Prism module, periscopic lens and electronic equipment

Abstract

The utility model discloses a prism module, a periscopic lens and electronic equipment, and belongs to the technical field of mobile terminal cameras. The prism carrier is mounted on the base, and a mounting cavity is formed in the prism carrier; the prism part is mounted in the mounting cavity; the glue joint reinforcing part is mounted on the base, or on the prism carrier, or between the base and the prism carrier, the glue joint reinforcing part is provided with a glue joint surface, the glue joint surface is provided with an inverted buckle forming part, the glue joint surface is at least partially exposed in the cavity space of the mounting cavity, and the inverted buckle forming part is exposed in the cavity space of the mounting cavity; and at least part of the glue layer is arranged between the prism part and the glue joint surface exposed in the cavity space. The inverted buckle forming part not only increases the contact area of the adhesive layer and the carrier, but also realizes mechanical interlocking through an inverted buckle structure formed by the inverted buckle forming part and the adhesive layer, so that the prism can be effectively prevented from falling off under the condition that the weight is increased.

Description

Technical Field

[0001] The present application relates to the technical field of mobile terminal cameras, and in particular to a prism module, a periscope lens and an electronic device. Background Art

[0002] With the rapid development of mobile device camera technology, periscope lenses have become an important part of smartphone camera design because they can provide longer focal lengths without increasing the thickness of the device. In periscope lenses, the prism module, as the core component of the optical system, is responsible for the correct guidance of light and clear transmission of images. However, as the requirements for camera performance increase, the size and weight of the prism module also increase accordingly, which puts higher requirements on the structural stability and bonding performance of the prism module.

[0003] In the prior art, a prism module usually includes a base and a prism carrier, and a mounting cavity for mounting a prism part is provided inside the prism carrier. The fixation of the prism part usually relies on an adhesive layer, which bonds the prism part to the mounting cavity. However, although the LCP (liquid crystal polymer) material commonly used in prism carriers has excellent dustproof properties, its bonding properties are poor, which makes it difficult for traditional bonding methods to meet the stability requirements of large-size prisms. In addition, when the traditional bonding structure is subjected to external forces, such as mechanical vibration or impact, the prism part is easy to fall off, affecting the reliability and image quality of the camera.

[0004] In order to solve this problem, the prior art uses insert molding (IM) technology to strengthen the bonding surface by setting a metal part on the prism carrier side. However, this method not only increases the manufacturing complexity and cost, but also has reliability issues when the prism weight reaches a certain level, that is, the prism part may fall off due to insufficient bonding force. Utility Model Content

[0005] The present application provides a prism module, a periscope lens and an electronic device. The prism module is used to solve the problem that the prism part is easy to fall off and causes the prism module to be unable to work stably.

[0006] To achieve the above purpose, the embodiment of the present application adopts the following technical solution:

[0007] In a first aspect, a prism module is provided. The prism module is used for a periscope lens, and the prism module includes: a base; a prism carrier, which is mounted on the base and has a mounting cavity inside the prism carrier; a prism part, which is mounted in the mounting cavity; a bonding reinforcement part, which is mounted on the base, or on the prism carrier, or between the base and the prism carrier, and the bonding reinforcement part has a bonding surface, and an undercut molding part is arranged on the bonding surface, the bonding surface is at least partially exposed to the cavity space of the mounting cavity, and the undercut molding part is exposed to the cavity space of the mounting cavity; a bonding layer, which is at least partially arranged between the prism part and the bonding surface exposed to the cavity space.

[0008] The prism module provided in the embodiment of the present application is provided with a bonding reinforcement part, especially an undercut molding part of its bonding surface, so that an undercut structure is formed between the adhesive layer and the bonding reinforcement part during processing, which significantly improves the bonding strength and structural stability. It overcomes the limitations of the metal part and the glue bonding in the traditional IM method, and also solves the deficiency of relying solely on the glue storage tank to prevent the prism from falling off. It ensures that during long-term use, even under frequent mechanical vibration or temperature changes, the prism module can maintain the stability of its position and function.

[0009] In one embodiment, the undercut molding part includes a convex part and / or a concave part, and the adhesive layer formed in the undercut molding part area forms an undercut structure with the adhesive reinforcement part. The undercut structure formed by the convex part and / or the concave part of the undercut molding part and the adhesive layer provides additional mechanical interlocking, which not only increases the bonding area, but also enhances the bonding strength through the physical structure. The stability of the prism component when subjected to external force is significantly improved, and the risk of falling off due to vibration or impact is reduced.

[0010] In one embodiment, there are two adhesive reinforcement parts, and the two adhesive reinforcement parts correspond to the side walls on both sides of the installation cavity. By providing an adhesive reinforcement part corresponding to the side walls on both sides of the installation cavity, a uniform support force can be provided on the two opposite sides of the prism carrier, thereby enhancing the structural stability of the entire prism module. The symmetrical configuration helps to evenly disperse the forces caused by external impact or vibration, and reduce the possibility of displacement or deformation of the prism part. At the same time, the provision of two adhesive reinforcement parts allows the adhesive layer to contact the prism part and the prism carrier over a larger surface area, which not only improves the bonding strength, but also further improves the reliability of bonding through the interlocking effect of the undercut structure.

[0011] In one embodiment, the bonding surface is located outside the prism carrier, and a clearance hole is provided on the side wall of at least one side of the installation cavity, and the position of the undercut molding portion corresponds to the position of the clearance hole so as to be exposed to the cavity space through the clearance hole. The provision of multiple groups of recesses and multiple clearance holes allows the adhesive layer to form an undercut structure with the bonding reinforcement portion at multiple points. The multi-point bonding method is more stable than a single bonding method and can more effectively disperse and withstand forces from different directions.

[0012] In one embodiment, the undercut molding part includes multiple groups of recesses and multiple clearance holes, and the multiple groups of recesses correspond to the multiple clearance holes respectively. The arrangement of multiple groups of recesses and multiple clearance holes allows the adhesive layer to form an undercut structure with the adhesive reinforcement part at multiple points. The multi-point bonding method is more stable than single bonding and can more effectively disperse and withstand forces from different directions. As a result, the position of the prism part in the installation cavity can be fixed more accurately, ensuring the precise alignment of the optical element and optimizing the optical performance, thereby ensuring the accuracy of the prism part in guiding light.

[0013] In one embodiment, the plurality of clearance holes include a plurality of first strip-shaped through holes extending along a first direction, and the plurality of first strip-shaped through holes are arranged at intervals along a second direction; a plurality of recesses inside the first strip-shaped through holes are arranged at intervals along the extending direction of the first strip-shaped through holes, wherein a first preset angle is formed between the first direction and the second direction. By means of the first strip-shaped through holes and recesses arranged at intervals along the first direction and the second direction, an undercut structure can be formed at a plurality of points, and the multi-point bonding method is more stable than a single bonding method, and can more effectively disperse and withstand forces from different directions.

[0014] In one embodiment, the plurality of clearance holes further include a plurality of second strip-shaped through holes, the extension direction of the second strip-shaped through holes and the extension direction of the first strip-shaped through holes have a second preset angle, and the plurality of recesses inside the second strip-shaped through holes are arranged at intervals along the extension direction of the second strip-shaped through holes. By introducing the second strip-shaped through holes into the prism module, and the second strip-shaped through holes and the first strip-shaped through holes form a second preset angle, it is helpful to disperse the force in multiple directions and reduce the damage that may be caused by stress concentration.

[0015] In one embodiment, the adhesive surface is completely exposed to the cavity space of the installation cavity. The complete exposure of the adhesive surface allows the adhesive layer to contact the adhesive reinforcement part over a larger surface area, which not only provides a stronger adhesive force, but also helps prevent the prism part from shifting or falling off when subjected to external forces.

[0016] In one embodiment, the undercut molding portion includes a plurality of first strip-shaped recesses extending along a third direction, and the plurality of first strip-shaped recesses are arranged at intervals along a fourth direction, wherein a third preset angle is formed between the third direction and the fourth direction. Through the above arrangement, the contact area of ​​the adhesive surface can be increased, thereby providing a stronger adhesive force. This helps prevent the prism portion from shifting or falling off when subjected to an external force.

[0017] In one embodiment, the undercut molding portion further includes a plurality of second strip-shaped recesses, and the extension direction of the second strip-shaped recesses and the extension direction of the first strip-shaped recesses have a fourth preset angle. Through the above arrangement, the contact area of ​​the adhesive surface can be increased, thereby providing a stronger adhesive force. This helps prevent the prism portion from shifting or falling off when subjected to external force.

[0018] In one embodiment, the undercut molding portion further includes a circular recess. The circular recess is arranged in some scattered areas that are not sufficient to arrange the first strip recess and the second strip recess. The circular recess provides more bonding surfaces, and when combined with the adhesive layer, more bonding points can be formed, thereby providing a stronger bonding force to ensure the stability of the prism portion in the installation cavity.

[0019] In one embodiment, a plurality of first protrusions are arranged inside the first strip-shaped recess, and the plurality of first protrusions are arranged at intervals along the extension direction of the first strip-shaped recess. Not only the total area of ​​the bonding interface is increased, but also more mechanical interlocking points are provided due to the shape and layout of the first protrusions, which can effectively resist the shear force caused by external forces (such as falling or impact), thereby improving the stability and durability of the bonding.

[0020] In one embodiment, a plurality of second protrusions are disposed inside the second strip-shaped recess, and the plurality of second protrusions are disposed at intervals along the extension direction of the second strip-shaped recess, thereby providing more mechanical interlocking points, which can effectively resist shearing forces caused by external forces (such as falling or impact), thereby improving the stability and durability of bonding.

[0021] In one embodiment, a buckle portion is provided on the adhesive reinforcement portion, and the buckle portion is buckled on the side wall of the installation cavity. The buckle portion is buckled on the side wall of the installation cavity, which helps to reduce the displacement and deformation of the prism portion when subjected to external forces, such as falling or impact, and maintain the correct position and performance of the optical element.

[0022] A second aspect of the present application provides a periscope lens, which includes a main body, a lens module installed in the main body, and a prism module movably installed in the main body, wherein the prism module is the above-mentioned prism module, and the prism module also includes a prism motor connected to the base for driving the prism module to approach or move away from the lens module.

[0023] Through the above technical solution, since the periscope lens includes the above-mentioned prism module, it at least has all the beneficial effects of the prism module, which will not be repeated here.

[0024] A third aspect of the present application provides an electronic device, which includes a middle frame, a screen assembly installed on one side of the middle frame, a cover plate installed on the other side of the middle frame, and a periscope lens installed on the middle frame, wherein a lens clearance hole is provided on the cover plate, and the position of the lens clearance hole corresponds to the position of the periscope lens, and the periscope lens is the above-mentioned periscope lens, wherein the electronic device also includes an image sensing part installed on the middle frame, the image sensing part is located at one end of the periscope lens, and light can pass through the optical part to reach the image sensing part.

[0025] Through the above technical solution, since the electronic device includes the above prism module, it at least has all the beneficial effects of the prism module, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a prism module in the prior art;

[0027] Figure 2 It is a schematic diagram of the structure of a prism carrier in the prior art;

[0028] Figure 3 It is a structural schematic diagram of a metal component in the prior art;

[0029] Figure 4 It is a structural schematic diagram of the glue layer in the prior art;

[0030] Figure 5 is a schematic structural diagram of another prism module in the prior art;

[0031] Figure 6 is a schematic structural diagram of another prism carrier in the prior art;

[0032] Figure 7 It is a schematic diagram of the structure of another metal component in the prior art;

[0033] Figure 8 It is a structural schematic diagram of another adhesive layer in the prior art;

[0034] Fig. 9 A schematic structural diagram of a prism module in which only a first strip-shaped through hole is provided on a prism carrier provided in an embodiment of the present application;

[0035] Fig.10 A schematic structural diagram of a prism carrier provided with only a first strip-shaped through hole and an adhesive reinforcement portion provided in an embodiment of the present application;

[0036] Fig.11A schematic structural diagram of a prism carrier provided with only first strip-shaped through holes according to an embodiment of the present application;

[0037] Fig.12 A schematic structural diagram of a bonding reinforcement portion when only a first strip-shaped through hole is provided on the prism carrier provided in an embodiment of the present application;

[0038] Fig.13 A schematic diagram of the structure of the adhesive layer when only the first strip-shaped through hole is provided on the prism carrier provided in the embodiment of the present application;

[0039] Fig.14 A schematic structural diagram of a prism module provided in an embodiment of the present application, in which a first strip-shaped through hole and a second strip-shaped through hole are arranged on a prism carrier;

[0040] Fig.15 A schematic structural diagram of a prism carrier provided with a first strip-shaped through hole and a second strip-shaped through hole and equipped with an adhesive reinforcement portion provided in an embodiment of the present application;

[0041] Fig.16 A schematic structural diagram of a prism carrier provided with a first strip-shaped through hole and a second strip-shaped through hole provided in an embodiment of the present application;

[0042] Fig.17 A schematic structural diagram of a bonding reinforcement portion when a first strip-shaped through hole and a second strip-shaped through hole are provided on the prism carrier provided in an embodiment of the present application;

[0043] Fig.18 A schematic diagram of the structure of the adhesive layer when the first strip-shaped through hole and the second strip-shaped through hole are provided on the prism carrier provided in an embodiment of the present application;

[0044] Fig.19 A schematic structural diagram of a prism module in which the adhesive surfaces of the adhesive reinforcement parts provided in an embodiment of the present application are completely exposed to the cavity space of the installation cavity;

[0045] Fig. 20 A schematic structural diagram of a prism carrier equipped with an adhesive reinforcement part provided in an embodiment of the present application, wherein the adhesive surface of the adhesive reinforcement part is completely exposed to the cavity space of the mounting cavity;

[0046] Fig.21 A schematic diagram of the structure of a prism carrier when the adhesive surfaces of the adhesive reinforcement parts provided in the embodiment of the present application are completely exposed to the cavity space of the installation cavity;

[0047] Fig. 22 A schematic diagram of the structure of the adhesive reinforcement part provided in the embodiment of the present application, in which the adhesive surface is completely exposed to the cavity space of the installation cavity;

[0048] Fig.23A schematic diagram of the structure of the colloid when the adhesive surface of the adhesive reinforcement part provided in the embodiment of the present application is completely exposed to the cavity space inside the installation cavity;

[0049] Fig.24 A schematic structural diagram of a prism module having a recessed portion disposed on a prism carrier provided in an embodiment of the present application;

[0050] Fig.25 A schematic diagram of the structure of a prism carrier provided with a recessed portion and an adhesive reinforcement portion provided in an embodiment of the present application;

[0051] Fig.26 A schematic structural diagram of a prism carrier provided with a recessed portion for giving way provided in an embodiment of the present application;

[0052] Fig. 27 A schematic diagram of the structure of the adhesive reinforcement portion when a recessed portion is provided on the prism carrier provided in an embodiment of the present application;

[0053] Fig.28 A schematic diagram of the structure of the adhesive layer when a recessed portion is provided on the prism carrier provided in an embodiment of the present application;

[0054] Fig.29 A schematic diagram of the structure of a periscope lens provided in an embodiment of the present application;

[0055] Fig.30 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0056] Fig.31 A schematic diagram of the structure of an electronic device from another perspective provided in an embodiment of the present application;

[0057] The meanings of the figures are as follows:

[0058] 10”, base; 20”, prism carrier; 21”, mounting cavity; 30”, prism part; 40”, metal part; 50”, adhesive layer;

[0059] 10. Base;

[0060] 20, prism carrier; 21, mounting cavity; 22, clearance hole; 221, first strip-shaped through hole; 222, second strip-shaped through hole; 23, clearance recess;

[0061] 30. Prism section;

[0062] 40, adhesive reinforcement portion; 41, adhesive surface; 42, undercut molding portion; 421, recess; 422, first strip-shaped recess; 423, second strip-shaped recess; 424, circular recess; 43, buckle portion;

[0063] 50. Adhesive layer; 51. Undercut structure;

[0064] 60. Subject;

[0065] 70. Lens module;

[0066] 80, middle frame;

[0067] 90. Screen assembly;

[0068] 100. Cover plate. DETAILED DESCRIPTION

[0069] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0070] It should be understood that in the description of the present application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inside", "outside", "up", "down", "left", "right", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0071] The terms "first", "second", "third", "fourth", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. For example, the first push part and the second push part are only used to distinguish different push parts, and their order is not limited. The first push part can also be named as the second push part, and the second push part can also be named as the first push part without departing from the scope of the various described embodiments. And the terms "first", "second", "third", "fourth", etc. do not limit the indicated features to be different.

[0072] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically limited.

[0073] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships can exist; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0074] It should be noted that, in the embodiments of the present application, words such as "in one embodiment", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the embodiments of the present application as "in one embodiment", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in one embodiment", "exemplarily", "for example", etc. is intended to present related concepts in a specific way.

[0075] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0076] In the periscope lens in the related art, the prism module is the core component of the optical system, which is responsible for the correct guidance of light and the clear transmission of images. However, with the improvement of the performance requirements of the camera, the size and weight of the prism module also increase accordingly, which puts higher requirements on the structural stability and bonding performance of the prism module. The prism module usually includes a base 10" and a prism carrier 20", and the prism carrier 20" is provided with a mounting cavity 21 for mounting the prism part 30". The fixation of the prism part 30" usually relies on the adhesive layer 50", which bonds the prism part 30" to the mounting cavity 21". However, since the LCP (liquid crystal polymer) material commonly used in the prism carrier 20" has excellent dustproof performance, but its bonding performance is poor, it makes it difficult for traditional bonding methods to meet the stability requirements of large-size prisms. In addition, when the traditional bonding structure is subjected to external forces, such as mechanical vibration or impact, the prism part 30" is easy to fall off, affecting the reliability and image quality of the camera.

[0077] In order to solve this problem, the prior art adopts the insert molding (IM) technology, which strengthens the bonding surface by setting a metal part 40" on the side of the prism carrier 20". However, this method not only increases the manufacturing complexity and cost, but also has reliability problems when the prism weight reaches a certain level, that is, the prism part 30" may fall off due to insufficient bonding force. For this, please refer to Figures 1 to 8As shown, two prior arts using the above methods are shown, both of which have the above-mentioned falling-off problem. The prism module is used in a periscope module, where it should be noted that the prism module is an integrated component, which is usually used in a periscope lens to change the light path or improve the image quality. It contains multiple parts that work together to achieve the desired optical effect.

[0078] See also Fig. 9 , Fig.10 , Fig.14 , Fig.15 , Fig.19 , Fig. 20 , Fig.24 and Fig.25 As shown, the prism module of the embodiment of the present application includes a base 10, a prism carrier 20, a prism part 30, a bonding reinforcement part 40 and a bonding layer 50. The prism carrier 20 is installed on the base 10, and a mounting cavity 21 is arranged inside the prism carrier 20; the prism part 30 is installed in the mounting cavity 21; the bonding reinforcement part 40 is installed on the base 10, or on the prism carrier 20, or between the base 10 and the prism carrier 20, the bonding reinforcement part 40 has a bonding surface 41, and an undercut molding part 42 is arranged on the bonding surface 41, the bonding surface 41 is at least partially exposed to the cavity space of the mounting cavity 21, and the undercut molding part 42 is exposed to the cavity space of the mounting cavity 21; the bonding layer 50 is at least partially arranged between the prism part 30 and the bonding surface 41 exposed to the cavity space, the prism part 30 is bonded by the bonding layer 50, it is bonded to the bonding surface 41, and an undercut structure 51 is formed at the undercut molding part 42. It should be noted that the base 10 is the supporting structure of the prism module, providing stability and structural support for the entire module. The prism carrier 20 is a container or frame for fixing the prism part 30. It is installed on the base 10 and has an internal mounting cavity 21 to accommodate the prism part 30. The prism part 30 is the core component of the prism module and is used to change the propagation path of light. It is made of high optical quality materials to ensure the clarity and accuracy of the image. The adhesive reinforcement part 40 is a reinforcing structure for improving the bonding strength between the prism part 30 and the carrier, which can be installed on the base 10, the prism carrier 20 or between the two, and has a bonding surface 41, which is a part of the bonding reinforcement part 40, used to contact the adhesive layer 50 to enhance the bonding strength.

[0079] See also Figures 10 to 13 , Figures 15 to 18 , Figure 20 to Figure 23As shown, the prism module of the embodiment of the present application provides an innovative solution to the key problem of the bonding performance of the prism and the motor carrier in the periscope lens. In the field of mobile phone cameras, as the optical performance requirements of the periscope module are improved, the size of the prism continues to increase, and the traditional bonding method can no longer meet the demand. In particular, when the LCP material is used as the prism carrier 20, although its dustproof performance is excellent, the bonding performance is affected. The embodiment of the present application is provided with a bonding reinforcement part 40, especially the undercut molding part 42 of its bonding surface 41, so that during the processing, an undercut structure 51 is formed between the adhesive layer 50 and the bonding reinforcement part 40, which significantly improves the bonding strength and structural stability. The undercut molding part 42 not only increases the contact area between the adhesive layer 50 and the carrier, but also realizes mechanical interlocking through the undercut structure 51 formed with the adhesive layer 50, thereby effectively preventing the prism from falling off even when the weight increases. It overcomes the limitations of the bonding of the metal part with the glue in the traditional IM method, and also solves the deficiency of relying solely on the glue storage tank to prevent the prism from falling off.

[0080] In general, the prism module of the embodiment of the present application provides a bonding solution for the periscope lens through the bonding reinforcement part 40, which can not only cope with the increase in the weight of the prism, but also take into account the properties of the LCP material, thereby significantly improving the reliability and optical performance of the entire camera module, and ensuring that during long-term use, even under frequent mechanical vibrations or temperature changes, the prism module can maintain the stability of its position and function.

[0081] See also Figures 9 to 14As shown, specifically, the undercut molding part 42 in the embodiment of the present application includes a convex part and / or a concave part 421, and the adhesive layer 50 formed in the region of the undercut molding part 42 forms an undercut structure 51 with the adhesive reinforcement part 40, wherein the undercut molding part 42 may include multiple convex parts, or may include multiple concave parts 421, or a mixture of multiple convex parts and concave parts 421. Through the above-mentioned arrangement, the undercut structure 51 formed by the convex part and / or concave part 421 of the undercut molding part 42 and the adhesive layer 50 provides additional mechanical interlocking, which not only increases the bonding area, but also enhances the bonding strength through the physical structure. The stability of the prism part 30 when subjected to external force is significantly improved, and the risk of falling off due to vibration or impact is reduced. Among them, by providing the convex part and / or concave part 421 on the adhesive reinforcement part 40, the shape and size of the undercut structure 51 can be flexibly adjusted according to the specific application and design requirements of the prism module to adapt to different bonding and stability requirements. For example, the convex portion may be a circular convexity, a strip convexity, or a wavy convexity. The circular convexity can provide uniform adhesive force, which is suitable for situations where uniform distribution of adhesive strength is required. The strip convexity can provide adhesive force along a specific direction, which helps to enhance the stability of the prism portion 30 in this direction. The wavy convexity can provide more adhesive area, increase adhesive strength, and also help to disperse the force received. The concave portion may be a circular concave portion, a strip convexity, or a wavy concave portion. The circular concave portion can provide uniform adhesive force, which is suitable for situations where uniform distribution of adhesive strength is required. The strip convexity can provide adhesive force along a specific direction, which helps to enhance the stability of the prism portion 30 in this direction. The wavy concave portion can provide more adhesive area, increase adhesive strength, and also help to disperse the force received.

[0082] See also Fig.12 , Fig.17 , Fig. 22 and Fig. 27 As shown, there are two adhesive reinforcement parts 40 in the embodiment of the present application, and the two adhesive reinforcement parts 40 correspond to the side walls on both sides of the installation cavity 21. By arranging an adhesive reinforcement part 40 on the side walls on both sides of the installation cavity 21, a uniform support force can be provided on the two opposite sides of the prism carrier 20, thereby enhancing the structural stability of the entire prism module. The symmetrical configuration helps to evenly disperse the forces caused by external impact or vibration, and reduce the possibility of displacement or deformation of the prism part 30. At the same time, the provision of the two adhesive reinforcement parts 40 allows the adhesive layer 50 to contact the prism part 30 and the prism carrier 20 over a larger surface area, which not only improves the bonding strength, but also further improves the reliability of the bonding through the interlocking effect of the undercut structure 51. Due to the configuration of the two adhesive reinforcement parts 40, the position of the prism part 30 in the installation cavity 21 is more stable, which helps to maintain the precise alignment of the optical path, thereby optimizing the optical performance of the periscope lens.

[0083] See also Fig.12 , Fig.17 , Fig. 22 and Fig. 27 As shown, in one embodiment, two adhesive reinforcement parts 40 are connected by a connecting structure to form a whole, which can provide a larger support area when the prism part 30 is subjected to external force, thereby enhancing the reliability of bonding. At the same time, the adhesive reinforcement part 40 and the connecting structure formed by stamping and bending a steel sheet can simplify the assembly process of the prism module. The steel sheet provides additional mechanical strength, making the adhesive reinforcement part 40 not only more reliable in bonding, but also more solid in physical strength, thereby improving the durability of the entire module.

[0084] Among them, the adhesive reinforcement part 40 can be installed on the base 10, or between the base 10 and the prism carrier 20. In this embodiment, the adhesive surface 41 is located outside the prism carrier 20, and a clearance hole 22 is provided on the side wall of at least one side of the installation cavity 21. The position of the undercut molding part 42 corresponds to the position of the clearance hole 22, so as to be exposed to the cavity space through the clearance hole 22. By arranging the adhesive surface 41 outside the prism carrier 20 and cooperating with the clearance hole 22, the injection process of the adhesive layer 50 can be precisely controlled. During the formation of the adhesive layer 50, the undercut molding part 42 is directly filled, ensuring the perfect fit between the adhesive layer 50 and the undercut molding part 42, thereby providing a stronger bonding force. In addition, the clearance hole 22 enables the undercut molding part 42 to form a continuous structure in the installation cavity 21, which helps to improve the impact resistance and durability of the entire prism module. At the same time, the clearance hole 22 can also allow the adhesive layer 50 to form a convex structure, increase the contact area between the adhesive layer 50 and the prism carrier 20, and limit the prism part 30 to a certain extent, thereby increasing reliability. The undercut molding part 42 provides a stable anchor point through the combination of the clearance hole 22 and the adhesive layer 50, which can keep the position of the prism part 30 stable even under extreme conditions, ensuring that the optical performance is not affected. The adhesive reinforcement part 40 can be installed on the base 10, or between the base 10 and the prism carrier 20, so as to provide sufficient installation space for the adhesive reinforcement part 40 to ensure its installation stability.

[0085] See also Fig.12 , Fig.17 , Fig. 22 and Fig. 27As shown, in order to make the prism carrier 20 and the adhesive reinforcement part 40 more stably fix the prism part 30, the undercut molding part 42 in the embodiment of the present application includes multiple groups of recesses 421, and there are multiple clearance holes 22, and the multiple groups of recesses 421 correspond to the multiple clearance holes 22 respectively. The arrangement of multiple groups of recesses 421 and multiple clearance holes 22 allows the adhesive layer 50 to form an undercut structure 51 with the adhesive reinforcement part 40 at multiple points. The multi-point bonding method is more stable than a single bonding method, and can more effectively disperse and withstand forces from different directions. As a result, the position of the prism part 30 in the mounting cavity 21 can be fixed more accurately, ensuring the precise alignment of the optical elements and optimizing the optical performance, thereby ensuring the accuracy of the prism part 30 in guiding light, especially for the periscope lens of small electronic devices such as mobile phones. A slight deviation may directly lead to a significant reduction in the camera effect of the mobile phone.

[0086] Each group of recesses 421 can be evenly distributed to ensure that the adhesive layer 50 is evenly stressed, thereby improving the stability of the bonding. In order to maintain the balance of the prism part 30, the multiple groups of recesses 421 located in the two adhesive reinforcement parts 40 can be symmetrically arranged, which helps to maintain the stability of the prism part 30 in the installation cavity 21 and avoid deviation caused by uneven adhesive force. By performing stress analysis on the adhesive reinforcement part 40, the areas with the greatest stress can be determined, and more recesses 421 can be arranged in these areas to enhance the bonding strength.

[0087] See also Fig.10 , Fig.11 , Fig.15 and Fig.16 As shown, the multiple clearance holes 22 in the embodiment of the present application include multiple first strip through holes 221 extending along the first direction, and the multiple first strip through holes 221 are arranged at intervals along the second direction; multiple recesses 421 inside the first strip through holes 221 are arranged at intervals along the extension direction of the first strip through holes 221, wherein there is a first preset angle between the first direction and the second direction. By means of the first strip through holes 221 and the recesses 421 arranged at intervals along the first direction and the second direction, an undercut structure 51 can be formed at multiple points, and the multi-point bonding method is more stable than a single bonding method, and can more effectively disperse and withstand forces from different directions. It should be noted that the first direction refers to the path along which the first strip through holes 221 extend in one direction of the prism carrier 20. For example, the prism portion 30 of the periscope lens generally adopts a right triangular prism, and the cross-section in the axial direction is a right triangle. The first direction can be a direction parallel to one of the right-angled sides, and the second direction can be a direction parallel to the other right-angled side. The prism surface where the hypotenuse is located is abutted against the inclined surface in the mounting cavity 21, that is, the prism portion 30 can only move in the first direction or the second direction. In this embodiment, the prism portion 30 can be effectively prevented from moving in the second direction.

[0088] See also Fig.15 and Fig.16 As shown, the plurality of clearance holes 22 in the embodiment of the present application also include a plurality of second strip-shaped through holes 222, and the extension direction of the second strip-shaped through hole 222 and the extension direction of the first strip-shaped through hole 221 have a second preset angle, and the plurality of recesses 421 inside the second strip-shaped through hole 222 are arranged at intervals along the extension direction of the second strip-shaped through hole 222. For example, the prism portion 30 of the periscope lens generally adopts a right triangular prism, and the cross section in the axial direction is a right triangle, the extension direction of the second strip-shaped through hole 222 can be parallel to the direction of one of the right-angled sides, the first direction can be parallel to the direction of the other right-angled side, the second preset angle is a right angle, and the prism surface where the hypotenuse is located abuts against the inclined surface in the mounting cavity 21, that is, the prism portion 30 can only move in the first direction or the second direction. In this embodiment, the above arrangement can not only limit the prism portion 30 from moving in the first direction, but also prevent the prism portion 30 from moving in the second direction. At the same time, by introducing the second strip through hole 222 into the prism module, and the second strip through hole 222 and the first strip through hole 221 forming a second preset angle, it is helpful to disperse the force in multiple directions and reduce the damage that may be caused by stress concentration.

[0089] See also Figures 19 to 28 As shown, in another embodiment, in order to further improve the connection strength between the adhesive reinforcement part 40 and the prism part 30, the adhesive surface 41 in the embodiment of the present application is completely exposed to the cavity space of the installation cavity 21. The complete exposure of the adhesive surface 41 allows the adhesive layer 50 to contact the adhesive reinforcement part 40 over a larger surface area, which not only provides a stronger bonding force, but also helps to prevent the prism part 30 from shifting or falling off when subjected to external forces. At the same time, the complete exposure of the adhesive surface 41 simplifies the application process of the adhesive layer 50, making it easier to ensure the uniform distribution of the adhesive layer 50 when assembling the prism module, reducing the risk of bubbles and uneven bonding. Among them, the adhesive reinforcement part 40 in this embodiment is installed on the prism carrier 20 to ensure that the adhesive surface 41 can be completely exposed to the cavity space.

[0090] See also Fig. 22 and Fig. 27As shown, the undercut molding portion 42 in the embodiment of the present application includes a plurality of first strip-shaped recesses 422 extending along the third direction, and the plurality of first strip-shaped recesses 422 are arranged at intervals along the fourth direction, wherein the third direction and the fourth direction have a third preset angle. Through the above arrangement, the contact area of ​​the bonding surface 41 can be increased, thereby providing a stronger bonding force. It helps to prevent the prism portion 30 from shifting or falling off when subjected to external force. It should be noted that the third direction refers to the path along which the first strip-shaped through hole 221 extends in one direction of the bonding reinforcement portion 40. For example, the prism portion 30 of the periscope lens generally adopts a right triangular prism, and the cross section in the axial direction is a right triangle, the third direction can be a direction parallel to one of the right-angled sides, the fourth direction can be a direction parallel to the other right-angled side, and the prism surface where the hypotenuse is located is against the inclined surface in the mounting cavity 21, that is, the prism portion 30 can only move in the third direction or the fourth direction. In this embodiment, the prism portion 30 can be effectively prevented from moving in the fourth direction.

[0091] See also Fig. 22 and Fig. 27 As shown, the undercut molding portion 42 in the embodiment of the present application also includes a plurality of second strip-shaped recesses 423, and the extension direction of the second strip-shaped recesses 423 and the extension direction of the first strip-shaped recesses 422 have a fourth preset angle. Through the above arrangement, the contact area of ​​the bonding surface 41 can be increased, thereby providing a stronger adhesive force. It helps to prevent the prism portion 30 from shifting or falling off when subjected to external force. For example, the prism portion 30 of the periscope lens generally adopts a right triangular prism, and the cross-section in the axial direction is a right triangle. The extension direction of the second strip-shaped recess 423 can be parallel to the direction of one of the right-angled sides, and the third direction can be parallel to the direction of the other right-angled side. The fourth preset angle is a right angle, and the prism surface where the hypotenuse is located is against the inclined surface in the mounting cavity 21, that is, the prism portion 30 can only move in the third direction or the fourth direction. In this embodiment, the above arrangement can not only limit the movement of the prism portion 30 in the third direction, but also prevent the prism portion 30 from moving in the fourth direction. At the same time, by introducing the second strip-shaped recess 423 into the prism module, and the second strip-shaped recess 423 and the first strip-shaped recess 422 forming a third preset angle, it is helpful to disperse the force in multiple directions and reduce the damage that may be caused by stress concentration.

[0092] See also Fig. 22 and Fig. 27As shown, in the case where a plurality of first strip-shaped recesses 422 and a plurality of second strip-shaped recesses 423 are provided, in order to more effectively utilize the bonding surface 41, the undercut molding portion 42 in the embodiment of the present application further includes a circular recess 424. The circular recess 424 is provided in some scattered areas that are not sufficient to arrange the first strip-shaped recesses 422 and the second strip-shaped recesses 423. The circular recess 424 provides more bonding surfaces. When combined with the adhesive layer 50, more bonding points can be formed, thereby providing stronger bonding force to ensure the stability of the prism portion 30 in the mounting cavity 21. In one embodiment of the present application, the hinged reinforcement portion is a steel plate, and each strip-shaped recess is stamped, that is, strip-shaped protrusions are formed on both sides of the steel plate, and a clearance recess is provided on the side wall of the mounting cavity through the prism carrier. The position of the clearance recess corresponds to the position of each strip-shaped protrusion, and is used to accommodate each strip-shaped protrusion, such as Fig. 22 shown.

[0093] In the embodiment of the present application, a plurality of first protrusions are arranged inside the first strip-shaped recess 422, and the plurality of first protrusions are arranged at intervals along the extension direction of the first strip-shaped recess 422. Among them, the first protrusions are arranged at intervals along the extension direction of the first strip-shaped recess 422 to ensure that the distance between each first protrusion is uniform, which helps to evenly distribute the force on the entire bonding interface, thereby improving the overall stability. The shape of the first protrusion can be diversified, such as round, square or other polygonal shapes, and the first protrusions of different shapes can provide mechanical interlocking in different directions to enhance the multi-directional stability of the bonding. A plurality of first protrusions are arranged inside the first strip-shaped recess 422, and these first protrusions are combined with the adhesive layer 50 to form a complex interlocking structure. Not only the total area of ​​the bonding interface is increased, but also more mechanical interlocking points are provided due to the shape and layout of the first protrusions, which can effectively resist the shear force caused by external forces (such as falling or impact), thereby improving the stability and durability of the bonding.

[0094] In the embodiment of the present application, a plurality of second protrusions are arranged inside the second strip-shaped recess 423, and the plurality of second protrusions are arranged at intervals along the extension direction of the second strip-shaped recess 423. Among them, the second protrusions are arranged at intervals along the extension direction of the first strip-shaped recess 422 to ensure that the distance between each second protrusion is uniform, which helps to evenly distribute the force on the entire bonding interface, thereby improving the overall stability. The shape of the second protrusion can be diversified, such as round, square or other polygons, and the second protrusions of different shapes can provide mechanical interlocking in different directions, thereby enhancing the multi-directional stability of the bonding. The arrangement of the second protrusion not only increases the contact area between the adhesive layer 50 and the prism part 30, but also provides more mechanical interlocking points due to the shape and layout of the protrusion. These interlocking points can effectively resist the shear force caused by external forces (such as falling or impact), thereby improving the stability and durability of the bonding. The interval arrangement of the first protrusion and the second protrusion helps to evenly distribute the force between the prism part 30 and the bonding reinforcement part 40. When the prism module is subjected to external impact, the uniform force distribution can reduce the pressure on a single point, thereby reducing the risk of the adhesive layer 50 breaking or the prism portion 30 being displaced.

[0095] See also Fig. 22 and Fig. 27 As shown, in the above embodiment, the bonding surface 41 is completely exposed to the cavity space of the mounting cavity 21, and the bonding reinforcement part 40 is installed on the prism carrier 20, rather than being supported between the base 10 and the prism carrier 20. In order to ensure the installation stability, the bonding reinforcement part 40 in the embodiment of the present application is provided with a buckle part 43, and the buckle part 43 is clamped on the side wall of the mounting cavity 21. The buckle part 43 can also be covered by injection molding during the processing process. The buckle part 43 provides a non-adhesive fixing method for the prism module. This physical locking mechanism can provide additional stability outside the adhesive layer, thereby improving the bonding reliability of the entire module. The buckle part 43 is clamped on the side wall of the mounting cavity 21, which helps to reduce the displacement and deformation of the prism part 30 when subjected to external forces, such as falling or impact, and maintain the correct position and performance of the optical element.

[0096] See also Fig.12 , Fig.17 , Fig. 22 and Fig. 27As shown, a glue flow groove is provided on the bonding reinforcement part 40 in the embodiment of the present application. The glue flow groove allows excess glue to be discharged during the molding process, which helps to prevent the glue from overflowing and affecting the precision assembly and optical performance of the prism module. The glue flow groove can avoid excessive internal pressure of the glue during the bonding process, help maintain the uniformity of the glue layer 50 and prevent damage to the bonding surface 41. Through the design of the glue flow groove, the flow of the glue can be effectively controlled, and bubbles and defects caused by improper flow of the glue can be reduced, thereby improving the overall quality of the prism module. A more uniform and stable bonding layer is formed between the prism carrier 20 and the base 10. The glue flow groove helps to improve the structural stability of the entire module, especially when subjected to external shock or vibration.

[0097] See also Fig. 22 and Fig. 27 As shown, in one embodiment, there are multiple glue flow grooves, a part of the multiple glue flow grooves extend along the first direction and are arranged at intervals along the second direction, and another part of the multiple glue flow grooves extend along the second direction and are arranged at intervals along the first direction. A molding space for the glue layer 50 is provided at the edge of the side wall of the installation cavity 21. After the glue layer 50 is injected, a glue frame structure can be formed in the molding space for the glue layer 50. The glue frame structure enhances the structural strength of the glue layer 50. At the same time, the contact area with the prism carrier 20 is increased, and the bonding strength is improved. A molding space for the glue layer 50 can be provided at one side edge of the side wall of the installation cavity 21. The molding space for the glue layer 50 can extend along the first direction or along the second direction. In another embodiment, a molding space for the glue layer 50 can also be provided at the adjacent two side edges of the side wall of the installation cavity 21. The two molding spaces for the glue layer 50 are respectively in the first direction and the second direction.

[0098] See also Fig.29 As shown, according to the second aspect of the present application, a periscope lens is provided, the periscope lens includes a main body 60, a lens module 70 installed in the main body 60, and a prism module movably installed in the main body 60, wherein the prism module is the above-mentioned prism module, and the prism module also includes a prism motor, which is connected to the base 10 and is used to drive the prism module to approach or move away from the lens module 70. The prism motor adopts electromagnetic drive, and controls the position of the prism part 30 by electromagnetic induction, thereby adjusting the optical path. In the prism motor, a coil is arranged in the main body 60, and a magnet is arranged on the prism motor. When the coil is energized, the magnet is acted upon by a force in the generated magnetic field, thereby pushing the prism part 30 to move.

[0099] The glue layer 50 in the embodiment of the present application is formed by UV type glue or thermosetting type glue.

[0100] See also Fig.30 and Fig.31As shown, according to the third aspect of the present application, an electronic device is provided, the electronic device includes a middle frame 80, a screen assembly 90 installed on one side of the middle frame 80, a cover plate 100 installed on the other side of the middle frame 80, and a periscope lens installed on the middle frame 80, the periscope lens is installed in a horizontal manner, the horizontal direction is parallel to the width direction or length direction of the middle frame 80 or the surface of the middle frame 80 where the width and length are the same, the periscope lens is the above-mentioned periscope lens, the cover plate 100 is provided with a lens clearance hole 22, the position of the lens clearance hole 22 corresponds to the position of the prism module, wherein the electronic device also includes an image sensor installed on the middle frame 80, the image sensor is located at one end of the periscope lens, and the light passes through the prism part 30 and the lens module 70 in sequence to reach the image sensor. The middle frame 80 is the main body 60 frame of the electronic device, which is used to support and assemble other components. The screen assembly 90 is installed on one side of the middle frame 80, and is usually used to display images or other information. The cover plate 100 is mounted on the other side of the middle frame 80 to protect the internal components or to add beauty to the device. One or more lens clearance holes 22 are provided on the cover plate 100, which are located at specific positions corresponding to the positions of the lens module 70. The image sensing part is another component mounted on the middle frame 80, usually located at one end of the lens module 70. The image sensing part can receive light transmitted through the optical part to capture images or video signals. Among them, the electronic device can be a smart phone, a tablet computer, a laptop computer, a game console, a smart watch, etc.

[0101] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A prism module, characterized in that: The prism module is used for a periscope lens, and the prism module includes: Pedestal; A prism carrier, the prism carrier is mounted on the base, and a mounting cavity is provided inside the prism carrier; A prism portion, the prism portion being mounted in the mounting cavity; A bonding reinforcement portion, the bonding reinforcement portion is mounted on the base, or on the prism carrier, or between the base and the prism carrier, the bonding reinforcement portion has a bonding surface, an undercut molding portion is arranged on the bonding surface, the bonding surface is at least partially exposed to the cavity space of the mounting cavity, and the undercut molding portion is exposed to the cavity space of the mounting cavity; The adhesive layer is at least partially disposed between the prism portion and the adhesive surface exposed to the cavity space.

2. The prism module according to claim 1, characterized in that: The undercut molding portion includes a convex portion and / or a concave portion, and an undercut structure is formed between the adhesive layer formed in the area of ​​the undercut molding portion and the adhesive reinforcement portion.

3. The prism module according to claim 2, characterized in that: There are two adhesive reinforcement parts, and the two adhesive reinforcement parts correspond to the side walls on both sides of the installation cavity respectively.

4. The prism module according to claim 1, characterized in that: The bonding surface is located outside the prism carrier, a clearance hole is provided on the side wall of at least one side of the installation cavity, and the position of the undercut molding portion corresponds to the position of the clearance hole so as to be exposed to the cavity space through the clearance hole.

5. The prism module according to claim 4, characterized in that: The undercut molding portion includes a plurality of groups of recesses, and the plurality of the clearance holes are respectively corresponding to the plurality of the clearance holes.

6. The prism module according to claim 5, characterized in that: The multiple give-way holes include multiple first strip-shaped through holes extending along the first direction, and the multiple first strip-shaped through holes are arranged at intervals along the second direction; the multiple recesses inside the first strip-shaped through holes are arranged at intervals along the extension direction of the first strip-shaped through holes, wherein there is a first preset angle between the first direction and the second direction.

7. The prism module according to claim 6, characterized in that: The plurality of the giving way holes also include a plurality of second strip-shaped through holes, the extension direction of the second strip-shaped through holes and the extension direction of the first strip-shaped through holes have a second preset angle, and the plurality of the recesses inside the second strip-shaped through holes are spaced apart along the extension direction of the second strip-shaped through holes.

8. The prism module according to claim 1, characterized in that: The adhesive surface is completely exposed to the inner space of the installation cavity.

9. The prism module according to claim 8, characterized in that: The undercut forming portion includes a plurality of first strip-shaped recesses extending along a third direction, and the plurality of first strip-shaped recesses are arranged at intervals along a fourth direction, wherein a third preset angle is formed between the third direction and the fourth direction.

10. The prism module according to claim 9, characterized in that: The undercut molding portion further includes a plurality of second strip-shaped recesses, and an extension direction of the second strip-shaped recesses and an extension direction of the first strip-shaped recesses form a fourth preset angle.

11. The prism module according to claim 8 or 9, characterized in that: The undercut molding portion further includes a circular recess.

12. The prism module according to claim 9, characterized in that: A plurality of first protrusions are arranged inside the first strip-shaped recess, and the plurality of first protrusions are arranged at intervals along an extending direction of the first strip-shaped recess.

13. The prism module according to claim 10, characterized in that: A plurality of second protrusions are arranged inside the second strip-shaped recess, and the plurality of second protrusions are arranged at intervals along an extending direction of the second strip-shaped recess.

14. The prism module according to claim 8, characterized in that: The adhesive reinforcement portion is provided with a buckle portion, and the buckle portion is buckled on the side wall of the installation cavity.

15. A periscope lens, characterized in that: The periscope lens includes a main body, a lens module installed in the main body, and a prism module movably installed in the main body, wherein the prism module is the prism module described in any one of claims 1 to 14, and the prism module also includes a prism motor, which is connected to the base and is used to drive the prism module to approach or move away from the lens module.

16. An electronic device, characterized in that: The electronic device includes a middle frame, a screen assembly installed on one side of the middle frame, a cover plate installed on the other side of the middle frame, and a periscope lens installed on the middle frame, wherein the periscope lens is the periscope lens described in claim 15, and a lens clearance hole is provided on the cover plate, and the position of the lens clearance hole corresponds to the position of the prism module, wherein the electronic device also includes an image sensing part installed on the middle frame, and the image sensing part is located at one end of the periscope lens, and light passes through the prism part and the lens module in sequence to reach the image sensing part.

Images