Periscopic driving device, camera module and electronic equipment

Abstract

The utility model relates to a periscopic driving device, a camera module and an electronic device, comprising a base, a focusing assembly which linearly moves relative to the base in the direction of a first axis, and a prism assembly which is distributed with the focusing assembly at an interval on the first axis and rotates relative to the base, a plurality of first elastic buffer parts used for limiting movement of the focusing assembly and the prism assembly are arranged on the mounting frame, two of the first elastic buffer parts are distributed along the first shaft and form movement limiting of the focusing assembly, and the first elastic buffer part close to one side of the prism assembly is further used for limiting movement of the prism assembly. The utility model has the advantages that by adopting the design of injection molding of the flexible glue on the mounting frame, the defects of unstable fixation of pure flexible glue and tedious processing and maintenance in an injection molding mode are effectively overcome, the buffer device has the advantages of high precision, high strength and convenience in assembly, the buffer performance, the structural strength and the maintenance convenience are remarkably improved, and the production cost is reduced at the same time.

Description

Technical Field

[0001] This utility model belongs to the field of digital photography components, and particularly relates to a periscope driving device, a camera module and an electronic device. Background Technology

[0002] In existing technologies, the buffer components of periscope drive devices are usually fixed to plastic parts by inserting pure soft rubber or direct injection molding. Inserting pure soft rubber is unstable and poses a risk of falling off; while injection molding requires pre-fixing components such as the base in the corresponding positions before molding, making the injection molding process complex.

[0003] Secondly, existing buffering technologies cannot achieve the buffering effect during multi-axis image stabilization of optical components. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems by providing a periscope driving device, camera module, and electronic device that can solve the above-mentioned technical issues.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A periscope drive device includes a base, a focusing assembly that moves linearly relative to the base along a first axis, and a prism assembly that is spaced apart from the focusing assembly along the first axis and rotates relative to the base. A mounting bracket is provided on the base, and a plurality of first elastic buffer portions for limiting the movement of the focusing assembly and the prism assembly are provided on the mounting bracket. Two of the first elastic buffer portions are distributed along the first axis and form a movement limit for the focusing assembly. The first elastic buffer portion closer to the prism assembly is also used to limit the movement of the prism assembly.

[0007] Furthermore, the first elastic buffer portion includes a first focusing buffer portion disposed at a distance from the focusing assembly along the first axis direction, and a second focusing buffer portion disposed at a distance from the focusing assembly along a third axis direction perpendicular to the first axis direction.

[0008] Furthermore, the first elastic buffer portion near the prism assembly also includes a first anti-shake buffer portion spaced apart from the prism assembly along the first axis direction, a second anti-shake buffer portion spaced apart from the prism assembly along a second axis direction perpendicular to the first axis and the third axis, and a third anti-shake buffer portion spaced apart from the prism assembly along the third axis direction.

[0009] Furthermore, the mounting frame includes two mounting sub-frames distributed on both sides of the first axis in the direction of the second axis, and each mounting sub-frame is provided with two of the first elastic buffer portions.

[0010] Furthermore, the first focusing buffer section is provided with a pressure relief hole and / or a pressure relief groove.

[0011] Furthermore, the mounting frame also includes a second mounting sub-frame, on which a second elastic buffer portion is provided. The second elastic buffer portion is located on at least a portion of the prism assembly on the side opposite to the focusing assembly.

[0012] Furthermore, the prism assembly includes an outer motion frame that rotates about the first axis and a prism carrier that rotates about the second axis; the second elastic buffer includes a fourth anti-shake buffer spaced apart from the prism carrier along the first axis and a fifth anti-shake buffer spaced apart from the prism carrier along the third axis.

[0013] Furthermore, the base and the mounting bracket are connected by a fixing structure, which includes a positioning structure and an embedded connection structure. The positioning structure includes a positioning pin and a positioning hole. One of the positioning pin and the positioning hole is fixed to the base, and the other is disposed in the mounting bracket. The embedded connection structure includes an adhesive groove containing adhesive and an embedding part that is at least partially embedded in the adhesive groove and fixedly connected to the adhesive. Either the adhesive groove or the embedding part is disposed in the base, and the other is disposed in the mounting bracket.

[0014] As an application solution, this application also provides a camera module, which includes the periscope driving device.

[0015] As an application solution, this application also provides an electronic device, characterized in that the electronic device includes the aforementioned camera module.

[0016] Compared with existing technologies, the advantages of this application are as follows: the periscope drive device, by adopting the design of injection molding soft rubber for mounting bracket, effectively solves the defects of unstable fixation of pure soft rubber and cumbersome processing and maintenance of injection molding method in the technology. It has the advantages of high precision, high strength and convenient assembly, significantly improving the buffer performance, structural strength and maintenance convenience, while reducing production costs.

[0017] Secondly, it has a buffering effect during multi-axis anti-shake motion to improve the motion reliability of the drive device. Attached Figure Description

[0018] Figure 1 Figure 1 shows the finished assembly of the periscope drive device of this utility model.

[0019] Figure 2 for Figure 1 Enlarged detail view of key components in area A;

[0020] Figure 3Figure 2 shows the finished product of the periscope drive device assembly of this utility model;

[0021] Figure 4 for Figure 3 Enlarged detail view of key components in area B;

[0022] Figure 5 Exploded detail view of the main components of the periscope drive device of this utility model;

[0023] Figure 6 Figure 1 shows the assembly details of the mounting subframe and some components of this utility model;

[0024] Figure 7 Figure 2 shows the assembly details of the mounting subframe and some components of this utility model;

[0025] Figure 8 This is a detailed assembly drawing of the mounting subframe 2 and some components of this utility model;

[0026] Figure 9 This is a schematic diagram illustrating an example of an electronic device in Embodiment 4.

[0027] In the figure, the components are: base 1, focusing assembly 2, prism assembly 3, outer motion frame 30, prism carrier 31, impact boss 310, mounting bracket 4, first elastic buffer 41, first focusing buffer 411, decompression hole 4111, decompression groove 4112, motion stabilizing block 4113, second focusing buffer 412, first image stabilization buffer 413, second image stabilization buffer 414, third image stabilization buffer 415, mounting sub-frame 1 42, mounting sub-frame 2 43, second elastic buffer 44, fourth image stabilization buffer 441, fifth image stabilization buffer 442, positioning pin 50, positioning hole 51, glue groove 52, embedding part 53, first axis X, second axis Y, and incident optical axis Z. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] Example 1

[0033] like Figure 1 As shown, in this embodiment, the periscope driving device includes a base 1 for housing components, a focusing assembly 2 that moves linearly relative to the base 1 along a first axis X, and a prism assembly 3 that is spaced apart from the focusing assembly 2 along the first axis X and rotates relative to the base 1 around multiple axes, as shown. Figure 1 As shown, the focusing assembly 2 and the prism assembly 3 are both located inside the base 1.

[0034] The aforementioned multiple axes specifically include a first axis X and a second axis Y that is perpendicular to the first axis X.

[0035] Specifically, such as Figures 1-4As shown, a mounting bracket 4 is also provided on the base 1. The mounting bracket 4 is provided with a plurality of first elastic buffer portions 41 for limiting the movement of the focusing assembly 2 and the prism assembly 3. At least two first elastic buffer portions 41 are distributed along the first axis X and form a movement limit for the focusing assembly 2. The first elastic buffer portion 41 near the side of the prism assembly 3 is also used to limit the movement of the prism assembly 3 around one of the axes. The remaining first elastic buffer portion 41 is used to limit the movement of the prism assembly 3 around the other axis, providing reliable limit protection for the prism assembly 3 during rotational movement.

[0036] The first elastic buffer part 41 is integrated with the mounting frame 4 by injection molding. One of the advantages is that the first elastic buffer part 41 and the mounting frame 4 are more tightly connected by injection molding, avoiding the loosening or gap problems that may occur in the traditional installation method. In addition, since the first elastic buffer part 41 is integrated with the mounting frame, it can be replaced or repaired as a whole during later maintenance, avoiding the trouble of replacing parts individually in the traditional assembly method.

[0037] Specifically, the distribution of the first elastic buffer 41 along the first axis X not only absorbs overshoot or vibration that may occur during the movement of the focusing assembly 2, but also ensures a smooth stop when the focusing assembly 2 reaches its movement limit, thereby effectively improving focusing accuracy and stability. At the same time, the first elastic buffer 41 near the prism assembly 3 is specifically designed to limit the rotation of the prism assembly 3 around a certain axis (the second axis Y in this embodiment), and can provide flexible damping when the prism assembly 3 reaches its rotation angle limit, preventing mechanical damage or performance degradation caused by excessive rotation.

[0038] Regarding the specific details of the aforementioned first elastic buffer section 41, as follows: Figures 5-6 As shown, the first elastic buffer 41 includes a first focusing buffer 411 spaced apart from the focusing assembly 2 along the first axis X direction, and a second focusing buffer 412 spaced apart from the focusing assembly 2 along the third axis Z direction perpendicular to the first axis X. The first focusing buffer 411 is located on the first and second sides of the focusing assembly 2 along the first axis X. Their distribution positions can be either two diagonally distributed or two linearly distributed at the same height. The optimal distribution position is selected according to the actual working conditions to ensure that the movement range of the focusing assembly 2 is precisely controlled along the first axis X. Furthermore, as... Figure 5 The second focusing buffer 412 shown above is also provided with a plurality of motion stabilizing blocks 4113 for assisting in stabilizing the movement of the focusing assembly 2. The motion stabilizing blocks 4113 are distributed on the first axis X and are spaced as close as possible to the focusing assembly 2 so as to achieve stable movement of the focusing assembly 2 only in the first axis X.

[0039] Furthermore, the first focusing buffer 411, located near the prism assembly 3, is spaced apart from the prism assembly 3 along the first axis X direction to ensure that the prism assembly 3 has reasonable room to move when it performs circumferential rotational motion along the second axis Y.

[0040] In addition, such as Figure 8 As shown, the first elastic buffer 41 near the prism assembly 3 also includes a first anti-shake buffer 413 spaced apart from the prism assembly 3 along the first axis X direction, a second anti-shake buffer 414 spaced apart from the prism assembly 3 along the second axis Y direction perpendicular to the first axis X and the third axis Z, and a third anti-shake buffer 415 spaced apart from the prism assembly 3 along the third axis Z direction.

[0041] like Figure 3 and Figure 7 As shown, the first anti-shake buffer 413, the second anti-shake buffer 414, and the third anti-shake buffer 415 are respectively spaced apart from the prism assembly 3 along the first axis X direction, the second axis Y direction, and the third axis Z direction, to provide flexible buffer support for the prism assembly 3 in multiple directions. Through the combined action of the first anti-shake buffer 413, the second anti-shake buffer 414, and the third anti-shake buffer 415, the prism assembly 3 achieves buffering and limiting during rotational motion around multiple axes, ensuring the stability and motion accuracy of the prism assembly 3 during rotation.

[0042] Specifically, the mounting frame 4 includes two mounting sub-frames 42 distributed on both sides of the first axis X, each mounting sub-frame 42 having two first elastic buffer portions 41. In this embodiment, the first elastic buffer portions 41 are integrally formed with the mounting sub-frames 42 by injection molding, and the two mounting sub-frames 42 are fixed to the side walls on both sides of the first axis X of the base 1. Similarly, the mounting frame 4 also includes a second mounting sub-frame 43, on which a second elastic buffer portion 44 is provided. The second elastic buffer portion 44 is integrally formed with the second mounting sub-frame 43 by injection molding, and the second elastic buffer portion 44 is located on at least a portion of the prism assembly 3 on the side opposite to the focusing assembly 2.

[0043] The second elastic buffer 44 includes a fourth image stabilization buffer 441 spaced apart from the prism carrier 31 along the first axis X direction and a fifth image stabilization buffer 442 spaced apart from the prism carrier 31 along the third axis Z direction. The fourth image stabilization buffer 441, spaced apart from the prism carrier 31 along the first axis X direction, primarily provides buffer support for the prism carrier 31 in the X-axis direction. The fifth image stabilization buffer 442, spaced apart from the prism carrier 31 along the third axis Z direction, primarily provides buffer support for the prism carrier 31 in the Z-axis direction.

[0044] Specifically, the base 1 and the mounting bracket 4 are connected by a fixing structure, which includes a positioning structure and an embedded connection structure. The positioning structure includes a positioning pin 50 and a positioning hole 51. One of the positioning pin 50 and the positioning hole 51 is fixed to the base 1, and the other is located in the mounting bracket 4. In this embodiment, the positioning pin 50 is directly injection molded onto the base 1, and the positioning hole 51 is formed in the mounting bracket 4 by machining. The embedded connection structure includes a glue groove 52 containing glue and an embedded part 53 that is at least partially embedded in the glue groove 52 and fixedly connected with the glue. Either the glue groove 52 or the embedded part 53 is located in the base 1, and the other is located in the mounting bracket 4, which further enhances the connection strength between the base and the mounting bracket and ensures the reliability and durability of the connection.

[0045] To further enhance the buffering effect, the first elastic buffer part 41 is also provided with, for example Figures 5-6 The pressure relief holes 4111 and / or pressure relief grooves 4112 shown can effectively reduce the pressure concentration during the impact when the focusing assembly 2 and / or the prism assembly 3 are impacted, and generate deformation to absorb the impact force, thereby improving the buffering effect.

[0046] Example 2

[0047] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference lies in that, for the periscope driving device of Embodiment 1, this embodiment describes the specific components of the prism assembly.

[0048] The prism assembly 3 includes an outer motion frame 30 that rotates around a first axis X, and a prism carrier 31 that rotates around a second axis Y. A first elastic buffer portion 41 is distributed at intervals with the prism carrier 31 in the first axis X direction. The prism carrier 31 is also provided with an impact boss 310 for impacting the first anti-shake buffer portion 413. There is a certain space between the impact boss 310 and the first anti-shake buffer portion 413. When the prism carrier 31 rotates around the second axis Y, the impact boss 310 will contact the first anti-shake buffer portion 413 at the point of maximum rotation. The second elastic buffer portion 44 is distributed at intervals with the outer motion frame 30 in the incident light axis Z direction. Specifically, in this embodiment, there are two second elastic buffer portions 44, and the two second anti-shake buffer portions 414 are symmetrically distributed about the first axis X. Their function is to limit the maximum angle of clockwise and counterclockwise rotation of the outer motion frame 30 around the first axis X.

[0049] Example 3

[0050] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference is that, for the periscope driving device of Embodiment 1, the camera module of this embodiment includes a periscope driving device.

[0051] A camera module is a precision optical component that uses electronic control to adjust the position or shape of lenses to alter the focusing and imaging of light. These modules are widely used in cameras, laser devices, and other applications, enabling functions such as autofocus, optical zoom, and image stabilization, thereby improving image quality and system performance.

[0052] Example 4

[0053] The structure and principle of this embodiment are basically the same as those of Embodiment 3. The difference lies in that, in relation to the camera module of Embodiment 3, the electronic device in this embodiment includes a camera module.

[0054] like Figure 9 As shown, electronic devices refer to those devices that rely on electronic technology to perform specific functions, such as processing signals, data, or converting energy. They are widely used in fields such as communication, computing, entertainment, and industrial control, including but not limited to smartphones, computers, televisions, audio systems, and medical instruments, which greatly improve the convenience and efficiency of modern life.

[0055] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A periscope drive device, comprising a base (1), a focusing assembly (2) linearly moving relative to the base (1) in a first axis (X) direction, and a prism assembly (3) spaced apart from the focusing assembly (2) on the first axis (X) and rotating relative to the base (1), characterized in that, A mounting bracket (4) is provided on the base (1), and a plurality of first elastic buffer portions (41) for limiting the movement of the focusing assembly (2) and the prism assembly (3) are provided on the mounting bracket (4). Two of the first elastic buffer portions (41) are distributed along the first axis (X) and form a movement limit for the focusing assembly (2). The first elastic buffer portion (41) near the prism assembly (3) is also used to limit the movement of the prism assembly (3).

2. The periscope driving device according to claim 1, characterized in that, The first elastic buffer (41) includes a first focusing buffer (411) spaced apart from the focusing assembly (2) along the first axis (X) direction, and a second focusing buffer (412) spaced apart from the focusing assembly (2) along the third axis (Z) direction perpendicular to the first axis (X).

3. The periscope driving device according to claim 2, characterized in that, The first elastic buffer (41) near the prism assembly (3) further includes a first anti-shake buffer (413) spaced apart from the prism assembly (3) along the first axis (X) direction, a second anti-shake buffer (414) spaced apart from the prism assembly (3) along the second axis (Y) direction perpendicular to the first axis (X) and the third axis (Z), and a third anti-shake buffer (415) spaced apart from the prism assembly (3) along the third axis (Z) direction.

4. The periscope driving device according to claim 3, characterized in that, The mounting bracket (4) includes two mounting sub-frames (42) distributed on both sides of the first axis (X) in the direction of the second axis (Y), and each mounting sub-frame (42) is provided with two first elastic buffer portions (41).

5. The periscope driving device according to claim 3, characterized in that, The first focusing buffer (411) is provided with a pressure relief hole (4111) and / or a pressure relief groove (4112).

6. The periscope driving device according to claim 3, characterized in that, The mounting bracket (4) further includes a second mounting sub-frame (43), on which a second elastic buffer (44) is provided. The second elastic buffer (44) is located on at least a portion of the prism assembly (3) on the side opposite to the focusing assembly (2).

7. The periscope driving device according to claim 6, characterized in that, The prism assembly (3) includes an outer motion frame (30) that rotates about the first axis (X) and a prism carrier (31) that rotates about the second axis (Y); the second elastic buffer (44) includes a fourth anti-shake buffer (441) spaced apart from the prism carrier (31) along the first axis (X) and a fifth anti-shake buffer (442) spaced apart from the prism carrier (31) along the third axis (Z).

8. The periscope driving device according to claim 1, characterized in that, The base (1) and the mounting bracket (4) are connected by a fixing structure, which includes a positioning structure and an embedded connection structure. The positioning structure includes a positioning pin (50) and a positioning hole (51). One of the positioning pin (50) and the positioning hole (51) is fixed to the base (1), and the other is located on the mounting bracket (4). The embedded connection structure includes a glue groove (52) containing glue and an embedded part (53) that is at least partially embedded in the glue groove (52) and fixedly connected to the glue. Either the glue groove (52) or the embedded part (53) is located on the base (1), and the other is located on the mounting bracket (4).

9. A camera module, characterized in that, The camera module includes the periscope driving device as described in any one of claims 1-8.

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

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