Aperture conductive mechanism with external focusing, lens driving device and camera module

Abstract

The utility model relates to an external focusing aperture conductive mechanism, a lens driving device and a camera module, comprising a main circuit, a first-stage conduction circuit, a second-stage conduction circuit, a third-stage conduction circuit, a fourth-stage conduction circuit and a fourth-stage conduction circuit, the first-stage conduction circuit is arranged on a movable frame in the movement direction of the first shaft, and the first-stage conduction circuit is electrically conducted with the main circuit; the second-stage conduction circuit is arranged on the second movable frame in the movement direction of the second shaft, and the second-stage conduction circuit is electrically conducted with the first-stage conduction circuit; and the aperture conduction circuit is arranged on the three-moving frame in the movement direction of the third axis, and the aperture conduction circuit is electrically conducted with the second-stage conduction circuit. The structure has the advantages that through the design of the embedded and sectional conduction circuits, the size and the weight of the structure can be effectively reduced, and the reliability and the stability are greatly improved due to the fact that the conduction circuits are relatively independent.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic camera shooting, and particularly relates to a focusing-external aperture conductive mechanism, a lens driving device and a camera module. BACKGROUND

[0002] At present, OIS with large bases and large pixels are matched with variable apertures; both open-loop and closed-loop variable apertures have the problem of line routing, and at present, line routing is generally divided into split type (variable aperture line routes the line to the module on the shell by increasing a support) and integrated type (variable aperture is placed on the carrier lens to act together). The integrated type variable aperture is currently commonly used in the logic architecture of AF motor built-in and OIS motor external, because the AF built-in itself needs to be routed through a spring base; however, there is currently no feasible solution for the structure of AF external and OIS internal.

[0003] In the patent CN218413018U, an optical actuator, a camera module and an electronic device are disclosed, the optical actuator includes a first mounting seat, a second mounting seat and a third mounting seat, the first mounting seat is used for mounting an optical device, the first mounting seat is configured to move in a shake compensation direction relative to the second mounting seat, the second mounting seat is configured to drive the first mounting seat and move in a focusing direction relative to the third mounting seat, the optical actuator further includes an OIS driving unit and an AF driving unit, the OIS driving unit includes two OIS magnets and an OIS coil located between the two OIS magnets, the two OIS magnets and the OIS coil are arranged along the driving direction thereof, the annular surface of the OIS coil is perpendicular to the driving direction thereof, the magnetic pole directions of the two OIS magnets are opposite, and the magnetization directions thereof are the same as the driving direction thereof. The two OIS magnets jointly act on the OIS coil, thereby improving the driving force of the OIS driving unit.

[0004] In the above-mentioned patent, the conductive circuit and the mounting seat are in split type combination, the conductive circuit is in integrated type connection, the independent structure of the device is unstable and has short service life. Utility model content

[0005] The utility model aims at the above -mentioned problem, provides a kind of focusing external aperture conductive mechanism, lens driving device and camera module that can solve the above-mentioned technical problem

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The focusing external aperture conductive mechanism includes a general circuit, and further includes:

[0008] A primary conductive circuit is arranged on a direction one moving frame moving in a first axis, and the primary conductive circuit is electrically conductive with the general circuit;

[0009] a second-level conduction circuit, which is arranged on a second direction moving frame moving in a second axis direction and is electrically connected with the first-level conduction circuit;

[0010] an aperture conduction circuit, which is arranged on a third direction moving frame moving in a third axis direction and is electrically connected with the second-level conduction circuit.

[0011] Further, the total circuit and the first-level conduction circuit are electrically connected through a first-level electrically conductive spring perpendicular to the first axis.

[0012] Further, the first-level conduction circuit and the second-level conduction circuit are electrically connected through an azimuthal first-level shape variable electrically conductive member distributed along the first axis.

[0013] Further, the second-level conduction circuit and the aperture conduction circuit are electrically connected through an azimuthal second-level shape variable electrically conductive member distributed along the first axis.

[0014] Further, the azimuthal first-level shape variable electrically conductive member and the azimuthal second-level shape variable electrically conductive member are distributed on different sides of the outer periphery of the first direction moving frame.

[0015] Further, the first-level conduction circuit is at least partially embedded in the first direction moving frame; the second-level conduction circuit is at least partially embedded in the second direction moving frame; and the aperture conduction circuit is at least partially embedded in the third direction moving frame.

[0016] Further, the aperture conduction circuit has an aperture connecting terminal exposed to the top surface of the third direction moving frame.

[0017] The application also provides a lens driving device, which comprises a base and a focusing external aperture conduction mechanism, wherein the total circuit of the focusing external aperture conduction mechanism is fixed on the base, a first driving assembly for driving the first direction moving frame to move along the first axis is arranged between the total circuit and one side of the outer periphery of the first direction moving frame, a second driving assembly for driving the second direction moving frame to move along the second axis is arranged between the total circuit and one side of the outer periphery of the second direction moving frame, and a third driving assembly for driving the third direction moving frame to move along the third axis is arranged between the total circuit and one side of the outer periphery of the third direction moving frame.

[0018] Further, the first direction moving frame and the base are axially slidably connected along the first axis, the second direction moving frame and the first direction moving frame are axially slidably connected along the second axis, and the third direction moving frame and the second direction moving frame are axially slidably connected along the third axis.

[0019] The application also provides a camera module comprising the lens driving device.

[0020] Compared with the prior art, the application has the advantages that: through the design of the embedded and segmented conduction circuits, the mechanism can effectively reduce the volume and weight, and greatly improve the reliability and stability due to the relative independence of each conduction circuit. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the assembly drawing of the main body structure of the utility model;

[0022] Figure 2 It is the assembly drawing of the main body structure of the utility model;

[0023] Figure 3 It is the base structure layout drawing of the utility model;

[0024] Figure 4 It is the base structure layout drawing of the utility model;

[0025] Figure 5 It is the direction one moving frame main body structure layout drawing of the utility model;

[0026] Figure 6 It is the direction one moving frame main body structure layout drawing of the utility model;

[0027] Figure 7 It is the direction two moving frame main body structure layout drawing of the utility model;

[0028] Figure 8 It is the direction two moving frame main body structure layout drawing of the utility model;

[0029] Figure 9 It is the direction three moving frame main body structure layout drawing of the utility model;

[0030] Figure 10 It is the direction three moving frame main body structure layout drawing of the utility model;

[0031] Figure 11 It is the appearance layout drawing of the electronic equipment in the third embodiment of the utility model.

[0032] In the drawing, the total circuit 0, the first level conduction spring 01, the direction one moving frame 1, the first level conduction circuit 10, the direction one deformation conduction part 12, the direction two moving frame 2, the second level conduction circuit 20, the direction two deformation conduction part 23, the direction three moving frame 3, the aperture conduction circuit 30, the aperture connection terminal 31, the base 4, the first driving assembly 41, the second driving assembly 42, the third driving assembly 43, the first shaft Z, the second shaft Y, and the third shaft X. DETAILED DESCRIPTION

[0033] The utility model discloses the specific embodiment below and further describes the technical scheme of the utility model in conjunction with the drawings, but the utility model is not limited to these embodiments.

[0034] Embodiment one

[0035] The focusing external diaphragm conductive mechanism includes general circuit 0, and the focusing external diaphragm conductive mechanism further includes:

[0036] The first conduction circuit 10 is arranged on the direction one movable frame 1 moving in the first axis Z direction, and the first conduction circuit 10 is electrically conducted with the general circuit 0.

[0037] The second conduction circuit 20 is arranged on the direction two movable frame 2 moving in the second axis Y direction, and the second conduction circuit 20 is electrically conducted with the first conduction circuit 10.

[0038] The diaphragm conduction circuit 30 is arranged on the direction three movable frame 3 moving in the third axis X direction, and the diaphragm conduction circuit 30 is electrically conducted with the second conduction circuit 20.

[0039] The general circuit 0 and the first conduction circuit 10 are electrically conducted through the first axis Z direction perpendicular first conduction spring 01.

[0040] The diaphragm conduction circuit 30, the second conduction circuit 20 and the first conduction circuit 10 are respectively in the third axis X direction upper and lower opposite relationship, and the three conduction circuits are all embedded in the movable frame interior.

[0041] The first conduction circuit 10 and the second conduction circuit 20 are electrically conducted through the direction one shape change conductive piece 12 along the first axis Z distribution.

[0042] The direction one shape change conductive piece 12 is elastic spring, and the direction one shape change conductive piece 12 is deformed in the second axis direction and will not be separated from the conduction point.

[0043] The second conduction circuit 20 and the diaphragm conduction circuit 30 are electrically conducted through the direction two shape change conductive piece 23 along the first axis Z distribution.

[0044] The direction two shape change conductive piece 23 is elastic spring, and the direction two shape change conductive piece 23 is deformed in the third axis direction and will not be separated from the conduction point.

[0045] The direction one shape change conductive piece 12 and the direction two shape change conductive piece 23 are distributed in the different side of the direction one movable frame 1 periphery, and in the embodiment, one end of the direction one shape change conductive piece 12 is connected on the side wall parallel to the first axis Z and the third axis X plane of the direction one movable frame 1, and the other end is connected on the side wall parallel to the first axis Z and the third axis X plane of the direction two movable frame 2.

[0046] The advantage of this design is that the azimuth one deformation conductive part 12 and the azimuth two deformation conductive part 23 can deform slightly when the moving frame moves, preventing the circuit from being disconnected, and reducing the reaction force of the azimuth one deformation conductive part 12 and the azimuth two deformation conductive part 23 on the moving frame, thereby reducing the normal anti-shake movement of the moving frame.

[0047] The primary conduction circuit 10 is at least partially embedded in the direction one moving frame 1, and at least partially exposed at two different positions of the direction one moving frame 1. The secondary conduction circuit 20 is at least partially embedded in the direction two moving frame 2, and at least partially exposed at two different positions of the direction two moving frame 2. The aperture conduction circuit 30 is at least partially embedded in the direction three moving frame 3, and at least partially exposed at two different positions of the direction three moving frame 3.

[0048] Through the embedded mode, the mechanism can effectively reduce the volume and weight, greatly simplify the design and production process, simplify the number of parts and processing technology, and reduce the production cost. Since the embedded parts are relatively independent, the failure of one embedded part will not affect the entire mechanism, thereby improving the reliability and stability. The primary conduction circuit 10, the secondary conduction circuit 20, and the aperture conduction circuit 30 can be conductive metal.

[0049] The primary conduction circuit 10, the secondary conduction circuit 20, and the aperture conduction circuit 30 each have exposed terminals for welding electrical connection of the primary conductive spring 01, the azimuth one deformation conductive part 12, and the azimuth two deformation conductive part 23. One end of the exposed terminal of the primary conduction circuit 10 is exposed on the top surface of the direction one moving frame 1 in the Z-axis direction, and the other end of the exposed terminal is exposed on the side wall of the direction one moving frame 1 in the Y-axis direction. One end of the exposed terminal of the secondary conduction circuit 20 is exposed on the side wall of the direction two moving frame 2 in the X-axis direction, and the other end of the exposed terminal is exposed on the side wall of the direction two moving frame 2 in the Y-axis direction. One end of the exposed terminal of the aperture conduction circuit 30 is exposed on the side wall of the direction three moving frame 3 in the X-axis direction, and the other end of the exposed terminal is exposed on the top wall of the direction three moving frame 3 in the Z-axis direction.

[0050] The aperture conduction circuit 30 has an aperture connection terminal 31 exposed on the top surface of the direction three moving frame 3.

[0051] The aperture connection terminal 31 is used to control and power the aperture mechanism placed on the lens driving device, so that the aperture mechanism can change the size of the aperture.

[0052] Embodiment Two

[0053] The structure and principle of the embodiment are basically the same as those of embodiment one, and the difference lies in that, for the focusing external aperture conductive mechanism of the above-mentioned embodiment one, the lens driving device of the embodiment comprises a base 4 and a focusing external aperture conductive mechanism.

[0054] The total circuit 0 of the focusing external aperture conductive mechanism is fixed on the base 4, a first driving assembly 41 for driving the direction one moving frame 1 to move along the first axis Z is arranged between the base 4 and the outer circumferential side of the direction one moving frame 1, a second driving assembly 42 for driving the direction two moving frame 2 to move along the second axis Y is arranged between the base 4 and the outer circumferential side of the direction two moving frame 2, and a third driving assembly 43 for driving the direction three moving frame 3 to move along the third axis X is arranged between the base 4 and the outer circumferential side of the direction three moving frame 3.

[0055] The direction one moving frame 1 and the base 4 are in axial sliding connection along the first axis Z, the direction two moving frame 2 is in axial sliding connection with the direction one moving frame 1 along the second axis Y, and the direction three moving frame 3 is in axial sliding connection with the direction two moving frame 2 along the third axis X.

[0056] The first driving assembly 41, the second driving assembly 42 and the third driving assembly 43 can all be electromagnetic driving mechanisms, comprising a magnet and a coil arranged oppositely, and in the embodiment, at least three groups of coils are arranged on the base 4, one group of coils and the magnet arranged on the side wall of the direction one moving frame 1 parallel to the XZ axial plane are arranged in a manner that the magnet and the coil are arranged oppositely, and the other two groups of coils are arranged in a manner that the magnet and the coil are arranged oppositely.

[0057] Embodiment three

[0058] The camera module comprises the lens driving device of embodiment two.

[0059] The camera module is used in electronic equipment, including 3C products, such as computers, mobile smart phones and digital cameras. In the embodiment, the module is used as a camera imaging component of a mobile smart phone.

[0060] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A focusing external aperture conductive mechanism, comprising a total circuit (0), characterized in that, The focusing external aperture conductive mechanism further comprises: A first conduction circuit (10) is arranged on a first moving frame (1) moving in a first axis (Z) and is electrically connected with the general circuit (0); A second conduction circuit (20) is arranged on a second moving frame (2) moving in a second axis (Y) and is electrically connected with the first conduction circuit (10); An aperture conduction circuit (30) is arranged on a third moving frame (3) moving in a third axis (X) and is electrically connected with the second conduction circuit (20).

2. The focus external aperture conductive mechanism of claim 1, wherein, The general circuit (0) and the first conduction circuit (10) are electrically connected through a first conductive spring (01) perpendicular to the first axis (Z).

3. The focus external aperture conductive mechanism of claim 1, wherein, The first conduction circuit (10) and the second conduction circuit (20) are electrically connected through an azimuthal first deformation conductive member (12) distributed along the first axis (Z).

4. The focus external aperture conductive mechanism according to claim 3, wherein, The second conduction circuit (20) and the aperture conduction circuit (30) are electrically connected through an azimuthal second deformation conductive member (23) distributed along the first axis (Z).

5. The focus external aperture conductive mechanism of claim 4, wherein, The azimuthal first deformation conductive member (12) and the azimuthal second deformation conductive member (23) are distributed on different sides of the periphery of the first moving frame (1).

6. The focus external aperture conductive mechanism of claim 2, wherein, The first conduction circuit (10) is at least partially embedded in the first moving frame (1) and at least partially exposed to the first moving frame (1) at two different positions; the second conduction circuit (20) is at least partially embedded in the second moving frame (2) and at least partially exposed to the second moving frame (2) at two different positions; and the aperture conduction circuit (30) is at least partially embedded in the third moving frame (3) and at least partially exposed to the third moving frame (3) at two different positions.

7. The focus external aperture conductive mechanism of claim 6, wherein, The aperture conduction circuit (30) has an aperture connection terminal (31) exposed to the top surface of the third moving frame (3).

8. Lens driving device comprising a base (4), characterized in that The lens driving device further comprises the focusing external aperture conductive mechanism according to any one of claims 1-7, the general circuit (0) of the focusing external aperture conductive mechanism is fixed on the base (4), a first driving assembly (41) for driving the first moving frame (1) to move along the first axis (Z) is arranged between the base (4) and one side of the periphery of the first moving frame (1), a second driving assembly (42) for driving the second moving frame (2) to move along the second axis (Y) is arranged between the base (4) and one side of the periphery of the second moving frame (2), and a third driving assembly (43) for driving the third moving frame (3) to move along the third axis (X) is arranged between the base (4) and one side of the periphery of the third moving frame (3).

9. The lens driving apparatus according to claim 8, wherein The direction one moving frame (1) and the base (4) are in axial sliding connection along the first axis (Z), the direction two moving frame (2) is in axial sliding connection with the direction one moving frame (1) along the second axis (Y), and the direction three moving frame (3) is in axial sliding connection with the direction two moving frame (2) along the third axis (X).

10. An image capture module, characterized by, The camera module comprises the lens driving device according to any one of claims 8-9.

Images