A camera module and its angle adjustment fixture

Abstract

The present invention relates to a camera module and an angle adjustment jig thereof. The camera module comprises: a lens (11), a lens holder (12) for mounting the lens (11), and a circuit board (13) connected to the lens holder (12); a plurality of adjustment posts (121) for adjusting the camera module mounting angle are provided at one end of the lens holder (12) connected to the circuit board (13); the circuit board (13) is provided with a plurality of connection holes (131); the adjustment posts (121) pass through the connection holes (131) and are connected to the circuit board (13), and an end of the adjustment posts (121) away from the lens holder (12) protrudes from one side of the circuit board (13) and extends freely. The camera module of the present invention is more convenient to install and has lower cost.

Description

Technical Field

[0001] The invention relates to a camera module and an angle adjustment jig thereof. Background Art

[0002] Traditional cameras have a single internal fixing method, mainly screw connection, snap connection, glue connection, etc. As the use time increases, the screw, snap, and glue connection methods may have the risk of loosening, vibration falling off, or breaking, and lack robustness. In addition, due to the existence of processing tolerances and assembly tolerances, after the camera module is installed, the square boundary of the chip will form a certain angle with the vehicle body counterpart; that is, the positioning is inaccurate, resulting in skewed imaging. At this time, adjusting the overall installation angle of the module can adjust the square boundary of the chip and the square boundary of the vehicle body counterpart to be parallel. In addition, the installation angle of traditional cameras cannot be adjusted during installation, and cannot meet the installation requirements of different batches of vehicles. Therefore, there is an urgent need for a highly reliable adjustable angle camera to meet market demand. Summary of the Invention

[0003] The object of the present invention is to provide a camera module and an angle adjustment jig thereof, so as to achieve angle adjustment during installation of the camera module.

[0004] To achieve the above-mentioned object of the invention, the present invention provides a camera module, comprising: a lens, a lens holder for mounting the lens, and a circuit board connected to the lens holder;

[0005] One end of the lens holder connected to the circuit board is provided with a plurality of adjustment posts for adjusting the installation angle of the camera module;

[0006] The circuit board is provided with a plurality of connection holes;

[0007] The adjusting post passes through the connecting hole and is connected to the circuit board, and one end of the adjusting post away from the mirror seat protrudes from one side of the circuit board and extends freely.

[0008] According to one aspect of the present invention, a plurality of the adjustment posts are arranged at equal intervals along the circumference of the lens.

[0009] According to one aspect of the present invention, the adjustment column is integrally provided with the lens holder or is detachably connected to the lens holder.

[0010] According to one aspect of the present invention, the connection between the position where the adjustment column is connected to the circuit board is at least one of welding, bonding, riveting, and clamping.

[0011] According to one aspect of the present invention, an adhesive layer is provided between the mirror holder and the circuit board.

[0012] According to one aspect of the present invention, the adjustment column includes: a connecting portion and a clamping portion;

[0013] The connecting portion is connected to the circuit board through the connecting hole, and the clamping portion protrudes from one side of the circuit board and freely extends in a direction away from the circuit board.

[0014] According to one aspect of the present invention, the cross-sectional area of the clamping portion is smaller than or equal to the cross-sectional area of the connecting portion.

[0015] According to one aspect of the present invention, the cross-sectional shapes of the connecting portion and the clamping portion are both regular shapes.

[0016] According to one aspect of the present invention, the cross-sectional shapes of the connecting portion and the clamping portion are the same or different.

[0017] According to one aspect of the present invention, the clamping portion is coaxially arranged with the connecting portion, or the clamping portion is offset on the end surface of the connecting portion.

[0018] According to one aspect of the present invention, the clamping portion and the connecting portion are coaxially arranged, and an angle a between a cross section of the clamping portion and a cross section of the connecting portion along the circumference of the adjustment column is ≥0°.

[0019] To achieve the above-mentioned object of the invention, the present invention provides an angle adjustment fixture, comprising: a connecting component, and a driving adjustment component coaxially connected to the connecting component;

[0020] The connecting component is correspondingly provided with an adjustment hole connected to the adjustment column.

[0021] According to one solution of the present invention, the structure of the present invention effectively improves the reliability of the camera module. While being fixed by adhesive, the secondary fixation of the adjustment column is added, which greatly improves the robustness of the module.

[0022] According to one solution of the present invention, the camera module of the present invention is more convenient to install and has lower cost.

[0023] According to one solution of the present invention, the camera module of the present invention supports angle adjustment during installation; and the circuit board is not subjected to force during the adjustment process, so the circuit board will not be deformed and the glue will not crack under force; while meeting the functional requirements, it will not affect the reliability of the module itself.

[0024] According to one solution of the present invention, the camera module structure of the present invention can be used in various types of application scenarios (forward view, surround view, rear view, side view, cabin interior, etc.) and has strong versatility.

[0025] According to one solution of the present invention, the camera module of the present invention realizes multiple fixations between the lens and the circuit board by setting two connection methods, namely an adhesive layer and an adjustment column, between the lens holder and the circuit board, so that the service life of the camera module of the present invention is longer, and the sealing performance is also better while ensuring a long service life.

[0026] According to one solution of the present invention, when the camera module of the present invention adopts an adjustment column to achieve secondary fixation between the circuit board and the lens holder, the adjustment column is also arranged to protrude from the circuit board, so that the protruding portion of the adjustment column can be clamped and connected by an adjustment jig or other tools. In this way, the entire camera module can be rotated and adjusted in the circumferential direction by rotating the adjustment jig, so as to achieve adjustment of the imaging screen of the entire camera module.

[0027] According to one solution of the present invention, an adjustment column is used to adjust the rotation angle of the entire camera module, thereby avoiding direct clamping contact with the camera module circuit board and other positions, which is beneficial to avoiding damage to other structures of the camera module, and can also effectively avoid damage to the connection sealing between the lens holder and the circuit board.

[0028] According to one solution of the present invention, a plurality of adjustment columns are distributed at equal intervals on the lens holder, so that the connection positions with the circuit board are more evenly distributed and the force on the circuit board is more balanced. In addition, in the process of adjusting the rotation angle of the entire camera module, the evenly distributed adjustment columns can also be subjected to uniform force, which is beneficial to ensuring the smooth implementation of the angle adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematically showing an exploded view of a camera module according to one embodiment of the present invention;

[0030] Figure 2 A schematic diagram showing the structure of a camera module according to an embodiment of the present invention;

[0031] Figure 3 A schematic diagram showing the structure of an adjustment column according to an embodiment of the present invention;

[0032] Figure 4 A schematic diagram showing the structure of an adjustment column according to another embodiment of the present invention;

[0033] Figure 5 Schematically showing an end view of an adjustment column according to one embodiment of the present invention;

[0034] Figure 6 Schematically showing an end view of an adjustment column according to another embodiment of the present invention;

[0035] Figure 7 Schematically showing an end view of an adjustment column according to another embodiment of the present invention;

[0036] Figure 8 Schematically showing an end view of an adjustment column according to another embodiment of the present invention;

[0037] Figure 9 The figure schematically shows the structure of a camera module and an adjustment fixture according to an embodiment of the present invention. DETAILED DESCRIPTION

[0038] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0039] When describing the embodiments of the present invention, the orientation or positional relationship expressed by the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the relevant drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0040] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the embodiments of the present invention are not limited to the following embodiments.

[0041] Combine Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, a camera module includes: a lens 11, a lens mount 12 for mounting the lens 11, and a circuit board 13 connected to the lens mount 12. In this embodiment, the end of the lens mount 12 connected to the circuit board 13 is provided with a plurality of adjustment posts 121 for adjusting the camera module installation angle; the circuit board 13 is provided with a plurality of connection holes 131. In this embodiment, the adjustment posts 121 pass through the connection holes 131 to connect to the circuit board 13, and the end of the adjustment posts 121 away from the lens mount 12 protrudes from one side of the circuit board 13 and extends freely.

[0042] According to one embodiment of the present invention, the length of the adjustment column 121 is within the range of 3 mm to 6 mm, ensuring that the equipment can be effectively clamped without affecting the installation of other components.

[0043] Combine Figure 1 and Figure 2As shown, according to one embodiment of the present invention, an adhesive layer 14 is provided between the lens base 12 and the circuit board 13. In this embodiment, the adhesive layer 14 is an AA adhesive layer used between the lens base 12 and the circuit board 13, and is used to connect the lens base 12 and the circuit board 13 and fix the lens 11 and the circuit board 13 after automatic alignment.

[0044] Through the above-mentioned arrangement, the camera module of the present invention realizes multiple fixations between the lens and the circuit board by setting two connection methods, namely, an adhesive layer and an adjustment column, between the lens holder and the circuit board, thereby extending the service life of the camera module of the present invention and achieving better sealing while ensuring a long service life.

[0045] Through the above-mentioned arrangement, in the case where the camera module of the present invention adopts an adjustment column to realize secondary fixation between the circuit board and the lens holder, the adjustment column is also arranged to protrude from the circuit board, so that the protruding portion of the adjustment column can be clamped and connected by an adjustment jig or other tools. In this way, the entire camera module can be rotated and adjusted in the circumferential direction by rotating the adjustment jig, so as to realize adjustment of the imaging screen of the entire camera module.

[0046] Through the above-mentioned setting, by adjusting the connection height between the adjustment column and the circuit board, the distance between the lens in the lens and the circuit board, as well as the position and angle of the lens optical axis relative to the circuit board can be easily adjusted, thereby achieving clear adjustment of the lens imaging effect and effectively improving the imaging quality of the camera module of the present invention.

[0047] Through the above-mentioned setting, the adjustment column is used to adjust the rotation angle of the entire camera module, thereby avoiding direct clamping contact with the camera module circuit board and other positions, which is beneficial to avoiding damage to other structures of the camera module, and can also effectively avoid damage to the connection sealing between the lens holder and the circuit board.

[0048] Combine Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, a plurality of adjustment posts 121 are arranged at equal intervals along the circumference of the lens 12 .

[0049] Through the above arrangement, multiple adjustment columns are evenly spaced on the lens holder, so that the connection positions with the circuit board are more evenly distributed and the force on the circuit board is more balanced. In addition, in the process of adjusting the rotation angle of the entire camera module, the evenly distributed adjustment columns can also be evenly stressed, which is beneficial to ensuring the smooth implementation of the angle adjustment.

[0050] like Figure 1As shown, according to one embodiment of the present invention, the adjustment column 121 is integrally provided with the mirror base 12 or is detachably connected. In this embodiment, the adjustment column 121 and the mirror base 12 can be integrally formed by injection molding, or a connecting structure (such as a thread, a buckle, etc.) can be provided at one end of the adjustment column 121 connected to the mirror base 12 to connect with a matching connecting structure (such as a threaded hole, a buckle, etc.) on the mirror base 12 to achieve a detachable arrangement of the adjustment column. Of course, when the adjustment column 121 is detachably connected to the mirror base 12, more connecting structures can be provided on the mirror base than the number of adjustment columns 121. In this way, the adjustment columns can be selectively connected to the connecting structures on the mirror base as needed, making the distribution of the adjustment columns more flexible.

[0051] According to an embodiment of the present invention, the connection between the position where the adjustment column 121 is connected to the circuit board 13 is at least one of welding, bonding, riveting, and clamping.

[0052] like Figure 3 As shown, according to one embodiment of the present invention, the adjustment column 121 includes a connecting portion 1211 and a clamping portion 1212. In this embodiment, the connecting portion 1211 is connected to the circuit board 13 through the connecting hole 131, and the clamping portion 1212 protrudes from one side of the circuit board 13 and extends freely away from the circuit board 13. In this embodiment, the connecting portion 1211 and the clamping portion 1212 can be an integral structure made of the same material, or they can be made of different materials, wherein the clamping portion 1212 is embedded in the connecting portion 1211. For example, the clamping portion 1212 can be made of a material with a higher hardness than the connecting portion 1211. The provision of the clamping portion 1212 facilitates stable clamping of the adjustment column, which is beneficial for ensuring the rotation of the camera module. In addition, when the clamping portion 1212 is made of different materials from the connecting portion 1211, the structural strength of the clamping portion can be effectively maintained, which is beneficial for ensuring stable adjustment of the rotation angle of the entire camera module.

[0053] According to one embodiment of the present invention, the cross-sectional area of the clamping portion 1212 is smaller than (e.g. Figure 4 as shown) or equal to (as shown Figure 3 (as shown) the cross-sectional area of the connecting portion 1211.

[0054] According to one embodiment of the present invention, the cross-sectional shapes of the connecting portion 1211 and the clamping portion 1212 are both regular shapes. In this embodiment, the cross-sectional shape can be circular (see Figure 5 ), or rectangular (see Figure 6 、 Figure 7 ), triangles and other regular polygons. Through the above settings, the connection position or structure is restricted.

[0055] According to one embodiment of the present invention, the cross-sectional shapes of the connecting portion 1211 and the clamping portion 1212 are the same (see Figure 5 ) or different (see Figure 6 ).

[0056] The above arrangement facilitates the distinction between the clamping portion 1212 and the connecting portion 1211. This ensures that when the connecting portion 1211 is connected to the circuit board, the clamping portion 1212 is not affected, thereby ensuring that the clamping portion can be stably clamped. In particular, when the clamping portion 1212 and the connecting portion 1211 are connected using different materials, a polygonal cross-section can be configured to facilitate a stable connection.

[0057] According to one embodiment of the present invention, the clamping portion 1212 is coaxially arranged with the connecting portion 1211, or (see Figure 5 、 Figure 6 、 Figure 7 ), the clamping portion 1212 is offset on the end surface of the connecting portion 1211 (see Figure 8 ).

[0058] Through the above arrangement, the positions of the clamping parts 1212 on the connecting part can be reasonably distributed to ensure that the corresponding jigs can be easily matched and processed therewith.

[0059] like Figure 7 As shown, according to one embodiment of the present invention, the clamping portion 1212 and the connecting portion 1211 are coaxially arranged, and the angle a between the cross section of the clamping portion 1212 and the cross section of the connecting portion 1211 along the circumference of the adjustment column 121 is ≥0°.

[0060] like Figure 9 As shown, according to one embodiment of the present invention, an angle adjustment fixture for a camera module of the present invention includes: a connecting component 21, and a driving adjustment component 22 coaxially connected to the connecting component 21. In this embodiment, the connecting component 21 is correspondingly provided with an adjustment hole 211 connected to the adjustment column 121.

[0061] The above contents are merely examples of specific solutions of the present invention. For devices and structures not described in detail, it should be understood that they can be implemented by adopting general devices and methods available in the art.

[0062] The above description is merely one embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A camera module, characterized in that: include: A lens (11), a lens holder (12) for mounting the lens (11), and a circuit board (13) connected to the lens holder (12); One end of the lens holder (12) connected to the circuit board (13) is provided with a plurality of adjustment posts (121) for adjusting the installation angle of the camera module; The circuit board (13) is provided with a plurality of connection holes (131); The adjustment column (121) passes through the connection hole (131) and is connected to the circuit board (13), and one end of the adjustment column (121) away from the mirror seat (12) protrudes from one side of the circuit board (13) and extends freely; The adjustment column (121) comprises: a connecting portion (1211) and a clamping portion (1212); The connecting portion (1211) is connected to the circuit board (13) through the connecting hole (131), and the clamping portion (1212) protrudes from one side of the circuit board (13) and freely extends in a direction away from the circuit board (13), and is used to be connected to an angle adjustment jig; The connection method between the position where the adjustment column (121) is connected to the circuit board (13) is at least one of welding, bonding, riveting, and clamping; An adhesive layer (14) is provided between the mirror base (12) and the circuit board (13); The length of the adjustment column (121) is in the range of 3 mm to 6 mm.

2. The camera module according to claim 1, wherein: Along the circumference of the lens (11), a plurality of adjustment posts (121) are arranged at equal intervals.

3. The camera module according to claim 1, wherein: The adjustment column (121) is integrally provided with the mirror base (12) or is detachably connected thereto.

4. The camera module according to claim 1, wherein: The cross-sectional area of the clamping portion (1212) is smaller than or equal to the cross-sectional area of the connecting portion (1211).

5. The camera module according to claim 4, wherein: The cross-sectional shapes of the connecting portion (1211) and the clamping portion (1212) are both regular shapes.

6. The camera module according to claim 5, wherein: The cross-sectional shapes of the connecting portion (1211) and the clamping portion (1212) are the same or different.

7. The camera module according to claim 5 or 6, characterized in that: The clamping portion (1212) is coaxially arranged with the connecting portion (1211), or the clamping portion (1212) is offset on the end face of the connecting portion (1211).

8. The camera module according to claim 7, wherein: The clamping portion (1212) and the connecting portion (1211) are coaxially arranged, and an angle a between a cross section of the clamping portion (1212) and a cross section of the connecting portion (1211) along the circumference of the adjustment column (121) is ≥0°.

9. An angle adjustment jig for the camera module according to any one of claims 1 to 8, characterized in that: include: A connecting component (21), and a driving adjustment component (22) coaxially connected to the connecting component (21); The connecting component (21) is correspondingly provided with an adjustment hole (211) connected to the adjustment column (121).

Images