Camera module and electronic equipment

Abstract

The camera module comprises a lens assembly, an image sensor, a circuit board and a support assembly, the support assembly comprises a main frame and a connecting frame, the circuit board is fixed at the bottom of the main frame, the connecting frame comprises a plurality of frame edges and bending parts formed at the outer side edges of the frame edges, and the bending parts are fixed at the bottom of the main frame. The bending part and the frame edge are not positioned on the same plane; the connecting frame is arranged in the main frame in a sleeving manner, and the bending part is embedded into the main frame; the camera module further comprises lens assembly attaching glue used for bonding the connecting frame and the lens assembly. The connecting frame with the bending part is arranged in the main frame, and the bending part is embedded into the main frame to form a mechanical interlocking structure, so that the anti-shearing strength of the bracket assembly is remarkably improved, and the problem that a traditional bracket is separated from the lens assembly under mechanical impact is solved; and through the integrated molding process of the connecting frame and the main frame, the contradiction between the structural strength and the volume limitation is solved, and the reliability and the market competitiveness of the product are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of camera technology, and in particular to a camera module and electronic device. Background Technology

[0002] As smartphone camera modules evolve towards high-pixel, multi-camera setups, their structural reliability and environmental durability face severe challenges. Current mainstream designs commonly use acrylic adhesive (AA glue) to bond the lens assembly and the bracket. However, in high-temperature and high-humidity environments, the bonding interface between the adhesive and the bracket is prone to weakening due to material absorption and expansion or thermal stress, leading to adhesive peeling or surface delamination. Furthermore, traditional brackets are often made of a single plastic structure, lacking sufficient mechanical strength. During mechanical impact testing, bracket breakage or image sensor displacement can easily occur, severely impacting the reliability of the camera module. Utility Model Content

[0003] The purpose of this utility model is to provide a camera module and electronic device. By setting a connecting frame with a bending part in the main frame, and using the bending part to embed into the main frame to form a mechanical interlocking structure, the shear strength of the bracket assembly is significantly improved, solving the problem of traditional brackets separating from the lens assembly under mechanical impact. By laser engraving the upper surface of the connecting frame to form a micro-rough structure, and by using the integrated molding process of the connecting frame and the main frame, the contradiction between structural strength and volume limitation is solved, significantly improving the reliability and market competitiveness of the product.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] This utility model provides a camera module, including a lens assembly for acquiring optical signals, an image sensor for converting optical signals into image signals, a circuit board for carrying the image sensor, and a bracket assembly for supporting the lens assembly and fixing the circuit board. The bracket assembly includes a main frame and a connecting frame. The circuit board is fixed to the bottom of the main frame. The connecting frame includes multiple frame edges and a bent portion formed on the outer edge of the frame edges. The bent portion and the frame edge are not on the same plane. The connecting frame is sleeved in the main frame, and the bent portion is embedded in the interior of the main frame. The camera module also includes a lens assembly adhesive for bonding the connecting frame and the lens assembly.

[0006] Specifically, in this embodiment, the surface of the main frame is provided with a mounting groove corresponding to the connecting frame, and the connecting frame is installed in the mounting groove.

[0007] Specifically, in this embodiment, the outer surface of the frame edge is provided with a joint portion formed by roughening treatment to enhance the bonding force between the frame edge and the main frame.

[0008] Specifically, in this embodiment, the frame edge is a straight strip-shaped flat plate, and the bent portion is formed by bending all or part of the outer edge of the frame edge in a direction perpendicular to the plane where the frame edge is located and then extending it.

[0009] Specifically, in this embodiment, the bends formed by the outer edges of the multiple frame edges all extend toward the same side of the frame edges, thereby forming a discontinuous embedded frame.

[0010] Specifically, in this embodiment, the lens assembly adhesive is bonded to the transition area between the connecting frame and the lens assembly, and the surface of the connecting frame relative to the lens assembly adhesive has a textured structure formed by laser engraving.

[0011] Specifically, in this embodiment, the camera module further includes a filter mounted on the main frame for selectively allowing the optical signal to pass through.

[0012] Specifically, in this embodiment, a cavity is provided at the bottom of the main frame, and the image sensor is disposed on the surface of the circuit board and located in the cavity.

[0013] Specifically, in this embodiment, the camera module further includes a bracket assembly with adhesive, which is disposed between the circuit board and the main frame.

[0014] An electronic device including a camera module as described above.

[0015] By incorporating a connecting frame with a bend in the main frame, and using the bend embedded in the main frame to form a mechanical interlocking structure, the shear strength of the bracket assembly is significantly improved, solving the problem of traditional brackets detaching from the lens assembly under mechanical impact. Furthermore, by laser engraving the upper surface of the connecting frame to create a micro-rough structure, and through the integrated molding process of the connecting frame and the main frame, the contradiction between structural strength and volume limitations is resolved, significantly improving the product's reliability and market competitiveness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a camera module provided in one embodiment of the present invention.

[0018] Figure 2 for Figure 1 The diagram shows the structure of the support assembly.

[0019] Figure 3 for Figure 2 Side view of the bracket assembly shown.

[0020] Figure 4 for Figure 3 An enlarged view of part A of the support assembly shown.

[0021] Figure 5 for Figure 2 The diagram shows the structural schematic of the connection frame of the bracket assembly.

[0022] In the diagram: 1. Bracket assembly; 11. Main frame; 111. Mounting slot; 12. Connecting frame; 121. Frame edge; 122. Bending part; 13. Cavity; 14. Bracket assembly adhesive; 2. Filter; 21. Filter adhesive; 3. Lens assembly; 31. Lens assembly adhesive; 4. Image sensor; 41. Image sensor adhesive; 5. Circuit board; 6. Other electronic components; 7. Connector. Detailed Implementation

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when this utility model is in use. They are only for the convenience of description and simplification, 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.

[0026] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0027] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0028] like Figures 1 to 5 As shown, a preferred embodiment of this utility model provides a camera module, including a lens assembly 3 for acquiring optical signals, an image sensor 4 for converting optical signals into image signals, a circuit board 5 for supporting the image sensor 4, and a bracket assembly 1 for supporting the lens assembly 3 and fixing the circuit board 5. The bracket assembly 1 includes a main frame 11 and a connecting frame 12. The circuit board 5 is fixed to the bottom of the main frame 11. Figure 5 As shown, the connecting frame 12 includes multiple frame edges 121 and a bent portion 122 formed on the outer edge of the frame edges 121. The bent portion 122 and the frame edges 121 are not on the same plane. The connecting frame 12 is fitted into the main frame 11, and the bent portion 122 is embedded inside the main frame 11. The camera module also includes a lens assembly adhesive 31 for bonding the connecting frame 12 and the lens assembly 3. By providing a connecting frame 12 with a bent portion 122 in the main frame 11, and utilizing the bent portion 122 embedded inside the main frame 11, the shear strength of the bracket assembly 1 is significantly improved, solving the problem of lens assembly 3 detaching under mechanical impact in traditional brackets. By laser engraving the upper surface of the connecting frame 12 to form a micro-rough structure, and by using the integrated molding process of the connecting frame 12 and the main frame 11, the contradiction between structural strength and volume limitations is resolved, significantly improving the reliability and market competitiveness of the product.

[0029] Specifically, the connecting frame 12 is fitted inside the main frame 11, and the bent portion 122 of the connecting frame 12 is embedded inside the main frame 11 to enhance its structural strength. The lens assembly 3 is bonded to the connecting frame 12 via lens assembly adhesive 31. The main frame 11 is a rectangular frame structure, and a cavity 13 matching the outline of the image sensor 4 is opened at the bottom of the main frame 11. The side of the cavity 13 forms a mounting reference surface for limiting the image sensor 4. The connecting frame 12 is composed of multiple frame edges 121, and is rectangular in shape, matching the shape of the main frame 11 to achieve a tight fit. The shape of the bent portion 122 on the outer edge of the frame edge 121 may be a right-angle bend shape according to the design requirements for embedding inside the main frame 11, which enhances the stability of the connection after embedding inside the main frame 11.

[0030] Specifically, the space formed by the frame edge 121 is also rectangular, and it can be precisely aligned with the cylindrical shape of the lens assembly 3 using the lens assembly adhesive 31. In this embodiment, the lens assembly adhesive 31 itself does not have a specific independent shape; it varies according to the shape of the contact surfaces between the connecting frame 12 and the lens assembly 3. At the connection point between the connecting frame 12 and the lens assembly 3, the lens assembly adhesive 31 fills the space, and its shape conforms to the inner side of the frame edge 121 of the connecting frame 12 and the cylindrical side of the lens assembly 3 to ensure a tight bond and prevent the lens assembly 3 from shifting or loosening.

[0031] In this embodiment, the connection between the connecting frame 12 and the main frame 11 via the embedded bending portion 122 greatly enhances the overall structural strength and stability of the bracket assembly 1, effectively preventing relative positional deviation between the lens assembly 3 and the image sensor 4 due to insecure connection, thereby ensuring accurate transmission of optical signals and imaging quality. Secondly, the use of lens assembly adhesive 31 ensures a tight and reliable connection between the lens assembly 3 and the connecting frame 12, further improving the overall reliability of the camera module.

[0032] In this embodiment, the surface of the main frame 11 is provided with a mounting groove 111 corresponding to the connecting frame 12, and the connecting frame 12 is installed in the mounting groove 111. The mounting groove 111 is used to accurately accommodate the connecting frame 12, ensuring that the connecting frame 12 is installed in an accurate position, thereby ensuring the structural stability of the entire bracket assembly 1, and indirectly ensuring the relative positional accuracy of the lens assembly 3 and the image sensor 4.

[0033] Specifically, the outer surface of the frame edge 121 is provided with a roughened portion to enhance the bonding force between the frame edge 121 and the main frame 11. When the connecting frame 12 is embedded in the mounting groove 111 of the main frame 11, the connecting portion fits tightly against the surface of the main frame 11, effectively preventing the frame edge 121 from shifting or loosening within the mounting groove 111, thus enhancing the connection stability between the connecting frame 12 and the main frame 11, and thereby ensuring the stability of the entire camera module bracket assembly 1.

[0034] In this embodiment, the frame edge 121 is a straight strip plate, and the bent portion 122 is formed by bending all or part of the outer edge of the frame edge 121 in a direction perpendicular to the plane where the frame edge 121 is located. The bent portion 122 is used to enhance the connection strength between the connecting frame 12 and the main frame 11. By embedding it into the interior of the main frame 11, it increases the contact area and the tightness of the connection between the connecting frame 12 and the main frame 11, preventing the connecting frame 12 from shifting or loosening within the main frame 11.

[0035] Specifically, the bends 122 formed by the outer edges of multiple frame edges 121 all extend toward the same side of the frame edges 121, thus forming a discontinuous embedded frame. The length of the bends 122 corresponds to the length of the frame edges 121, and the width is less than the width of the frame edges 121. They extend toward the same side and together form a discontinuous embedded frame. That is, the shape of the embedded frame is similar to the outer contour of the connecting frame 12, but there is a discontinuity. This can effectively resist the displacement of the connecting frame 12 caused by external forces such as vibration and collision, and ensure that the lens assembly 3 and the image sensor 4 always maintain a precise relative position, thereby significantly improving the imaging quality.

[0036] In this embodiment, the lens assembly adhesive 31 is bonded to the transition area between the connecting frame 12 and the lens assembly 3. The surface of the connecting frame 12 relative to the lens assembly adhesive 31 has a textured structure formed by laser engraving. The increased contact area and friction make the connection between the connecting frame 12 and the lens assembly 3 more secure and reliable, effectively avoiding the problem of loosening or displacement of the lens assembly 3 due to poor adhesion.

[0037] In this embodiment, the camera module also includes a light filter 2 mounted on the main frame 11 for filtering light. The light filter 2 is fixed to the main frame 11 by a light filter adhesive 21. The position of the light filter 2 is within the area enclosed by multiple frame edges 121 and is parallel to and opposite to the image sensor 4, blocking stray light and making the captured image cleaner.

[0038] Specifically, a cavity 13 is provided at the bottom of the main frame 11, and the image sensor 4 is disposed on the surface of the circuit board 5 and located inside the cavity 13. The circuit board 5 is communicatively connected to the image sensor 3, and other electronic components 6 are mounted on the circuit board 5.

[0039] Specifically, the camera module also includes a bracket assembly adhesive 14, which is positioned between the circuit board 5 and the main frame 11. The circuit board 5 is larger than the cavity 13. The image sensor 4 is bonded to the circuit board 5 using image sensor adhesive 41. The image sensor 4 has tiny solder balls or bumps on its bottom. After the image sensor adhesive 41 is fixed, reflow soldering heats the solder balls to melt them and form an electrical connection with the pads on the circuit board 5. The circuit board 5, being larger than the cavity 13, is bonded to the bottom of the bracket assembly 1 using the bracket assembly adhesive 14. This ensures that the image sensor 4 will not shift or shake during operation.

[0040] Specifically, it also includes a connector 7 for connecting to an external power source. The connector 7 is mounted on the bottom of the circuit board 5 and is used to provide power to the camera module.

[0041] Another embodiment of this application provides an electronic device, including the camera module of this embodiment. The electronic device includes mobile phones, laptops, etc.

[0042] The camera module can be manufactured through the following methods and steps:

[0043] 1. Preparation of connecting frame 12: The metal connecting frame 12 is formed by stamping and the bending part 122 is processed. Then the bonding surface is laser engraved to form a rough surface.

[0044] 2. Forming the main frame 11: Place the connecting frame 12 into the mold and use the insert injection molding process to form the main frame 11 in one piece, ensuring that the bent part 122 is embedded in the main frame 11.

[0045] 3. Installation of filter 2: Filter 2 is attached to the main frame 11 using filter adhesive 21.

[0046] 4. Assemble the image sensor 4: Fix the mounting substrate 5 and the image sensor 4 with the image sensor adhesive 41, and bond the circuit board 5 to the bracket assembly 1 with the bracket adhesive 14. The circuit board 5 fixes the image sensor 4 in the cavity 13.

[0047] 5. Bonding lens assembly 3: After applying lens assembly adhesive 31 to the laser-engraved surface of the connecting frame 12, press the lens assembly 3 together to form an optical sealing structure, ensuring the precise positioning of the lens optical axis and the image sensor 4.

[0048] This utility model provides a camera module, including a lens assembly 3 for acquiring optical signals, an image sensor 4 for converting optical signals into image signals, a circuit board for carrying the image sensor 4, and a bracket assembly 1 for supporting the lens assembly 3 and fixing the circuit board 5. The bracket assembly 1 includes a main frame 11 and a connecting frame 12. The circuit board 5 is fixed to the bottom of the main frame 11. The connecting frame 12 includes multiple frame edges 121 and a bent portion 122 formed on the outer edge of the frame edges 121. The bent portion 122 is not on the same plane as the frame edges 121. The connecting frame 12 is sleeved in the main frame 11, and the bent portion 122 is embedded in the interior of the main frame 11. The camera module also includes a lens assembly adhesive 31 for bonding the connecting frame 12 and the lens assembly 3. By setting a connecting frame 12 with a bending part 122 in the main frame 11, and using the bending part 122 to embed inside the main frame 11, the shear strength of the bracket assembly 1 is significantly improved, solving the problem of the traditional bracket separating from the lens assembly 3 under mechanical impact; and by using the integrated molding process of the connecting frame 12 and the main frame 11, the contradiction between structural strength and volume limitation is resolved, significantly improving the reliability and market competitiveness of the product.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A camera module comprising a lens assembly (3) for collecting an optical signal, an image sensor (4) for converting the optical signal into an image signal, a circuit board (5) for carrying the image sensor (4), and a holder assembly (1) for supporting the lens assembly (3) and fixing the circuit board (5), characterized in that, The bracket assembly (1) includes a main frame (11) and a connecting frame (12). The circuit board (5) is fixed at the bottom of the main frame (11). The connecting frame (12) includes multiple frame edges (121) and a bent portion (122) formed on the outer edge of the frame edge (121). The bent portion (122) is not on the same plane as the frame edge (121). The connecting frame (12) is fitted in the main frame (11), and the bent portion (122) is embedded in the interior of the main frame (11). The camera module also includes a lens assembly adhesive (31) for bonding the connecting frame (12) to the lens assembly (3).

2. The camera module of claim 1, wherein, The surface of the main frame (11) is provided with a mounting groove (111) corresponding to the connecting frame (12), and the connecting frame (12) is installed in the mounting groove (111).

3. The camera module of claim 2, wherein, The outer surface of the frame edge (121) is provided with a joint portion formed by roughening treatment to enhance the bonding force between the frame edge (121) and the main frame (11).

4. The camera module of claim 1, wherein, The frame edge (121) is a straight strip plate, and the bent part (122) is formed by bending all or part of the outer edge of the frame edge (121) in a direction perpendicular to the plane where the frame edge (121) is located.

5. The camera module of claim 1, wherein, The bends (122) formed by the outer edges of the multiple frame edges (121) all extend toward the same side of the frame edges (121), thereby forming a discontinuous embedded frame.

6. The camera module of claim 1, wherein, The lens assembly adhesive (31) is bonded to the transition area between the connecting frame (12) and the lens assembly (3). The connecting frame (12) has a textured structure formed by laser engraving on the surface of the lens assembly adhesive (31).

7. The camera module of claim 1, wherein, The camera module also includes a filter (2) mounted on the main frame (11) for selectively allowing the optical signal to pass through.

8. The camera module of claim 1, wherein, The main frame (11) has a cavity (13) at its bottom, and the image sensor (4) is disposed on the surface of the circuit board (5) and located inside the cavity (13).

9. The camera module of claim 1, wherein, The camera module also includes a bracket assembly adhesive (14), which is disposed between the circuit board (5) and the main frame (11).

10. An electronic device, comprising: Includes the camera module as described in any one of claims 1-9.

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