Lens driving suspension wire, lens driving device, camera module and electronic equipment

Abstract

The utility model relates to a suspension wire for driving a lens, a lens driving device, a camera module and electronic equipment, the suspension wire for driving the lens comprises at least two single wires, and at least one of the single wires is stranded with the remaining single wires to obtain a stranded suspension wire. The stranded suspension wire has the advantages that compared with a single wire, the stranded suspension wire has higher tensile strength and torsion resistance, the risk of fracture or deformation of the suspension wire due to overlarge stress can be reduced, the stranded suspension wire has higher stability and integrity, shaking or dislocation of the suspension wire in the operation process can be effectively reduced, and the service life of the suspension wire is prolonged. Therefore, the stability and accuracy of lens driving are ensured.

Description

Technical Field

[0001] The present application belongs to the field of camera optical electronic equipment, and in particular to a lens driving suspension wire, a lens driving device, a camera module and electronic equipment. Background Art

[0002] Patent CN112859480B discloses a structure, method and camera for connecting an upper spring sheet and a suspension wire. It solves the defects of low efficiency of the existing upper spring sheet and suspension wire connection. The upper spring sheet and suspension wire connection structure includes an upper spring sheet, and a plurality of suspension fixed elastic parts are connected to the circumference of the upper spring sheet, and the number of suspension wires equal to the number of suspension fixed elastic parts, and one suspension fixed elastic part corresponds to one suspension wire, and a suspension wire opening is provided at the suspended side corner of each suspension fixed elastic part, and one axial end of the suspension wire enters the suspension wire opening from the opening of the suspension wire opening, and one axial end of the suspension wire is axially fixedly connected to the suspension wire opening. Advantages of the present invention: By utilizing the structure of the suspension wire opening, it can facilitate the swing of the automated machinery, so that the suspension wire is mechanically clamped and fed into the suspension wire opening, and at the same time, the design of the suspension wire opening can ensure that there is enough large insertion space to ensure that the suspension wire is inserted in place, thereby improving production efficiency.

[0003] In the above patents and prior art, multiple single suspension wires are used in the lens driving device to connect the base and the moving frame. During use, the single suspension wire is continuously heated, and the temperature is high, resulting in fatigue fracture of the suspension wire. Utility Model Content

[0004] The purpose of the utility model is to provide a lens driving suspension wire, a lens driving device, a camera module and an electronic device that can solve the above technical problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lens driving suspension wire comprises at least two single wires, and at least one of the single wires is twisted with the remaining single wires to obtain a twisted suspension wire.

[0007] Furthermore, all the single wires are twisted to obtain twisted suspension wires.

[0008] Furthermore, all the single wires are twisted in the same direction.

[0009] Furthermore, at least one of the single wires is a conductive wire.

[0010] Furthermore, the outer jacket of the twisted suspension wire is provided with a flexible insulating sheath.

[0011] Furthermore, the number of the single wires is 2-5.

[0012] Furthermore, one ends of all the single wires are flush with each other, and the other ends of all the single wires are flush with each other.

[0013] The present application also provides a lens driving device, comprising a base and a moving frame, wherein the base and the moving frame are connected via at least three lens driving suspension wires.

[0014] The present application also provides a camera module, which includes the lens driving device.

[0015] The present application also provides an electronic device, which includes the camera module.

[0016] Compared with the existing technology, the advantages of the present application are: the twisted suspension wire has higher tensile strength and torsional resistance than the single wire, which can reduce the risk of breakage or deformation of the suspension wire due to excessive force. The twisted suspension wire has stronger stability and integrity, which can effectively reduce the shaking or misalignment of the suspension wire during operation, thereby ensuring the stability and accuracy of the lens drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a main structure diagram of a double-wire twisted suspension wire for lens driving of the utility model;

[0018] Figure 2 for Figure 1 A magnified view of the details of the components in area A;

[0019] Figure 3 for Figure 1 Assembly diagram of medium-stranded suspension wire and flexible insulating sheath;

[0020] Figure 4 This is a main structure diagram of a three-wire twisted suspension wire for lens driving of the utility model;

[0021] Figure 5 for Figure 4 A magnified view of the details of the components in the middle B area;

[0022] Figure 6 This is a main structural diagram of the double-wire twisted suspension wire in the second embodiment;

[0023] Figure 7 for Figure 6 A magnified view of the details of the components in the middle C area;

[0024] Figure 8 This is a general diagram of the main structure of the lens driving device of the utility model;

[0025] Fig. 9 for Figure 8 A front view of the middle lens driving device;

[0026] Fig.10 This is a schematic diagram of an electronic device in Embodiment 5.

[0027] In the figure, there are a twisted suspension wire 1, a single wire 10, a flexible insulating sheath 11, a base 2, and a moving frame 3. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] Embodiment 1

[0030] like Figure 1-Figure 3 As shown, the lens driving suspension wire comprises at least two single wires 10 , and at least one of the single wires 10 is twisted with the remaining single wires 10 to obtain a twisted suspension wire 1 .

[0031] Compared with the single wire 10, the twisted suspension wire 1 has higher tensile strength and torsion resistance, which can reduce the risk of breakage or deformation of the suspension wire due to excessive force. The twisted suspension wire 1 has stronger stability and integrity, which can effectively reduce the shaking or misalignment of the suspension wire during operation, thereby ensuring the stability and accuracy of the lens drive.

[0032] All the single wires 10 are twisted to obtain a twisted suspension wire 1.

[0033] When all the single wires 10 are twisted together, the force on the suspension wire is more uniform, which can prevent a single wire 10 from being damaged or deformed due to excessive force. At the same time, only all the single wires 10 need to be twisted without other complicated processing steps, which can simplify the manufacturing process, reduce production costs, and improve production efficiency. The twisted suspension wire 1 has higher strength and durability, reduces the frequency of repair or replacement of the suspension wire due to damage, and reduces maintenance costs and repair costs.

[0034] All the single wires 10 are twisted in the same direction.

[0035] The same spiral twisting direction of the single wires 10 can reduce the torsion phenomenon during the use of the suspension wire, thereby reducing the stress on the twisted suspension wire 1, extending the service life of the twisted suspension wire 1, and improving the stability and accuracy of the lens driving system.

[0036] At least one of the single wires 10 is a conductive wire.

[0037] One or more conductive wires can realize the transmission function of electrical signals or power. In the lens driving device, electrical control or data transmission is required, and the conductive wires can play the role of connecting circuits or transmitting signals.

[0038] The twisted suspension wire 1 is provided with a flexible insulating sheath 11 on its outer cover.

[0039] The flexible insulating sheath 11 can effectively prevent the external environment from corroding and damaging the suspension wire, and can improve the wear resistance of the stranded suspension wire 1 and extend its service life.

[0040] like Figure 4-Figure 5 As shown, the number of single wires 10 is 2-5.

[0041] According to the actual practical scenario and usage intensity, the twisted suspension wire 1 can be composed of 2-5 single wires 10. In the present embodiment, a twisted suspension wire 1 composed of two single wires 10 is provided. At the same time, the twisted suspension wire 1 in the present embodiment is in the form of two single wires 10 entangled with each other.

[0042] One ends of all the single wires 10 are flush with each other, and the other ends of all the single wires 10 are flush with each other.

[0043] One end of the single wire 10 is flush with the other end, which makes installation and connection easier. It can be directly connected to the bracket without additional trimming of the wire end, saving installation and maintenance time and cost.

[0044] Embodiment 2

[0045] The structure and principle of this embodiment are basically the same as those of the first embodiment, and the difference lies in that, with respect to the twisted suspension wire of the first embodiment, this embodiment describes and exemplifies a new winding method of the twisted suspension wire.

[0046] like Figure 6-Figure 7 As shown, in this embodiment, a twisted suspension wire 1 composed of two single wires 10 is provided. At the same time, the two single wires 10 of the twisted suspension wire 1 in this embodiment, one is a main single wire 10, and the other is an auxiliary single wire 10. The auxiliary single wire 10 is wound around the main single wire 10, and the main single wire 10 is not bent or wound.

[0047] The main single wire, as the main load-bearing wire, is not bent or entangled, so it maintains its original strength and stability, providing stronger mechanical support and protection. At the same time, the auxiliary single wire is wrapped around the main single wire, which can further strengthen and protect the overall structure and improve the durability and stability of the cable.

[0048] Embodiment 3

[0049] The structure and principle of this embodiment are basically the same as those of the first embodiment, and the difference lies in that, in contrast to the lens driving suspension wire of the first embodiment, the lens driving device of this embodiment includes a lens driving suspension wire.

[0050] like Figure 8-Figure 9 As shown, the lens driving device also includes a base 2 and a moving frame 3, and the base 2 and the moving frame 3 are connected by at least three lens driving suspension wires.

[0051] Using at least three lens driving suspension wires for connection can provide more stable support and balance, ensuring that the structure between the base 2 and the moving frame 3 remains stable and balanced. By connecting at least three lens driving suspension wires, the load between the base 2 and the moving frame 3 can be evenly distributed to each suspension wire, avoiding the situation where a single suspension wire cannot bear the excessive load.

[0052] The motion frame 3 is connected to a driving assembly, and the driving assembly is any one of an electromagnetic driving assembly and an SMA driving assembly.

[0053] Embodiment 4

[0054] The structure and principle of this embodiment are basically the same as those of the first embodiment, and the different structure is that, with respect to the lens driving device of the third embodiment, the camera module of this embodiment includes a lens driving device.

[0055] The camera module includes a lens drive device. The camera module refers to a modular component that integrates a camera, lens, sensor and other related components. The camera module usually includes image sensors, image processors, lenses, optical filters, focus adjusters, autofocus modules and other components, and can be directly used in various devices and applications, such as smartphones, tablets, surveillance cameras, car cameras, etc.

[0056] Embodiment 5

[0057] The structure and principle of this embodiment are basically the same as those of the first embodiment, and the different structure is that, with respect to the camera module of the fourth embodiment, the electronic device of this embodiment includes a camera module.

[0058] like Fig.10 As shown, the electronic equipment in this embodiment includes 3C products, such as computers, mobile smart phones and digital cameras. In this embodiment, the device is used as a periscope camera imaging component of a mobile smart phone.

[0059] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A suspension wire for lens driving, characterized in that: The lens driving suspension wire comprises at least two single wires (10), and at least one of the single wires (10) is twisted with the remaining single wires (10) to obtain a twisted suspension wire (1).

2. The lens driving suspension wire according to claim 1, characterized in that: All the single wires (10) are twisted to obtain the twisted suspension wire (1).

3. The lens driving suspension wire according to claim 2, characterized in that: All the single wires (10) are spirally twisted in the same direction.

4. The lens driving suspension wire according to claim 1, wherein: At least one of the single wires (10) is a conductive wire.

5. The lens driving suspension wire according to claim 1, characterized in that: The twisted suspension wire (1) is provided with a flexible insulating sheath (11) on its outer shell.

6. The lens driving suspension wire according to claim 1, wherein: The number of the single wires (10) is 2-5.

7. The lens driving suspension wire according to claim 1, wherein: One ends of all the single wires (10) are flush with each other, and the other ends of all the single wires (10) are flush with each other.

8. A lens driving device, comprising a base (2) and a moving frame (3), characterized in that: The base (2) and the moving frame (3) are connected via at least three lens driving suspension wires according to any one of claims 1 to 7.

9. A camera module, characterized in that: The camera module includes the lens driving device described in claim 8.

10. An electronic device, characterized in that The electronic device includes the camera module described in claim 9.

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