Camera module
By setting slots and limiting slots on the drive carrier and adding protrusions on the lens, the problem of lens easy detachment is solved, thereby improving the reliability and service life of the camera module.
Patent Information
- Application Number
- CN202423129888.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In existing zoom cameras, the connection strength between the lens and the motor is insufficient, making them prone to detachment in situations such as drops or high temperature and humidity, affecting reliability and service life.
Mounting holes are made on the drive carrier, and slots and limiting grooves are set on its inner wall. A boss is provided around the lens. The lens is restricted from coming out by the cooperation of the limiting groove and the boss, while increasing the glue connection area and improving the connection strength.
It effectively prevents the lens from detaching, improves the reliability of the camera module and extends its service life, and enhances the connection strength between the lens and the drive carrier.
Smart Images
Figure CN223666394U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of zoom camera technology, specifically to a camera module. Background Technology
[0002] Currently, in zoomable cameras, the lens is typically glued to a motor drive unit, which then moves the lens to achieve zoom. However, when the camera is dropped or exposed to high temperature and humidity, the adhesive bonding may weaken, causing the lens to detach. This results in poor camera reliability and a shorter lifespan. Utility Model Content
[0003] In view of the above, it is necessary to propose a camera module to improve reliability and extend service life.
[0004] This application provides a camera module including a motor and a lens. The motor includes a housing and a drive carrier. The housing has a first end face and a second end face disposed opposite to each other. The housing has a through hole extending from the first end face toward the second end face. The drive carrier is disposed inside the housing and has a mounting hole coaxially disposed with the through hole. The inner wall of the mounting hole has a slot and a limiting groove. The slot extends axially along the mounting hole and communicates with the side of the drive carrier near the first end face. The limiting groove extends circumferentially along the mounting hole and communicates with the slot. The lens is disposed in the mounting hole. A boss protrudes from the periphery of the lens. The boss abuts against the groove wall of the slot near the second end face, and at least a portion of the boss can move into the limiting groove. The limiting groove cooperates with the boss to prevent the lens from dislodging from the mounting hole.
[0005] The camera module of this application embodiment has a mounting hole for mounting the lens on the drive carrier, a slot and a limiting groove on the inner wall of the mounting hole, and a boss protruding on the periphery of the lens. When the lens is connected to the motor, the limiting groove and the boss cooperate to improve the connection strength between the lens and the drive carrier, limiting the distance the lens can move relative to the drive carrier along the axial direction of the mounting hole. Even if the camera module is dropped or exposed to high temperature and humidity, the limiting groove and the boss can prevent the lens from coming out of the mounting hole, thereby improving the reliability of the camera module and extending its service life. In addition, the slot and the limiting groove can also accommodate adhesive, thereby increasing the connection area between the adhesive and the lens and the drive carrier, further improving the connection strength between the lens and the drive carrier, and further improving the reliability of the camera module and extending its service life.
[0006] In some embodiments, along the extending direction of the through hole, the difference between the width of the limiting groove and the thickness of the portion of the boss that moves into the limiting groove is less than or equal to 0.1 mm.
[0007] In some embodiments, the diameter of the through hole is larger than the diameter of the mounting hole.
[0008] In some embodiments, the drive carrier has a stop portion located on the side of the limiting groove near the first end face, and the stop portion extends to the portion of the through hole located between the first end face and the drive carrier, the stop portion being used to stop the boss.
[0009] In some embodiments, the cross-sectional dimension of the portion of the mounting hole near the first end face gradually increases along the direction from the second end face toward the first end face.
[0010] In some embodiments, the groove wall near the second end face of the card slot is provided with a storage groove that communicates with the limiting groove, and the storage groove is used to store glue.
[0011] In some embodiments, the inner wall of the mounting hole is further provided with an insertion groove, which is located on the side of the limiting groove near the second end face and is connected to the limiting groove and the receiving groove respectively.
[0012] In some embodiments, a glue-filling ring groove for receiving glue is provided around the lens.
[0013] In some embodiments, the inner wall of the mounting hole has an annular protrusion, the annular protrusion being located on the side of the slot away from the first end face, the annular protrusion being directly opposite the glue-filling annular groove and abutting against the peripheral sidewall of the lens.
[0014] In some embodiments, there are multiple slots, limiting grooves, and protrusions. Multiple slots are evenly formed on the inner wall of the mounting hole along the circumference of the mounting hole. Multiple limiting grooves correspond one-to-one with multiple slots. Each limiting groove is connected to the corresponding slot. Multiple protrusions are evenly distributed on the periphery of the lens along the circumference of the lens, and each protrusion corresponds one-to-one with multiple slots. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the camera module provided in the embodiments of this application.
[0016] Figure 2 yes Figure 1 The diagram shows the exploded structure of the camera module.
[0017] Explanation of main component symbols
[0018] Camera module 100, motor 10, housing 11, first end face 111, second end face 112, through hole 113, mounting ring groove 1131, drive carrier 12, mounting hole 121, card slot 1211, limiting groove 1212, storage groove 1213, extension groove 1214, annular protrusion 1215, stop part 122, lens 20, boss 21, potting ring groove 22. Detailed Implementation
[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0020] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.
[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0022] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.
[0023] Please see Figure 1 This application provides a camera module 100 that can be applied to electronic products such as mobile phones and tablets. Obviously, this is not a limitation of this application.
[0024] Please see Figure 1 and Figure 2In this embodiment, the camera module 100 includes a motor 10 and a lens 20.
[0025] The motor 10 includes a housing 11 and a drive carrier 12. The housing 11 has a first end face 111 and a second end face 112 disposed opposite to each other. The housing 11 has a through hole 113 extending from the first end face 111 toward the second end face 112. The drive carrier 12 is disposed inside the housing 11. The drive carrier 12 has a mounting hole 121 coaxially disposed with the through hole 113. The inner wall of the mounting hole 121 has a slot 1211 and a limiting groove 1212. The slot 1211 extends axially along the mounting hole 121 and communicates with the side of the drive carrier 12 near the first end face 111. The limiting groove 1212 extends circumferentially along the mounting hole 121 and communicates with the slot 1211.
[0026] The lens 20 is disposed in the mounting hole 121. A boss 21 protrudes from the periphery of the lens 20. The boss 21 abuts against the groove wall of the slot 1211 near the second end face 112. At least a portion of the boss 21 can be moved into the limiting groove 1212. The limiting groove 1212 and the boss 21 cooperate to limit the lens 20 from being dislodged from the mounting hole 121.
[0027] Specifically, when the lens 20 is connected to the motor 10, the lens 20 is placed in the mounting hole 121, and the boss 21 moves into the limiting groove 1212 through the slot 1211. Then, glue (not shown) is used to bond the lens 20 and the drive carrier 12. Even if the camera module 100 is dropped or in a high temperature and high humidity environment, the connection strength between the lens 20 and the drive carrier 12 is improved by the cooperation between the limiting groove 1212 and the boss 21, which limits the distance that the lens 20 can move relative to the drive carrier 12 along the axial direction of the mounting hole 121. This effectively prevents the lens 20 from coming out of the mounting hole 121, thereby improving the reliability of the camera module 100 and extending its service life. In addition, when using glue to bond the lens 20 and the drive carrier 12, the glue can also be injected into the card slot 1211 and the limiting slot 1212, thereby increasing the connection area between the glue and the lens 20 and the drive carrier 12, thereby improving the connection strength between the lens 20 and the drive carrier 12, and further improving the reliability of the camera module 100 and extending its service life.
[0028] In this embodiment, the motor 10 can be a voice coil motor. Understandably, the motor 10 also includes components such as a stator (not shown), a coil (not shown), and a magnet (not shown) disposed within the housing 11. The drive carrier 12 is movably disposed on the stator, and the coil and magnet are respectively disposed on the stator and the drive carrier 12. When the coil is energized, the coil drives the magnet and the drive carrier 12 to move through electromagnetic induction, thereby causing the drive carrier 12 to drive the lens 20 to move to adjust the focal length. Since the voice coil motor is a mature technology, it will not be described in detail here.
[0029] In this embodiment, there are multiple slots 1211, limiting grooves 1212, and protrusions 21. Multiple slots 1211 are evenly opened on the inner wall of the mounting hole 121 along the circumference of the mounting hole 121. Multiple limiting grooves 1212 are also evenly opened on the inner wall of the mounting hole 121 along the circumference of the mounting hole 121. Each limiting groove 1212 corresponds to a slot 1211. Each limiting groove 1212 is connected to the corresponding slot 1211. Multiple protrusions 21 are evenly arranged on the periphery of the lens 20 along the circumference of the lens 20. Each protrusion 21 corresponds to a slot 1211.
[0030] When the lens 20 is connected to the motor 10, multiple limiting grooves 1212 cooperate with multiple bosses 21 to restrict the lens 20 from being dislodged from the mounting hole 121 from multiple positions, thereby further improving the connection strength between the lens 20 and the drive carrier 12, and further improving the reliability of the camera module 100 and extending its service life.
[0031] In this embodiment, the number of slots 1211, limiting grooves 1212 and bosses 21 can be three, four, five, etc. Specifically, the number of slots 1211, limiting grooves 1212 and bosses 21 can be increased or decreased according to the size of lens 20 and mounting hole 121. This application embodiment does not make specific limitations in this regard.
[0032] In this embodiment, the boss 21 is trapezoidal in shape, and the cross-sectional shape of the slot 1211 is approximately the same as that of the boss 21. In other embodiments, the boss 21 may also be rectangular, arc-shaped, etc., and this application does not specifically limit this.
[0033] In this embodiment, the groove wall of the slot 1211 near the second end face 112 is parallel to and connected to the groove wall of the limiting groove 1212 near the second end face 112. Along the circumference of the mounting hole 121, the length of the limiting groove 1212 is less than the length of the boss 21. When the lens 20 is connected to the motor 10, the boss 21 moves through the slot 1211 to a position directly opposite the limiting groove 1212. Then, the lens 20 is rotated, and a portion of the boss 21 extends into the limiting groove 1212.
[0034] In some other embodiments, the length of the limiting groove 1212 along the circumference of the mounting hole 121 may be greater than or equal to the length of the boss 21. When the lens 20 is connected to the motor 10, the boss 21 moves completely into the limiting groove 1212. This application embodiment does not specifically limit this.
[0035] In this embodiment, along the extending direction of the through hole 113, the difference between the width of the limiting groove 1212 and the thickness of the portion of the boss 21 that moves into the limiting groove 1212 is less than or equal to 0.1 mm. Thus, the engagement between the limiting groove 1212 and the portion of the boss 21 that moves into the limiting groove 1212 reduces the distance the lens 20 moves relative to the drive carrier 12 along the axial direction of the mounting hole 121. After the limiting groove 1212 is filled with adhesive, it effectively restricts the movement of the lens 20 relative to the drive carrier 12 along the axial direction of the mounting hole 121, thereby improving the reliability of the camera module 100 and extending its service life.
[0036] In this embodiment, the diameter of the through hole 113 is larger than the diameter of the mounting hole 121. This facilitates the mounting of the lens 20 into the mounting hole 121 through the through hole 113 without disassembling the housing 11.
[0037] In this embodiment, an assembly ring groove 1131 is provided inside the through hole 113, and the assembly ring groove 1131 is located between the first end face 111 and the drive carrier 12. By providing the assembly ring groove 1131, it is convenient to install other components of the motor 10 or connect it to external components.
[0038] Please refer to it again. Figure 2 In this embodiment, the driving carrier 12 has a stop portion 122, which is located on the side of the limiting groove 1212 near the first end face 111. The stop portion 122 extends to the portion of the through hole 113 located between the first end face 111 and the driving carrier 12. The stop portion 122 is used to stop the boss 21. Specifically, the stop portion 122 is block-shaped, and the side wall of the stop portion 122 near the limiting groove 1212 is one groove wall of the limiting groove 1212. By providing a stop portion 122 extending to the portion of the through hole 113 located between the first end face 111 and the drive carrier 12, when the boss 21 moves into the slot 1211, the stop portion 122 stops the boss 21 from one side, thereby facilitating the alignment of the boss 21 with the slot 1211 and its rapid movement into the slot 1211. Furthermore, this design increases the size and structural strength of the stop portion 122, thereby improving the stability of the stop portion 122 in stopping the boss 21.
[0039] In this embodiment, the cross-sectional dimension of the portion of the mounting hole 121 near the first end face 111 gradually increases along the direction from the second end face 112 toward the first end face 111. Thus, the portion of the mounting hole 121 near the first end face 111 is funnel-shaped, which facilitates the rapid insertion of the lens 20 into the mounting hole 121.
[0040] In this embodiment, the groove wall of the slot 1211 near the second end face 112 is provided with a receiving groove 1213 that communicates with the limiting groove 1212. The receiving groove 1213 is used to receive adhesive. This helps to increase the adhesive connection area between the boss 21 and the driving carrier 12, thereby further improving the connection strength between the lens 20 and the driving carrier 12, and further improving the reliability of the camera module 100 and extending its service life.
[0041] In this embodiment, the inner wall of the mounting hole 121 is also provided with an insertion groove 1214. The insertion groove 1214 is located on the side of the limiting groove 1212 near the second end face 112 and is connected to the limiting groove 1212 and the receiving groove 1213 respectively. By providing the insertion groove 1214, the glue needle (not shown) can inject glue into the card slot 1211, the limiting groove 1212 and the receiving groove 1213 through the insertion groove 1214, thereby improving the convenience of injecting glue into the card slot 1211, the limiting groove 1212 and the receiving groove 1213. In addition, the provision of the insertion groove 1214 facilitates the processing and molding of the limiting groove 1212 and the stop part 122 by injection molding, CNC machining or other methods.
[0042] In this embodiment, it can be understood that when there are multiple card slots 1211 and multiple limiting slots 1212, there are also multiple stop portions 122, multiple receiving slots 1213 and multiple insertion slots 1214, each corresponding to one of the multiple card slots 1211.
[0043] Please refer to it again. Figure 2 In this embodiment, a glue-filling ring groove 22 for collecting glue is provided on the periphery of the lens 20. This increases the glue connection area between the lens 20 and the drive carrier 12, thereby further improving the connection strength between the lens 20 and the drive carrier 12, and further improving the reliability of the camera module 100 and extending its service life.
[0044] In this embodiment, an annular protrusion 1215 protrudes from the inner wall of the mounting hole 121. The annular protrusion 1215 is located on the side of the slot 1211 away from the first end face 111. The annular protrusion 1215 is directly opposite the potting groove 22 and abuts against the peripheral sidewall of the lens 20. Specifically, the inner diameter of the annular protrusion 1215 is approximately the same as the outer diameter of the lens 20. The annular protrusion 1215 abuts against and seals the potting groove 22, allowing the glue needle to inject glue into the potting groove 22 through the groove 1214. Thus, by providing the annular protrusion 1215, the amount of glue overflowing from the potting groove 22 is reduced, making the connection between the lens 20 and the drive carrier 12 more secure, thereby improving the reliability of the camera module 100 and extending its service life.
[0045] In summary, the camera module 100 of this application embodiment has a mounting hole 121 for mounting the lens 20 on the drive carrier 12, a slot 1211 and a limiting groove 1212 on the inner wall of the mounting hole 121, and a boss 21 protruding on the periphery of the lens 20. When the lens 20 is connected to the motor 10, the limiting groove 1212 and the boss 21 cooperate to improve the connection strength between the lens 20 and the drive carrier 12, and limit the distance that the lens 20 can move relative to the drive carrier 12 along the axial direction of the mounting hole 121. Even if the camera module 100 is dropped or in a high temperature and high humidity environment, the cooperation between the limiting groove 1212 and the boss 21 can prevent the lens 20 from coming out of the mounting hole 121, thereby improving the reliability of the camera module 100 and extending its service life. In addition, the card slot 1211 and the limiting slot 1212 can also hold the glue, thereby increasing the connection area between the glue and the lens 20 and the driving carrier 12, thereby improving the connection strength between the lens 20 and the driving carrier 12, and further improving the reliability of the camera module 100 and extending its service life.
[0046] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.
Claims
1. A camera module, characterized in that, include: A motor includes a housing and a drive carrier. The housing has a first end face and a second end face disposed opposite to each other. The housing has a through hole extending from the first end face toward the second end face. The drive carrier is disposed within the housing and has a mounting hole coaxially disposed with the through hole. The inner wall of the mounting hole has a retaining groove and a limiting groove. The retaining groove extends axially along the mounting hole and communicates with the side of the drive carrier near the first end face. The limiting groove extends circumferentially along the mounting hole and communicates with the retaining groove. A lens is disposed in the mounting hole, and a boss is provided on the periphery of the lens. The boss abuts against the groove wall of the slot near the second end face, and at least a portion of the boss can be moved into the limiting groove. The limiting groove and the boss cooperate to prevent the lens from being dislodged from the mounting hole.
2. The camera module as described in claim 1, characterized in that, Along the extension direction of the through hole, the difference between the width of the limiting groove and the thickness of the portion of the boss that moves into the limiting groove is less than or equal to 0.1 mm.
3. The camera module as described in claim 1, characterized in that, The diameter of the through hole is larger than the diameter of the mounting hole.
4. The camera module as described in claim 3, characterized in that, The driving carrier has a stop portion located on the side of the limiting groove near the first end face, and the stop portion extends to the portion of the through hole located between the first end face and the driving carrier, the stop portion being used to stop the boss.
5. The camera module as described in claim 3, characterized in that, The cross-sectional dimension of the portion of the mounting hole near the first end face gradually increases along the direction from the second end face toward the first end face.
6. The camera module as described in claim 1, characterized in that, The groove wall near the second end face of the card slot is provided with a storage groove that communicates with the limiting groove. The storage groove is used to store glue.
7. The camera module as described in claim 6, characterized in that, The inner wall of the mounting hole is also provided with an insertion groove, which is located on the side of the limiting groove near the second end face and is connected to the limiting groove and the receiving groove respectively.
8. The camera module as described in claim 1, characterized in that, The lens has a filling ring groove around its periphery for collecting glue.
9. The camera module as described in claim 8, characterized in that, The inner wall of the mounting hole has an annular protrusion. The annular protrusion is located on the side of the slot away from the first end face. The annular protrusion is directly opposite the glue-filling groove and abuts against the peripheral side wall of the lens.
10. The camera module as described in claim 1, characterized in that, The number of the card slots, the limiting grooves, and the protrusions are all multiple. The multiple card slots are evenly opened on the inner wall of the mounting hole along the circumference of the mounting hole. The multiple limiting grooves correspond one-to-one with the multiple card slots. Each limiting groove is connected to the corresponding card slot. The multiple protrusions are evenly arranged on the periphery of the lens along the circumference of the lens, and the multiple protrusions correspond one-to-one with the multiple card slots.