A special interlocking carrier structure for voice coil motor

Abstract

The present invention discloses a special interlocking carrier structure for a voice coil motor, including: a carrier, a lens, a balancing suspension wire, a fixed metal plate, and a metal part; metal parts are welded at both ends of the carrier, and a buckle groove is provided on one side of the carrier; a convex buckle is provided on one side of the lens; the carrier is buckled on one side of the lens; and the metal part is connected to the fixed metal plate through a plurality of balancing suspension wires. The special interlocking carrier structure can design a larger lens within the limited space of the voice coil motor, thereby increasing the pixel of the entire camera; at the same time, since the balancing suspension wire is welded with the embedded metal part of the carrier, the overall strength of the voice coil motor will be better, and the reliability of the product is improved while ensuring the market competitiveness of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of voice coil motors, and in particular to a special interlocking carrier structure of a closed-loop voice coil motor for automatic focusing of a camera. Background Art

[0002] As a new technology in mobile phone cameras, closed-loop voice coil motors can improve the focusing accuracy and speed of mobile phone lenses to a certain extent, bringing better photo-taking experience and image quality. Compared with traditional voice coil motors, closed-loop voice coil motors have the advantages of fast focusing speed and low power consumption. Traditional closed-loop voice coil motors are made by fixing the circular optical lens in the central circular hole of the voice coil motor carrier wire frame. The carrier serves as the power unit for lens movement, and the voice coil motor carrier wire frame and stator are connected by shrapnel or ball bearings.

[0003] Although this design has become mature in terms of technology, and some voice coil motor suppliers have already achieved mass production, it has the same problem as ordinary voice coil motors. That is, with the continuous improvement of mobile phone technology, the assembly space left for voice coil motors is getting smaller and smaller. Due to the limitations of the internal space of the voice coil motor, the carrier wire frame can only be made into a round hole design. In addition, the actual space occupied by the lens in the overall voice coil motor is very limited, which will limit the pixel of the lens. At the same time, although the suspension wire has been popularized in anti-shake cameras, the current fixing method of the suspension wire and the carrier is not very strong, which has always been a headache for voice coil motor suppliers. Summary of the invention

[0004] In order to solve the problem that the existing lens occupies very limited space in the overall voice coil motor, which will limit the pixel of the lens, and the problem that the current fixing method of the suspension wire and the carrier is not very strong, the purpose of the present invention is to provide a special interlocking carrier structure for a voice coil motor.

[0005] The technical solution adopted to achieve the purpose of the invention is:

[0006] A special interlocking carrier structure for a voice coil motor includes: a carrier, a lens, a balancing suspension wire, a fixed metal plate, and a metal part; metal parts are welded at both ends of the carrier, and a buckle groove is provided on one side of the carrier; a convex buckle is provided on one side of the lens; the carrier is buckled on one side of the lens; and the metal part is connected to the fixed metal plate through multiple balancing suspension wires.

[0007] The beneficial effects of the present invention are:

[0008] 1. The present invention greatly reduces the volume of the carrier, leaving more space for the lens, so that the lens pixel can be greatly improved; at the same time, the balancing wire is used to provide a balancing force for the carrier and the lens, and the balancing wire and the metal parts embedded in the carrier are welded, which greatly increases the bonding force between the balancing wire and the carrier, making the product stronger and more reliable.

[0009] 2. The structure of the present invention has made a new breakthrough on the basis of the original problem. It abandons the traditional surround-type carrier structure design and adopts a more innovative interlocking carrier structure design. On the premise of realizing that the carrier drives the lens to move, it can greatly increase the space utilization rate of the lens in the voice coil motor, effectively improve the pixel of the lens, and improve the photo-taking ability of the voice coil motor of the same specification; at the same time, the carrier adopts a novel metal reinforcement structure. On the premise of enhancing the overall strength of the carrier, a metal inlay welded with the balance wire is added, so that the balance wire and the carrier are fixed more firmly, thereby improving the overall reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an overall schematic diagram of the present invention.

[0011] Figure 2 Schematic diagram of the vector of the present invention.

[0012] Figure 3 This is one of the lens schematic diagrams of the present invention.

[0013] Figure 4 This is the second lens schematic diagram of the present invention.

[0014] Figure 5 It is a schematic diagram of the connection between the balancing suspension wire and the fixed metal plate of the present invention. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and the accompanying drawings.

[0016] A special interlocking carrier structure for a voice coil motor includes: a carrier 3, a lens 2, a balance suspension wire 1, a fixed metal plate 4, and a metal part 5; the metal parts 5 are welded at both ends of the carrier 3, and a buckle groove 6 is provided on one side of the carrier 3;

[0017] A convex buckle 7 is provided on one side of the lens; the carrier 3 is buckled on one side of the lens 2; and the metal part 5 is connected to the fixed metal plate 4 through a plurality of balance suspension wires 1.

[0018] The carrier 3 and the lens 2 are matched in a non-closed manner, and the carrier 3 adopts an integrated structure.

[0019] The lens 2 and the carrier 3 are interlocked and then fixed by gluing.

[0020] One end of the balance wire 1 is welded to the metal part 5, and the other end is connected to the fixed metal plate 4; the carrier 3 and the lens 2 are fixed to the fixed metal plate 4 through the balance wire 1, and an elastic structure is formed as a whole. Example

[0021] The carrier 3 of the present invention is embedded with a metal piece 5 for welding. The metal piece 5 is embedded in the carrier 3 during injection molding, and a welding hole for the balance wire 1 is left in the metal piece 5. In addition to being used for welding and fixing the balance wire 1, the metal piece 5 also increases the overall strength of the carrier 3 due to being embedded in the injection molded part; the lens 2 interlocking with the carrier has two interlocking buckle grooves 6 designed on one side for interlocking with the interlocking buckle grooves 6 on the carrier, and then fixed by glue or other means. One end of the balance wire 1 is first welded to the metal piece 5 embedded on the carrier to fix the balance wire 1 and the metal piece 5 embedded on the carrier; the other side of the balance wire 1 is connected to the fixed metal plate 4. The carrier 3 and the lens 2 are fixed to the fixed metal plate 4 through the balance wire 1, and an elastic system is formed as a whole. The other positions of the lens 2 are suspended or connected with damping glue. The present design adopts a novel metal reinforcement structure on the carrier 3. On the premise of enhancing the overall strength of the carrier 3, a metal part 5 welded to the balance wire 1 is added, so that the balance wire 1 and the carrier 3 are fixed more securely, solving the problems of limited space for the existing voice coil motor and insufficient lens space and the problem of insufficient strength of the single-sided carrier.

[0022] The technical principle of the present invention has been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present invention without creative work, and these methods will fall within the scope of protection of the present invention.

Claims

1. An interlocking carrier structure for a voice coil motor, characterized in that: include: Carrier (3), lens (2), balance wire (1), fixed metal plate (4), metal part (5); Metal parts (5) are welded at both ends of the carrier (3), and a buckle groove (6) is provided on one side of the carrier (3); A convex buckle (7) is provided on one side of the lens; The carrier (3) is buckled onto one side of the lens (2); The metal part (5) is connected to the fixed metal plate (4) via a plurality of balancing suspension wires (1); The carrier (3) and the lens (2) are matched in a non-closed manner, and the carrier (3) adopts an integrated structure; The lens (2) and the carrier (3) are interlocked and then fixed by gluing; A metal piece (5) for welding is embedded inside the carrier (3). The metal piece (5) is embedded inside the carrier (3) when the carrier (3) is injection molded, and a welding hole for the balance wire (1) is left on the metal piece (5); One end of the balance suspension wire (1) is welded to the metal piece (5), and the other end is connected to the fixed metal plate (4); the carrier (3) and the lens (2) are fixed to the fixed metal plate (4) through the balance suspension wire (1), and an elastic structure is formed as a whole.

Images