A driving device for realizing optical image stabilization of camera

Abstract

The invention discloses a driving device for realizing optical image stabilization of a camera, comprising a substrate, a circuit board, a movable plate, a lens module, a first fixed plate, a second fixed plate, a connecting rod, a memory metal wire, a connecting block and an edge block. The circuit board is fixed to the upper surface of the substrate, the movable plate is provided on the upper surface of the circuit board, the lens module is fixed to the upper surface of the movable plate, the first fixed plate is fixed to the four corners of the upper surface of the lens module, the connecting rod is fixed to one end of the first fixed plate, the second fixed plate is fixed to the end of the connecting rod away from the first fixed plate, and the second fixed plate is fixedly connected to the four corners of the upper surface of the substrate, the side edges of the circuit board are provided with memory metal wires, and the connecting blocks are fixed to the four corners of the movable plate. The driving device for realizing optical image stabilization of the camera has a simple structure and low cost, reduces friction of the lens module, improves motion sensitivity, and is convenient for people to use.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone camera anti-shake, and in particular to a driving device for realizing optical anti-shake of a camera. Background Art

[0002] The digital camera function of a mobile phone refers to whether the mobile phone can take still pictures or short videos through a built-in or external digital camera. As a new additional function of mobile phones, the digital camera function of mobile phones has been rapidly developed. When shooting, the existing mobile phone lens will cause slight shaking of people's hands, which will cause the shooting picture to shake. The solution to this problem is to correct the "optical axis offset" through the floating lens of the lens. The principle is to detect tiny movements through the gyroscope in the lens, and then transmit the signal to the microprocessor. The processor immediately calculates the displacement that needs to be compensated, and then compensates it according to the shaking direction and displacement of the lens through the compensation lens group; thereby effectively overcoming the image blur caused by the vibration of the camera. However, when the existing method is used, the lens module rubs against the substrate, resulting in an insensitive anti-shake effect and a complex structure. To this end, we propose a driving device for realizing optical anti-shake of the camera. Summary of the invention

[0003] The object of the present invention is to provide a driving device for realizing optical image stabilization of a camera, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a driving device for realizing optical image stabilization of a camera, comprising a substrate, a circuit board, a movable plate, a lens module, a first fixed plate, a second fixed plate, a connecting rod, a memory metal wire, a connecting block and an edge block, a circuit board is fixed to the upper surface of the substrate, a movable plate is provided on the upper surface of the circuit board, a lens module is fixed on the upper surface of the movable plate, the first fixed plate is fixed to the four corners of the upper surface of the lens module, a connecting rod is fixed to one end of the first fixed plate, a second fixed plate is fixed to the end of the connecting rod away from the first fixed plate, and the second fixed plate is fixedly connected to the four corners of the upper surface of the substrate, memory metal wires are provided on the sides of the circuit board, connecting blocks are fixed to the four corners of the movable plate, and the memory metal wires are fixedly connected to the connecting blocks, edge blocks are fixed to the four corners of the circuit board, and one ends of the four memory metal wires are respectively fixedly connected to the four edge blocks on the circuit board.

[0005] Preferably, the connecting rod is formed by bending twice.

[0006] Preferably, the first fixing plate, the second fixing plate and the connecting rod are integrally stamped or etched.

[0007] Preferably, the first fixing plate, the second fixing plate and the connecting rod are all made of an elastic material.

[0008] Preferably, a connection hole is opened at one end of the substrate, a pin is fixed at one end of the circuit board, and the pin passes through the connection hole.

[0009] Preferably, the movable plate is located above the circuit board, and the movable plate does not contact the circuit board.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. When the present invention is in use, the first fixed plate, the second fixed plate and the connecting rod are integrally stamped into an integral elastic arm, and the connecting rod is bent twice by 90 degrees, so that the first fixed plate and the second fixed plate form an upper and lower layer, so that the first fixed plate is fixed on the lens module, and the second fixed plate is fixed on the substrate, so that the lens module is supported on the substrate and does not contact the substrate, and the connecting rod is made of elastic material, so that the lens module can shake along the X-axis and the Y-axis, and one end of the memory metal wire is fixed to the edge block on the circuit board, and the other end is fixed to the connecting block on the movable plate, so that when the memory metal wire shrinks due to heat, the memory metal wire pulls the movable plate to move, and then can drive the lens module to move, thereby realizing the anti-shake function of the lens module. This device has a simple structure and low cost, and reduces the friction of the lens module, improves the motion sensitivity, and is convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the structure of the movable plate of the present invention;

[0014] Figure 3 This is a schematic diagram of the circuit board structure of the present invention;

[0015] Figure 4 It is a schematic diagram of the connecting rod structure of the present invention.

[0016] In the figure: 1, substrate; 2, circuit board; 3, movable plate; 4, lens module; 5, first fixed plate; 6, second fixed plate; 7, connecting rod; 8, memory metal wire; 9, connecting block; 10, pin; 11, side block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-4The present invention provides a technical solution: a driving device for realizing optical image stabilization of a camera, comprising a substrate 1, a circuit board 2, a movable plate 3, a lens module 4, a first fixed plate 5, a second fixed plate 6, a connecting rod 7, a memory metal wire 8, a connecting block 9 and an edge block 11, wherein the circuit board 2 is fixed on the upper surface of the substrate 1, the movable plate 3 is provided on the upper surface of the circuit board 2, the lens module 4 is fixed on the upper surface of the movable plate 3, the first fixed plate 5 is fixed at the four corners of the upper surface of the lens module 4, the first fixed plate 5 is fixed at one end of the first fixed plate 5, the second fixed plate 6 is fixed at one end of the connecting rod 7 away from the first fixed plate 5, and the second fixed plate 6 is fixedly connected to the four corners of the upper surface of the substrate 1, the side of the circuit board 2 is provided with memory metal wires 8, the four corners of the movable plate 3 are fixed with connecting blocks 9, and the memory metal wires 8 are fixedly connected to the connecting blocks 9, the four corners of the circuit board 2 are fixed with edge blocks 11, and one end of the four memory metal wires 8 is respectively fixedly connected to the four edge blocks 11 on the circuit board 2.

[0019] When in use, the first fixing plate 5, the second fixing plate 6 and the connecting rod 7 are integrally stamped into an integral elastic arm, and the connecting rod 7 is bent twice by 90°, so that the first fixing plate 5 and the second fixing plate 6 form two layers, so that the first fixing plate 5 is fixed on the lens module 4, and the second fixing plate 6 is fixed on the substrate 1, so that the lens module 4 is supported on the substrate 1 and does not contact the substrate 1, and the connecting rod 7 is made of elastic material, so that the lens module 4 can swing along the X-axis and the Y-axis, and one end of the memory metal wire 8 is fixed to the circuit board 2, and the other end is fixed to the connecting block 9 on the movable plate 3, so that when the memory metal wire 8 shrinks due to heat, the memory metal wire 8 pulls the movable plate 3 to move, and then drives the lens module 4 to move, thereby realizing the anti-shake function of the lens module 4.

[0020] The connecting rod 7 is formed by bending twice, so as to facilitate separating the first fixing plate 5 and the second fixing plate 6 from the same plane.

[0021] The first fixing plate 5, the second fixing plate 6 and the connecting rod 7 are integrally stamped or etched, which improves the strength of the first fixing plate 5, the second fixing plate 6 and the connecting rod 7 and facilitates production.

[0022] The first fixing plate 5 , the second fixing plate 6 and the connecting rod 7 are all made of an elastic material to facilitate the movement of the lens module 4 .

[0023] A connection hole is provided at one end of the substrate 1, a pin 10 is fixed at one end of the circuit board 2, and the pin 10 passes through the connection hole, so as to facilitate the electrical connection between the circuit board 2 and the mainboard of the mobile phone.

[0024] The movable plate 3 is located above the circuit board 2 and does not contact the circuit board 2 . The movable plate 3 suspends the lens module 4 through the connecting rod 7 , so that the movable plate 3 is suspended on the circuit board 2 , reducing the friction resistance between the movable plate 3 and the circuit board 2 .

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A driving device for realizing optical image stabilization of a camera, comprising a substrate (1), a circuit board (2), a movable plate (3), a lens module (4), a first fixed plate (5), a second fixed plate (6), a connecting rod (7), a memory metal wire (8), a connecting block (9) and a side block (11), characterized in that: A circuit board (2) is fixed on the upper surface of the substrate (1), a movable plate (3) is provided on the upper surface of the circuit board (2), a lens module (4) is fixed on the upper surface of the movable plate (3), a first fixed plate (5) is fixed at the four corners of the upper surface of the lens module (4), a connecting rod (7) is fixed at one end of the first fixed plate (5), a second fixed plate (6) is fixed at the end of the connecting rod (7) away from the first fixed plate (5), and the second fixed plate (6) is fixedly connected to the four corners of the upper surface of the substrate (1), memory metal wires (8) are provided on the sides of the circuit board (2), connecting blocks (9) are fixed at the four corners of the movable plate (3), and the memory metal wires (8) are fixedly connected to the connecting blocks (9), side blocks (11) are fixed at the four corners of the circuit board (2), and one end of the four memory metal wires (8) is respectively fixedly connected to the four side blocks (11) on the circuit board (2), wherein The first fixing plate (5), the second fixing plate (6) and the connecting rod (7) are all made of an elastic material, and the connecting rod (7) is formed by bending twice.

2. A driving device for realizing optical image stabilization of a camera according to claim 1, characterized in that: The first fixing plate (5), the second fixing plate (6) and the connecting rod (7) are integrally formed by stamping or etching.

3. The driving device for realizing optical image stabilization of a camera according to claim 1, characterized in that: A connection hole is provided at one end of the substrate (1), a pin (10) is fixed at one end of the circuit board (2), and the pin (10) passes through the connection hole.

4. The driving device for realizing optical image stabilization of a camera according to claim 1, characterized in that: The movable plate (3) is located above the circuit board (2), and the movable plate (3) does not contact the circuit board (2).

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