Camera module

Abstract

The utility model relates to the technical field of camera devices, and discloses a camera module. The camera module comprises a bearing part and a metal cover body, and the bearing part is used for bearing an image sensor; the metal cover body is provided with a containing groove, a long-strip-shaped hole is formed in the connecting position of the groove bottom of the containing groove and the first side wall of the containing groove, a plurality of reinforcing holes are formed in the side wall of the containing groove, the containing groove wraps the outer wall of the bearing part, a plurality of bosses are arranged on the outer wall of the bearing part, and the bosses are located in the long-strip-shaped hole and the reinforcing holes respectively. According to the utility model, the heat dissipation performance of the bearing piece is improved, the assembly strength of the bearing piece and the metal cover body is improved, and the performance of the camera module is improved.

Description

Technical Field

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

[0002] In today's era of booming electronic products, camera modules, as key components for acquiring image information, are widely used in various devices such as mobile phones, tablets, and cameras. The core of a camera module includes an image sensor, whose function is to convert received light into electrical signals, thereby generating an image.

[0003] Image sensors generate a significant amount of heat during operation. However, most of the components supporting image sensors within camera modules are currently made of plastic. While plastic offers advantages such as low cost, light weight, and ease of processing, its heat dissipation performance is poor. Due to the low heat dissipation of plastic components, the heat generated by the image sensor cannot be effectively dissipated in a timely manner, leading to an increase in the temperature around the image sensor. Excessively high temperatures not only affect the normal operation of the image sensor and reduce image quality, causing issues such as increased noise and color distortion, but may also shorten the lifespan of the image sensor and even damage the entire camera module.

[0004] Therefore, there is an urgent need for a camera module to solve the aforementioned problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a camera module that improves the heat dissipation performance of the support component, enhances the assembly strength between the support component and the metal cover, and improves the performance of the camera module.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A camera module, comprising:

[0008] A support component, used to support the image sensor;

[0009] A metal cover is provided with a receiving groove. An elongated hole is provided at the connection between the bottom of the receiving groove and the first side wall of the receiving groove. Multiple reinforcing holes are provided on the side wall of the receiving groove. The receiving groove covers the outer wall of the support member. Multiple bosses are provided on the outer wall of the support member. The multiple bosses are respectively located in the elongated hole and the multiple reinforcing holes.

[0010] As a preferred technical solution for a camera module, a notch is provided at the end of the first sidewall facing away from the bottom of the groove, and the boss is provided in the notch.

[0011] As a preferred technical solution for a camera module, the camera module further includes:

[0012] Base assembly;

[0013] The outer shell is connected to the base assembly, and a receiving cavity is formed between the outer shell and the base assembly. The carrier is slidably disposed in the receiving cavity along a first direction, and the outer shell is provided with a central opening.

[0014] The lens assembly is fixed inside the central opening of the housing;

[0015] An image sensor is fixed to the side of the carrier near the base assembly, and the lens assembly is coaxially arranged with the image sensor;

[0016] A drive module is connected to the carrier and is used to drive the carrier to move along the first direction.

[0017] As a preferred technical solution for a camera module, the driving module includes a magnet assembly and a coil assembly. The magnet assembly is disposed on one side of the carrier. The coil assembly is fixedly disposed in the accommodating cavity and is disposed opposite to the magnet assembly. The coil assembly includes a circuit board, a coil support plate, and a coil arranged sequentially. The coil is fixed on the coil support plate. A first guide wire extends from the inner side of the coil, and a second guide wire extends from the outer side. The coil support plate has a first accommodating groove extending through the edge of the coil support plate on the side facing the coil. The first guide wire passes through the first accommodating groove and is electrically connected to the circuit board.

[0018] As a preferred technical solution for a camera module, the outer dimensions of the coil support plate are larger than the outer dimensions of the coil; the coil has a first central hole, and a second central hole is provided on the coil support plate, the size of the second central hole being smaller than the size of the first central hole.

[0019] As a preferred technical solution for a camera module, the coil support plate is made of a soft magnetic metal material, and the shape of the coil support plate is a centrally symmetrical figure; the side of the coil support plate facing the coil is also provided with a second receiving groove, and the first receiving groove and the second receiving groove are symmetrically arranged about the center of the coil support plate or rotated 180 degrees about the axis of the second central hole.

[0020] As a preferred technical solution for a camera module, both the first receiving slot and the second receiving slot are arc-shaped, and the first receiving slot and the second receiving slot are located at diagonal positions on the coil support plate.

[0021] As a preferred technical solution for a camera module, both the first accommodating slot and the second accommodating slot include: a first extension segment, a second extension segment, and an arc-shaped connecting segment connecting the first extension segment and the second extension segment, wherein the included angle between the first extension segment and the second extension segment is an obtuse angle, and the second extension segment penetrates the edge of the coil support plate.

[0022] As a preferred technical solution for a camera module, the base assembly includes a base and a fixing member, wherein the fixing member is disposed on the base and located on one side of the base;

[0023] The support member has a first sliding groove on the side near the fixing member, and the fixing member has a second sliding groove on the side near the support member. A guide member is installed between the first and second sliding grooves to allow the support member and the fixing member to slide together; and / or,

[0024] The carrier has a first mounting groove on the side near the fixing member, and the magnet assembly is mounted in the first mounting groove; the fixing member has a second mounting groove on the side near the carrier, and the coil assembly is mounted in the second mounting groove; and / or,

[0025] The carrier includes a movable through-hole that extends longitudinally through the carrier. The image sensor is located below the movable through-hole, and the lens assembly is located above the movable through-hole, with the outer diameter of the lens assembly being smaller than the diameter of the movable through-hole; and / or,

[0026] The coil assembly further includes a magnetic sensor electrically connected to the circuit board; and / or,

[0027] The magnet assembly includes a shielding plate and at least one magnet, each of which is fixed to the shielding plate.

[0028] As a preferred technical solution for a camera module, the base and the fixing component are separate structures, and the fixing component is fixed to the base;

[0029] The lower end of the first slide groove is provided with a first limiting member, and the upper end of the second slide groove is provided with a second limiting member, which are used to prevent the guide member from sliding out from between the first slide groove and the second slide groove.

[0030] The beneficial effects of this utility model are as follows:

[0031] This invention provides a camera module that utilizes a metal housing to enclose the carrier component. When the image sensor generates heat, the heat is dissipated through the carrier component and the metal housing. The metal housing enhances the heat dissipation performance of the carrier component, effectively dissipating the heat generated by the image sensor and improving the performance of the camera module. Furthermore, the protrusions on the outer wall of the carrier component are located within the elongated hole and the reinforcing hole, respectively, increasing the assembly strength between the carrier component and the metal housing. This prevents the carrier component from separating from the metal housing during use or drop tests, further enhancing the performance of the camera module. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the camera module provided in Embodiment 1 of this utility model;

[0034] Figure 2 This is an exploded view of the camera module provided in Embodiment 1 of this utility model;

[0035] Figure 3 This is a schematic diagram of the camera module provided in Embodiment 1 of this utility model, after removing the outer shell and lens assembly;

[0036] Figure 4 This is an exploded view of the carrier and magnet assembly provided in Embodiment 1 of this utility model;

[0037] Figure 5 This is an exploded view of the fixing member, coil assembly, and guide member provided in Embodiment 1 of this utility model;

[0038] Figure 6 This is a schematic diagram of the first angle structure of the coil and coil support plate provided in Embodiment 1 of this utility model;

[0039] Figure 7 This is a schematic diagram of the second angle structure of the coil and coil support plate provided in Embodiment 1 of this utility model;

[0040] Figure 8 This is a schematic diagram of the coil structure provided in Embodiment 1 of this utility model;

[0041] Figure 9 This is a schematic diagram of the coil support plate provided in Embodiment 1 of this utility model;

[0042] Figure 10 This is a schematic diagram of the structure of the base provided in Embodiment 1 of this utility model;

[0043] Figure 11 This is a schematic diagram of the assembly of the support member and the metal cover provided in Embodiment 1 of this utility model;

[0044] Figure 12 This is an exploded view of the structure of the support member and the metal cover provided in Embodiment 1 of this utility model;

[0045] Figure 13 This is a schematic flowchart of the molding process provided in Embodiment 1 of this utility model;

[0046] Figure 14 This is a schematic diagram of the structure of a metal plate with a preset shape provided in Embodiment 1 of this utility model;

[0047] Figure 15 This is a schematic diagram of the metal plate bending and forming structure provided in Embodiment 1 of this utility model;

[0048] Figure 16 This is an exploded view of the camera module provided in Embodiment 2 of this utility model;

[0049] Figure 17 This is a schematic diagram of the first angle structure of the base assembly provided in Embodiment 2 of this utility model;

[0050] Figure 18 This is a schematic diagram of the second angle structure of the base assembly provided in Embodiment 2 of this utility model;

[0051] Figure 19 This is a schematic diagram of the structure of the carrier provided in Embodiment 2 of this utility model.

[0052] In the picture:

[0053] 1. Base assembly; 11. Base; 111. Side frame; 112. Bottom frame; 1121. Mounting opening; 1122. Adhesive groove; 113. Limiting block; 12. Fixing component; 121. Second slide groove; 1211. Second limiting component; 1212. Fourth limiting component; 122. Second mounting groove; 123. Indentation structure; 13. Image sensor; 14. Driver circuit; 15. Base plate; 2. Bearing component; 21. First slide groove; 211. First limiting component; 212. Third limiting component; 22. First mounting groove; 23. Moving through hole; 24. Anti-collision block; 25. Boss; 3. Magnet assembly; 31 1. Shielding plate; 32. Magnet; 4. Coil assembly; 41. Circuit board; 42. Coil support plate; 421. First receiving groove; 4211. First extension section; 4212. Second extension section; 4213. Arc-shaped connecting section; 422. Second receiving groove; 423. Second center hole; 43. Coil; 431. First guide wire; 432. Second guide wire; 433. First center hole; 44. Magnetic sensor; 5. Housing; 51. Center opening; 6. Guide component; 7. Lens assembly; 8. Metal cover; 81. Receiving groove; 82. First side wall; 83. Elongated hole; 84. Reinforcing hole; 85. Notch. Detailed Implementation

[0054] 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, not the entire structure.

[0055] 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.

[0056] 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.

[0057] In the description of this embodiment, the terms "upper," "lower," "left," and "right," 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.

[0058] This utility model provides a camera module that can be applied to the camera of electronic products, and achieves automatic focusing or optical image stabilization of the lens through the drive of a voice coil motor.

[0059] Example 1

[0060] like Figures 1 to 10As shown, this embodiment provides a camera module, including a base assembly 1, a carrier 2, a housing 5, a lens assembly 7, an image sensor 13, and a driving module. The base assembly 1 includes a base 11 and a fixing member 12, the fixing member 12 being disposed on the base 11 and located on one side of the base 11. Preferably, the fixing member 12 is perpendicular to the base 11. The housing 5 is connected to the base 11, forming a receiving cavity between the housing 5 and the base assembly 1. The housing 5 has a central opening 51, the size of which is adapted to the size of the lens assembly 7, and the lens assembly 7 is fixed within the central opening 51. The carrier 2 is slidably disposed within the receiving cavity along a first direction. The first direction is specifically the optical axis direction of the lens assembly 7. The image sensor 13 is located within the receiving cavity and fixed to the side of the carrier 2 near the base 11, and the lens assembly 7 is coaxially disposed with the image sensor 13. The carrier 2 can move the image sensor 13 within the receiving cavity along the optical axis direction, changing the distance between the image sensor 13 and the lens assembly 7, thereby adjusting the lens focus. Image sensor 13 can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) sensor. The image projected onto image sensor 13 can be captured, stored, and / or presented to the user. Further, the carrier 2 has an annular structure with a movable through-hole 23 at its center. The movable through-hole 23 extends longitudinally through the carrier 2. Image sensor 13 is located below the movable through-hole 23, and lens assembly 7 is located above the movable through-hole 23. This allows light to pass through lens assembly 7 and then through the movable through-hole 23 to reach image sensor 13, thus obtaining an image. Moreover, the outer diameter of lens assembly 7 is smaller than the aperture of movable through-hole 23, allowing lens assembly 7 to smoothly pass through movable through-hole 23 when carrier 2 carries image sensor 13. A drive module is connected to carrier 2 and drives carrier 2 to move along a first direction, achieving automatic focusing of the lens.

[0061] Furthermore, in this embodiment, by directly fixing the lens assembly 7 within the central opening 51 of the housing 5, light can directly pass through the lens assembly 7 to reach the image sensor 13, ensuring that the normal passage of light is not obstructed under any circumstances. This embodiment, by first fixing the housing 5 to the lens assembly 7, only requires ensuring that the image sensor 13 and the lens assembly 7 are coaxial during assembly, thus ensuring assembly accuracy and facilitating optimization of the assembly process. Specifically, the lens assembly 7 may include one or more lenses, which can interact to focus light onto the image sensor 13.

[0062] In this embodiment, the driving module uses a voice coil motor to drive the image sensor 13. The voice coil motor specifically includes a magnet assembly 3 and a coil assembly 4. The magnet assembly 3 is located on the side of the support member 2 near the fixing member 12, and the coil assembly 4 is located on the side of the fixing member 12 near the support member 2, with the coil assembly 4 positioned opposite to the magnet assembly 3. Due to the close proximity of the magnet assembly 3 and the coil assembly 4, an electric current can be used to excite the coil assembly 4 to generate a magnetic field that interacts with the magnetic field of the magnet assembly 3. The attractive or repulsive force between the magnetic fields drives the support member 2 and the image sensor 13 to move upwards or downwards along the optical axis within the accommodating cavity, thereby adjusting the distance between the image sensor 13 and the lens assembly 7 and achieving the function of automatic focusing.

[0063] The drive module in this embodiment also includes a base plate 15 and a driver circuit 14. The base plate 15 is fixed below the base 11, and the driver circuit 14 is mounted on the base plate 15. The driver circuit 14 is electrically coupled to the image sensor 13 and the coil assembly 4, respectively. The driver circuit 14, for example, a driver IC, supplies power to the coil assembly 4 to excite the coil assembly 4 and generate a second magnetic field that interacts with the magnetic field of the magnet assembly 3. The driver IC can excite the coil assembly 4 in response to a control signal provided to the driver IC from an external controller, such as a microprocessor or other data processing device. In some embodiments, the driver IC can adjust the magnetic field emitted from the coil assembly 4 to drive the carrier 2 to move up or down to a precise position, for example, by reversing the direction of the current supplied to the coil assembly 4 (thus reversing the polarity of the magnetic field generated from the coil assembly 4) and adjusting the effective strength of the magnetic field (e.g., using pulse width modulation) to adjust the amount of attractive or repulsive force between the magnet assembly 3 and the coil assembly 4, thereby causing the image sensor 13 to move up and down via the carrier 2 by the magnet assembly 3. The image sensor 13 can transmit the detected image information back to the control module of the camera device, etc., via the driver circuit 14. Furthermore, the driver circuit 14 also has a flexible function, which can help the image sensor 13 reset after movement, and at the same time make the image sensor 13 more stable when moving up and down.

[0064] Optionally, a first groove 21 is provided on the side of the carrier 2 opposite to the fixing member 12, and a second groove 121 is provided on the side of the fixing member 12 opposite to the carrier 2. Both the first groove 21 and the second groove 121 extend along the optical axis of the lens assembly 7. A guide member 6 is installed between the first groove 21 and the second groove 121, thereby allowing the carrier 2 to slide relative to the fixing member 12. This arrangement increases the smoothness and accuracy of the movement of the carrier 2 along the optical axis and reduces frictional resistance. Specifically, the guide member 6 can be a plurality of ball bearings or a guide post extending along the optical axis, both of which can play a good guiding role. Preferably, in this embodiment, the guide member 6 uses ball bearings for guidance.

[0065] In this embodiment, the base 11 and the fixing member 12 are separate structures. The fixing member 12 is fixed to the base 11, for example, by bonding, screwing, snapping, etc. The base assembly 1 in this embodiment adopts a separate structure, which facilitates the separate processing of the base 11 and the fixing member 12. For this separate structure, in this embodiment, preferably, a first limiting member 211 is provided at the lower end of the first slide groove 21, and a second limiting member 1211 is provided at the upper end of the second slide groove 121, which are used to prevent the guide member 6 from sliding out between the first slide groove 21 and the second slide groove 121, and limit the stroke of the bearing member 2 moving along the optical axis. Of course, in other embodiments, the first limiting member 211 can also be provided at the upper end of the first slide groove 21, and the second limiting member 1211 can also be provided at the lower end of the second slide groove 121, which can also play a limiting role.

[0066] Furthermore, a first mounting groove 22 is provided on the side of the carrier 2 facing the fixing member 12, and the magnet assembly 3 is installed in the first mounting groove 22. Optionally, the magnet assembly 3 includes a shielding plate 31 and at least one magnet 32. In this embodiment, the shielding plate 31 is a magnetic plate made of a high magnetic permeability material. Multiple magnets 32 are fixed to the shielding plate 31 by means of bonding or other methods. After the multiple magnets 32 are combined, they form a magnetic surface facing the coil assembly 4. A second mounting groove 122 is provided on the side of the fixing member 12 facing the carrier 2, and the coil assembly 4 is installed in the second mounting groove 122, with the coil assembly 4 and the magnet assembly 3 positioned opposite each other.

[0067] The coil assembly 4 in this embodiment includes a circuit board 41, a coil support plate 42, a coil 43, and a magnetic sensor 44. The circuit board 41, the coil support plate 42, and the coil 43 are sequentially mounted in the second mounting groove 122 of the fixing member 12 from the distance away from the magnet assembly 3 to the distance closer to the magnet assembly 3. The coil 43 is fixed (e.g., glued) to the coil support plate 42 and electrically connected to the circuit board 41. The circuit board 41 provides control signals and drive current to the coil 43. The magnetic sensor 44 is located in the middle of the coil 43 and is electrically connected to the circuit board 41 to sense the strength of the magnetic field. The circuit board 41 in this embodiment can be a flexible circuit board, a rigid circuit board, or a flexible-rigid hybrid circuit board. When the circuit board 41 is a flexible circuit board, a reinforcing plate can also be provided to increase the strength of the flexible circuit board.

[0068] The coil 43 is typically made of copper-clad wire. After winding, a first guide wire 431 extends from its inner side and a second guide wire 432 extends from its outer side. Both the first guide wire 431 and the second guide wire 432 are electrically connected to the circuit board 41. When assembling the coil assembly 4, the first guide wire 431 located inside the coil 43 needs to extend laterally outward, thus clamping the first guide wire 431 between the end face of the coil 43 and the coil support plate 42. This can cause interference between the first guide wire 431 and the coil support plate 42, resulting in excessive compression of the first guide wire 431, or even breaking the first guide wire 431, thereby affecting the normal use of the camera module.

[0069] To solve the above problems, in this embodiment, the coil support plate 42 has a first receiving groove 421 that penetrates the edge of the coil support plate 42 on the side facing the coil 43, so as to accommodate the first guide wire 431 of the coil 43 extending laterally from the inside. After the first guide wire 431 passes through the first receiving groove 421, it is electrically connected to the circuit board 41. This avoids interference between the first guide wire 431 and the coil support plate 42, greatly reduces the risk of the first guide wire 431 being squeezed or even broken, and ensures the reliability of the camera module.

[0070] In this embodiment, the outer casing 5 is a shell structure with an opening on the lower side. The outer casing 5 is fastened to the base 11. The carrier 2, the fixing member 12, the image sensor 13, the magnet assembly 3, and the coil assembly 4 are all housed within the accommodating cavity, thus providing good protection for the internal components through the outer casing 5. Preferably, the outer casing 5 is made of metal, and its shape is a quadrilateral shell with an open lower end. Specifically, it can be manufactured from metal material through processes such as punching and bending. The metal outer casing 5 can protect the camera module from electromagnetic interference (EMI) that may occur in the environment.

[0071] In this embodiment, the coil support plate 42 is made of a soft magnetic metallic material, characterized by low coercivity and high permeability, making it easy to magnetize and demagnetize. Specifically, the coil support plate 42 can be made of iron-silicon alloy, soft magnetic ferrite, etc. When the magnet assembly 3, the carrier 2, and the image sensor 13 move away from their initial positions along the optical axis, there is a certain restoring force between the magnet assembly 3 and the coil support plate 42, which enables the magnet assembly 3, the carrier 2, and the image sensor 13 to return to their initial positions. To ensure the accuracy of the resetting of the magnet assembly 3, the carrier 2, and the image sensor 13, in this embodiment, the shape of the coil support plate 42 is preferably a centrally symmetrical figure, so that the magnetic force acting on the magnet assembly 3 is symmetrical. For example, the coil support plate 42 can be circular, elliptical, rectangular, etc. Furthermore, a second receiving groove 422 is provided on the side of the coil support plate 42 facing the coil 43. The second receiving groove 422 has the same structure as the first receiving groove 421, and the second receiving groove 422 and the first receiving groove 421 are symmetrically arranged about the center of the coil support plate 42. This further ensures the symmetrical counterweight of the coil support plate 42, so that the magnetic force on the magnet assembly 3 is symmetrical, which increases the stability and accuracy of the movement of the magnet assembly 3, the carrier 2 and the image sensor 13. At the same time, the second receiving groove 422 is also helpful to reduce the weight of the product.

[0072] In this embodiment, the outer shape of the coil support plate 42 is the same as that of the coil 43, and the outer dimension of the coil support plate 42 is larger than that of the coil 43. The coil 43 is wound with a first central hole 433, and the coil support plate 42 has a second central hole 423, the size of which is smaller than that of the first central hole 433. This arrangement allows the coil 43 to be completely accommodated on the coil support plate 42, resulting in a compact structure and reliable use.

[0073] The thickness of the coil support plate 42 affects the magnitude of the Lorentz force on the magnet assembly 3. Specifically, the greater the thickness of the coil support plate 42, the greater the Lorentz force on the magnet assembly 3. To ensure sufficient driving force for the magnet assembly 3, the thickness of the coil support plate 42 should not be significantly reduced when fabricating the first receiving groove 421 and the second receiving groove 422. In this embodiment, the depth of the first receiving groove 421 and the second receiving groove 422 is 20% to 40% of the thickness of the coil support plate 42. This provides adequate accommodating space for the first guide wire 431 while minimizing magnetic force loss. Preferably, the first receiving groove 421 and the second receiving groove 422 in this embodiment are manufactured by stamping. For ease of processing, the depth of the first receiving groove 421 and the second receiving groove 422 is set to 30% of the thickness of the coil support plate 42, i.e., 30% of the thickness of the coil support plate 42 is removed. It should be noted that when the coil support plate 42 is relatively thick, the depth of the first receiving groove 421 and the second receiving groove 422 can be greater than or equal to the diameter of the first guide wire 431, so that the first guide wire 431 can be completely embedded in the first receiving groove 421; while when the coil support plate 42 is not very thick, the depth of the first receiving groove 421 and the second receiving groove 422 can be slightly less than the diameter of the first guide wire 431. In this case, the first guide wire 431 is partially received in the first receiving groove 421, which can also reduce the interference and compression between the first guide wire 431 and the coil support plate 42.

[0074] Furthermore, since the first guide line 431 may move during the use and testing of the camera module, if the width of the first receiving groove 421 is set to be the same as the diameter of the first guide line 431, interference may easily occur. Therefore, in this embodiment, the width of the first receiving groove 421 is greater than the diameter of the first guide line 431. Preferably, the width of the first receiving groove 421 is 5 to 10 times the diameter of the first guide line 431 to provide sufficient movement space for the first guide line 431. To ensure structural symmetry, the width of the second receiving groove 422 is also 5 to 10 times the diameter of the first guide line 431, and the width of the second receiving groove 422 is the same as the width of the first receiving groove 421.

[0075] To better adapt to the actual routing of the first guide wire 431, in this embodiment, the first receiving groove 421 is preferably arc-shaped. Specifically, the first receiving groove 421 includes: a first extension 4211, a second extension 4212, and an arc-shaped connecting section 4213 connecting the first extension 4211 and the second extension 4212, wherein the included angle between the first extension 4211 and the second extension 4212 is an obtuse angle, and the second extension 4212 penetrates the edge of the coil support plate 42. The shape of the second receiving groove 422 is the same as that of the first receiving groove 421, and will not be described again in this embodiment. Further, the first receiving groove 421 and the second receiving groove 422 are located at diagonal positions of the coil support plate 42. This arrangement facilitates the connection of the first guide wire 431 to the circuit board 41 after being led out along the first receiving groove 421, and also facilitates the processing of the groove. Of course, in other embodiments, the shape of the first receiving groove 421 can also be straight or broken, etc., and is not limited to this embodiment.

[0076] In this embodiment, the top and / or sides of the support member 2 are also provided with a plurality of anti-collision blocks 24. When the camera module is subjected to external impact or severe vibration, the anti-collision blocks 24 can play a shock-absorbing and buffering role; at the same time, the anti-collision blocks 24 can limit and buffer the movement of the support member 2, reduce the impact force between the support member 2 and the outer shell 5 during the movement, and improve the vibration reduction and noise reduction performance of the camera module. Preferably, the anti-collision blocks 24 are made of elastic materials, such as silicone, rubber or resin, so as to better absorb the impact force generated by vibration and protect the camera module from vibration.

[0077] In existing technologies, the image sensor 13 generates a significant amount of heat during operation. However, the support component 2 that carries the image sensor 13 within the camera module is mostly made of plastic. While plastic has advantages such as low cost, light weight, and ease of processing and molding, its heat dissipation performance is poor. Due to the low heat dissipation of the plastic support component 2, the heat generated by the image sensor 13 cannot be dissipated effectively and promptly, leading to an increase in the temperature around the image sensor 13. Excessive temperature not only affects the normal operation of the image sensor 13 and reduces image quality, causing problems such as increased noise and color distortion, but may also shorten the lifespan of the image sensor 13 and even damage the entire camera module.

[0078] To solve the above problems, such as Figure 11 and Figure 12As shown, in this embodiment, the camera module further includes a metal cover 8, and a support member 2 for supporting the image sensor 13. The metal cover 8 is provided with a receiving groove 81. The bottom of the receiving groove 81 and the connection between the first side wall 82 of the receiving groove 81 are provided with an elongated hole 83. The side wall of the receiving groove 81 is provided with multiple reinforcing holes 84. The receiving groove 81 covers the outer wall of the support member 2. The outer wall of the support member 2 is provided with multiple bosses 25, which are located in the elongated hole 83 and the multiple reinforcing holes 84, respectively. By using the receiving groove 81 of the metal cover 8 to cover the support member 2, when the image sensor 13 heats up, the heat of the image sensor 13 can be dissipated through the support member 2 and the metal cover 8. The metal cover 8 improves the heat dissipation performance of the support member 2, and the heat generated by the image sensor 13 can be effectively dissipated, thereby improving the performance of the camera module. Furthermore, the bosses 25 on the outer wall of the support component 2 are located in the elongated hole 83 and the reinforcing hole 84, respectively, which improves the assembly strength between the support component 2 and the metal cover 8. When the camera module is used or subjected to a drop test, it prevents the support component 2 from separating from the metal cover 8 and improves the reliability of the camera module.

[0079] Preferably, a notch 85 is provided at one end of the first sidewall 82 away from the bottom of the groove, and a boss 25 is provided in the notch 85. After the support member 2 is connected to the metal cover 8, the boss 25 in the elongated hole 83 and the boss 25 in the notch 85 respectively abut against the two ends of the first sidewall 82 along the first direction, thereby restricting the metal cover 8 from swaying relative to the support member 2 in the first direction and improving the connection strength between the support member 2 and the metal cover 8.

[0080] In the prior art, the metal cover 8 is often processed by stretch forming. Before forming, the corner of the receiving groove 81 of the metal cover 8 is provided with holes that are conducive to forming and mating with plastic parts. During the stretch forming process, the holes are easily damaged or deformed, resulting in poor precision. If the holes are deformed, it will affect the strength of the bearing 2, and the bearing 2 and the metal cover 8 may not fit properly. During testing, the bearing 2 is prone to deformation or breakage.

[0081] To solve the above problems, such as Figures 13 to 15 As shown, this embodiment also provides a molding process for manufacturing the carrier 2 and the metal cover 8 in the above-mentioned camera module. The molding process includes the following steps:

[0082] S1. Create a metal plate of a preset shape, which is the shape of the metal cover 8 after it is unfolded;

[0083] S2. Machining reinforcing holes 84 and notches 85 at predetermined positions on the metal plate;

[0084] S3. The metal plate is bent to form a metal cover 8, and the elongated hole 83 of the metal cover 8 is formed.

[0085] S4. The metal cover 8 is injection molded into an insert to form the support component 2. The reinforcing hole 84, the notch 85 and the elongated hole 83 are all formed with the boss 25 of the support component 2.

[0086] The metal cover 8 is punched before molding and formed using a bending process. Compared to a stretching process, bending reduces the manufacturing difficulty of the metal cover 8, improves the precision of the reinforcing holes 84, notches 85, and elongated holes 83, and reduces the probability of product defects. The support component 2 is injection molded as an insert on the metal cover 8, increasing the connection strength between the metal cover 8 and the support component 2, preventing the metal cover 8 from falling off, and reducing uncertainties in the production process. Moreover, it is also possible to form a large and highly precise elongated hole 83 at the connection between the bottom of the receiving groove 81 and the first side wall 82 of the receiving groove 81.

[0087] Furthermore, such as Figures 1-10 As shown, the base 11 in this embodiment includes a bottom frame 112 and side frames 111 disposed on the bottom frame 112. The bottom surface of the housing 5 can be glued to the bottom frame 112, and the side frames 111 surround the periphery of the housing 5. The connection between the housing 5 and the base 11 makes the connection more secure; at the same time, the base 11 can provide a more accurate mounting position for the housing 5, so that the lens assembly 7 on the housing 5 can quickly achieve optical axis coaxiality with the image sensor 13. The bottom frame 112 has a mounting opening 1121 in the middle position. The size of the mounting opening 1121 is smaller than the inner size of the side frame 111, so that a certain width of the bottom frame 112 can be exposed to support the housing 5, reducing manufacturing difficulty and increasing product stability; and the mounting opening 1121 allows the coil assembly 4 to be electrically connected to the driver circuit 14.

[0088] The bottom frame 112 is also provided with an adhesive receiving groove 1122. The adhesive receiving groove 1122 is formed by a downward indentation from the upper surface of the bottom frame 112. It is used to store a small amount of adhesive when bonding the outer shell 5 to the base 11, to avoid adhesive overflow, reduce the probability of product abnormalities, and ensure the functional characteristics of the product.

[0089] The base 11 also includes a limiting block 113. One end of the limiting block 113 is connected to the inner side of the bottom frame 112, and the other end extends toward the interior of the mounting opening 1121. The limiting block 113 is used to receive the carrier 2 and prevent the carrier 2 from moving out of the accommodating cavity. The limiting block 113 can restrict the downward movement of the carrier 2. When the carrier 2 moves to the lowest position, the bottom surface of the carrier 2 abuts against the upper surface of the limiting block 113.

[0090] Optionally, the upper surface of the limiting block 113 is higher than the upper surface of the bottom frame 112. Since the area of ​​the limiting block 113 is small, its flatness is easy to control, so that when the carrier 2 contacts the limiting block 113, the image sensor 13 can still maintain the optical axis coaxial with the lens assembly 7. Moreover, the above arrangement can also prevent the glue from being squeezed onto the upper surface of the limiting block 113 when the housing 5 is bonded to the base 11, thus affecting the movement of the carrier 2.

[0091] Example 2

[0092] like Figures 16 to 19 As shown, this embodiment provides another camera module, whose structure is basically the same as that in Embodiment 1, also including a base assembly 1, a support member 2, a magnet assembly 3, a coil assembly 4, a housing 5, a guide member 6, a lens assembly 7, an image sensor 13, a driver circuit 14, a base plate 15, a first mounting groove 22, a movable through hole 23, a collision protection block 24, a central opening 51, a second mounting groove 122, etc. The following description of this embodiment only explains the differences from Embodiment 1, while the parts that are the same as in Embodiment 1 will not be repeated.

[0093] In this embodiment, the base assembly 1 includes a base 11 and a fixing member 12, wherein the base 11 is used to contact the carrier 2, and the fixing member 12 is used to support the coil assembly 4. In this embodiment, the fixing member 12 is integrally disposed on the base 11 and located on one side of the base 11, that is, the base assembly 1 is an integral structure, manufactured by an integral molding process. Furthermore, the fixing member 12 is perpendicular to the base 11. The base assembly 1 of this embodiment adopts an integral structure, which not only improves the structural strength and reduces the number of parts, thus saving costs; but also eliminates the assembly steps between the base 11 and the fixing member 12, reducing assembly difficulty, reducing assembly errors, improving the positioning accuracy between the carrier 2 and the outer shell 5, and avoiding uncertainties in the assembly process; in addition, it ensures the perpendicularity between the fixing member 12 and the base 11, avoiding the situation where the perpendicularity of the fixing member 12 and the base 11 is unstable when using a split structure, thus increasing the product's robustness.

[0094] Furthermore, in this embodiment, a first sliding groove 21 is provided on the side of the carrier 2 near the fixing member 12, and a second sliding groove 121 is provided on the side of the fixing member 12 near the carrier 2. A guide member 6 is installed between the first sliding groove 21 and the second sliding groove 121 to achieve a sliding connection between the carrier 2 and the fixing member 12. Since the base assembly 1 in this embodiment is an integral structure, the carrier 2 needs to be assembled onto the base assembly 1 from above. If a limiting member is provided at the upper end of the second sliding groove 121 of the fixing member 12, it will interfere with the assembly of the carrier 2 and affect the assembly of the carrier 2. Therefore, in this embodiment, a third limiting member 212 is provided at the upper end of the first sliding groove 21 of the carrier 2, and a fourth limiting member 1212 is provided at the lower end of the second sliding groove 121, thereby preventing the guide member 6 from sliding out from between the first sliding groove 21 and the second sliding groove 121. This arrangement avoids interference with the assembly of the carrier 2, facilitates the smooth installation of the carrier 2, reduces the assembly difficulty, and increases the product's stability.

[0095] Preferably, in this embodiment, the outer shell 5 and the fastener 12 are fixed by adhesive bonding, which is simple to assemble and reliable in connection. In the prior art, the surface of the fastener 12 is usually smooth, which makes it difficult for adhesive to adhere to the surface of the fastener 12, thus affecting the bonding effect between the outer shell 5 and the fastener 12. To solve the above problem, this embodiment provides a recessed structure 123 on the surface of the fastener 12 away from the support member 2 (i.e., the outer surface). This allows the adhesive to remain and adhere within the recessed structure 123 when adhesive is applied to the outer surface of the fastener 12, thereby achieving reliable bonding between the outer surface of the fastener 12 and the inner wall of the outer shell 5.

[0096] Specifically, the aforementioned recessed structure 123 includes multiple elongated grooves, each extending horizontally, which allows the adhesive to adhere better to the outer surface of the fastener 12. Furthermore, the multiple grooves are evenly arranged in an array on the outer surface of the fastener 12 to increase the uniformity of adhesion to the housing 5. In this embodiment, the adhesive is preferably glue.

[0097] Furthermore, the base 11 of this embodiment includes a side frame 111 extending around the periphery of the outer shell 5 and a bottom frame 112 having a mounting opening 1121, wherein the fastener 12 is integrally disposed within the bottom frame 112; the base 11 also includes a limiting block 113, which is connected to the inner side of the bottom frame 112 and extends toward the interior of the mounting opening 1121, and the bottom surface of the carrier 2 contacts the limiting block 113.

[0098] Furthermore, in this embodiment, three limiting blocks 113 are provided on the inner side of the bottom frame 112. One limiting block 113 is located on the side opposite to the fixing member 12; the other two limiting blocks 113 are symmetrically arranged on the two inner sides of the bottom frame 112, and these two limiting blocks 113 extend one-to-one to connect with the two sides of the fixing member 12. The arrangement of the above three limiting blocks 113 can improve the balance of the impact force of the bearing member 2 on the limiting block 113 and increase the support stability of the bearing member 2. The two limiting blocks 113 located on both sides are connected to the fixing member 12, which can increase the structural strength of the limiting block 113. The length of the limiting blocks 113 on both sides is also extended to a certain extent, thereby increasing the area of ​​the limiting block 113, further improving the structural stability and bending resistance of the limiting block 113, and preventing the limiting block 113 from bending or breaking due to the impact of the bearing member 2.

[0099] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A camera module, characterized in that, include: A support component used to support the image sensor; A metal cover is provided with a receiving groove. An elongated hole is provided at the connection between the bottom of the receiving groove and the first side wall of the receiving groove. Multiple reinforcing holes are provided on the side wall of the receiving groove. The receiving groove covers the outer wall of the support member. Multiple bosses are provided on the outer wall of the support member. The multiple bosses are respectively located in the elongated hole and the multiple reinforcing holes.

2. The camera module according to claim 1, characterized in that, The first sidewall has a notch at one end away from the bottom of the groove, and the notch contains the boss.

3. The camera module according to claim 1, characterized in that, The camera module also includes: Base assembly; The outer shell is connected to the base assembly, and a receiving cavity is formed between the outer shell and the base assembly. The carrier is slidably disposed in the receiving cavity along a first direction, and the outer shell is provided with a central opening. The lens assembly is fixed inside the central opening of the housing; An image sensor is fixed to the side of the carrier near the base assembly, and the lens assembly is coaxially arranged with the image sensor; A drive module is connected to the carrier and is used to drive the carrier to move along the first direction.

4. The camera module according to claim 3, characterized in that, The driving module includes a magnet assembly and a coil assembly. The magnet assembly is disposed on one side of the carrier. The coil assembly is fixedly disposed in the accommodating cavity and is disposed opposite to the magnet assembly. The coil assembly includes a circuit board, a coil support plate, and a coil arranged sequentially. The coil is fixed on the coil support plate. A first guide wire extends from the inner side of the coil and a second guide wire extends from the outer side. The coil support plate has a first accommodating groove extending through the edge of the coil support plate on the side facing the coil. The first guide wire passes through the first accommodating groove and is electrically connected to the circuit board.

5. The camera module according to claim 4, characterized in that, The outer dimensions of the coil support plate are larger than the outer dimensions of the coil; the coil has a first central hole, and a second central hole is provided on the coil support plate, the size of the second central hole being smaller than the size of the first central hole.

6. The camera module according to claim 5, characterized in that, The coil support plate is made of a soft magnetic metal material, and the shape of the coil support plate is a centrally symmetrical figure; the side of the coil support plate facing the coil is also provided with a second receiving groove, and the first receiving groove and the second receiving groove are symmetrically arranged about the center of the coil support plate or rotated 180 degrees about the axis of the second central hole.

7. The camera module according to claim 6, characterized in that, Both the first receiving groove and the second receiving groove are arc-shaped, and are located diagonally opposite each other on the coil support plate.

8. The camera module according to claim 7, characterized in that, Both the first receiving groove and the second receiving groove include: a first extension section, a second extension section, and an arc-shaped connecting section connecting the first extension section and the second extension section, wherein the included angle between the first extension section and the second extension section is an obtuse angle, and the second extension section passes through the edge of the coil support plate.

9. The camera module according to claim 4, characterized in that, The base assembly includes a base and a fixing member, wherein the fixing member is disposed on the base and located on one side of the base; The support member has a first sliding groove on the side near the fixing member, and the fixing member has a second sliding groove on the side near the support member. A guide member is installed between the first and second sliding grooves to allow the support member and the fixing member to slide together; and / or, The carrier has a first mounting groove on the side near the fixing member, and the magnet assembly is mounted in the first mounting groove; the fixing member has a second mounting groove on the side near the carrier, and the coil assembly is mounted in the second mounting groove; and / or, The carrier includes a movable through-hole that extends longitudinally through the carrier. The image sensor is located below the movable through-hole, and the lens assembly is located above the movable through-hole, with the outer diameter of the lens assembly being smaller than the diameter of the movable through-hole; and / or, The coil assembly further includes a magnetic sensor electrically connected to the circuit board; and / or, The magnet assembly includes a shielding plate and at least one magnet, each of which is fixed to the shielding plate.

10. The camera module according to claim 9, characterized in that, The base and the fastener are separate structures, and the fastener is fixed to the base; The lower end of the first slide groove is provided with a first limiting member, and the upper end of the second slide groove is provided with a second limiting member, which are used to prevent the guide member from sliding out from between the first slide groove and the second slide groove.

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