optical element driving mechanism according to claim 1, wherein The optical element driving mechanism further includes suspension wires. The suspension wires are arranged at the four corners of the optical element driving mechanism and electrically connect the bottom circuit board to the upper spring piece, and the upper spring piece is electrically connected to the metal piece embedded in the frame.

5. The optical element driving mechanism according to claim 1, wherein The optical element driving mechanism further includes a side sensor and a bottom sensor. A sensor magnet is provided at a position corresponding to the side sensor on the carrier. The side sensor is installed in the electrical component mounting groove and electrically connected to the electrical component connecting portion. Among them, the side sensor cooperates with the sensor magnet to detect the displacement of the carrier along the optical axis direction, and the bottom sensor is installed on the bottom circuit board and cooperates with at least some of the magnets in the magnet group to detect the displacement of the carrier on the plane perpendicular to the optical axis.

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