Manufacturing method of a reflection module and its bracket, and camera module

Abstract

The present invention discloses a manufacturing method of a reflection module and its bracket, and an imaging module. The reflection module includes: a carrier for carrying a reflection element; a bracket fixedly connected to the carrier. The bracket includes a first support portion, a second support portion and a side portion integrally connected. The first support portion extends in a plane perpendicular to the first direction, the second support portion extends in a plane perpendicular to the second direction, and the side portion extends in a plane parallel to the first direction and the second direction. The first support portion is used for carrying a first lens, and the second support portion is used for carrying a second lens, so that the reflection element is arranged between the first lens and the second lens; a reinforcing member integrally formed on the bracket. The reinforcing member includes a first reinforcing portion and a second reinforcing portion. The first reinforcing portion is at least partially embedded in the first support portion and extends in a plane perpendicular to the first direction, and the second reinforcing portion is at least partially embedded in the side portion and extends in a plane parallel to the first direction and the second direction.

Description

Technical Field

[0001] The present invention relates to the technical field of camera modules, and in particular to a manufacturing method of a reflection module and its bracket, and a camera module. Background Art

[0002] A camera module is an essential part of a mobile electronic device. With the further development of camera module technology, users' requirements for camera modules have become increasingly refined. A periscope camera module usually needs to achieve complex light turning and reflection within a limited space to realize a high-magnification zoom function. Therefore, the stability and reliability of the reflection module are crucial for the performance of the entire periscope camera module. If the bracket of the reflection module is prone to deformation when subjected to external forces, it will affect the focusing of light, the refraction angle, and the final imaging quality.

[0003] In the related art, the reflection module of a periscope camera module usually adopts an L-shaped plastic bracket. However, the plastic bracket has low structural strength. When the periscope camera module is subjected to external forces, the plastic bracket is prone to deformation or even breakage, thereby affecting the imaging quality of the periscope camera module. In addition, the plastic bracket is prone to shrinkage deformation during the injection molding process, which not only affects the assembly accuracy of the reflection module but also may cause deviation of the light propagation path, thereby resulting in difficult assembly of the camera module, low production efficiency, and reduced imaging quality of the camera module. Summary of the Invention

[0004] An object of the present invention is to provide a reflection module, the bracket of which has high structural strength, is beneficial to resisting external forces, reduces the risk of deformation of the bracket, and improves the stability and reliability of the reflection module.

[0005] Another object of the present invention is to provide a manufacturing method of a bracket for manufacturing the bracket of the above reflection module.

[0006] Another object of the present invention is to provide a camera module having the above reflection module.

[0007] To achieve at least one of the above objects, the technical solution adopted by the present invention is as follows: A reflection module, comprising: a carrier for carrying a reflection element, the reflection element being configured to reflect light propagating in a first direction to propagate in a second direction; a bracket fixedly connected to the carrier, the bracket including an integrally connected first support portion, a second support portion and a side portion, the first support portion extending in a plane perpendicular to the first direction, the second support portion extending in a plane perpendicular to the second direction, and the side portion extending in a plane parallel to the first direction and the second direction to connect and support the first support portion and the second support portion, wherein the first support portion is used for carrying a first lens, and the second support portion is used for carrying a second lens, so that the reflection element is disposed between the first lens and the second lens; a reinforcing member integrally formed on the bracket, wherein the reinforcing member includes a first reinforcing portion and a second reinforcing portion, the first reinforcing portion is at least partially embedded in the first support portion and extends in a plane perpendicular to the first direction, and the second reinforcing portion is bent from the first reinforcing portion along the first direction and extends in a plane parallel to the first direction and the second direction, and the second reinforcing portion is at least partially embedded in the side portion.

[0008] As a preference, the side portion includes a first side portion and a second side portion spaced apart along a third direction to connect and support opposite sides of the first support portion and the second support portion along the third direction, the second reinforcing portion includes a first side surface portion and a second side surface portion extending in a plane perpendicular to the third direction, the first side surface portion and the second side surface portion are integrally connected to the first reinforcing portion respectively, the first side surface portion is at least partially embedded in the first side portion, and the second side surface portion is at least partially embedded in the second side portion, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0009] As a preference, a connecting portion is defined at the intersection of the first support portion and the second support portion; the first support portion includes a first cross beam, and a first side beam and a second side beam respectively connected to the first cross beam, the first cross beam is spaced apart from the connecting portion along the second direction, the first cross beam, the first side beam, the connecting portion and the second side beam are sequentially connected to form a first installation cavity extending in a plane perpendicular to the first direction, and the first lens is disposed in the first installation cavity; the first reinforcing portion includes a first frame and a second frame spaced apart along the second direction, the first frame is at least partially embedded in the first cross beam, and the second frame is at least partially embedded in the connecting portion.

[0010] As a preference, the first framework integrally connects the first side portion and the second side portion, the second framework integrally connects the first side portion and the second side portion, and the first side portion and the second side portion are bent and extended along a first direction from the plane where the first framework and the second framework are located.

[0011] As a preference, at least a part of the first framework is exposed on the first cross beam, and the part of the first framework exposed on the first cross beam extends towards the first installation cavity along a second direction and forms the edge of the first installation cavity.

[0012] As a preference, the first cross beam extends along the first direction and is fixed to the carrier. The thickness of the first framework along the first direction is less than the thickness of the first cross beam along the first direction. The part of the first framework exposed on the first cross beam and the first cross beam form a receiving space. The reflecting element includes a first end close to the first supporting portion and a second end close to the second supporting portion, and the first end of the reflecting element extends into the receiving space.

[0013] As a preference, both the first side portion and the second side portion include hollowed - out regions. The first side part passes through the hollowed - out region of the first side portion, and the second side part passes through the hollowed - out region of the second side portion.

[0014] As a preference, the first side part and the second side part respectively include positioning protrusions, and the positioning protrusions extend along a third direction from the first side part and the second side part; the carrier includes a first carrier side wall and a second carrier side wall respectively corresponding to the first side part and the second side part, and the first carrier side wall and the second carrier side wall are respectively provided with positioning grooves, and the positioning grooves are adapted to accommodate the positioning protrusions to adjust the relative positions of the bracket and the carrier during the assembly process.

[0015] As a preference, the reinforcing member further includes a third reinforcing portion extending in a plane perpendicular to the second direction, and at least part of the third reinforcing portion is embedded in the second supporting portion. Wherein, the plane where the third reinforcing portion is located is perpendicular to the plane where the first reinforcing portion is located, and the plane where the third reinforcing portion is located is perpendicular to the plane where the second reinforcing portion is located.

[0016] As a preference, the second support part includes a second cross beam, a third side beam and a fourth side beam respectively connected to the second cross beam. The second cross beam is spaced from the connecting part in a first direction. The second cross beam, the third side beam, the connecting part and the fourth side beam are sequentially connected to form a second installation cavity which extends in a plane perpendicular to a second direction. The second lens is disposed in the second installation cavity; at least part of the third reinforcing part is embedded in the third side beam and / or the fourth side beam.

[0017] As a preference, the third reinforcing part is integrally connected to the first side part and the second side part, and the third reinforcing part bends and extends along a third direction from the plane where the first side part and the second side part are located.

[0018] As a preference, the third reinforcing part is integrally connected to the second framework, and the third reinforcing part bends and extends along a first direction from the plane where the second framework is located.

[0019] As a preference, the reflection module further includes a reflection layer which is covered on the outer surface of the reinforcing member exposed to the bracket, and the reflection layer is made of a low-reflection material.

[0020] To achieve at least one of the above objects, the technical solution adopted by the present invention is: a manufacturing method of a bracket for manufacturing the bracket of the reflection module as described in any one of the above, including the following steps:

[0021] a. Provide a metal strip which includes a plurality of reinforcing members. The reinforcing members include a first reinforcing part and a second reinforcing part, and the second reinforcing part bends along a first direction from the first reinforcing part;

[0022] b. Implant the metal strip into a mold, and perform injection molding on the first reinforcing part and the second reinforcing part so that the masterbatch coats at least a part of the first reinforcing part and at least a part of the second reinforcing part to form a plurality of brackets. Among them, the brackets include a first support part, a second support part and a side part which are integrally connected. The first support part coats at least a part of the first reinforcing part, and the side part coats at least a part of the second reinforcing part;

[0023] c. Cut the brackets and the metal strip so that the brackets are separated from each other, and each bracket is embedded with the reinforcing member.

[0024] As a preference, the manufacturing method further includes step a1. The reinforcing member further includes a third reinforcing portion, which is connected to the first reinforcing portion and bent from the first reinforcing portion along a first direction and / or connected to the second reinforcing portion and bent from the second reinforcing portion along a third direction; step b1, injecting plastic into the first reinforcing portion, the second reinforcing portion and the third reinforcing portion, so that the masterbatch coats at least a part of the first reinforcing portion, at least a part of the second reinforcing portion and at least a part of the third reinforcing portion to form the bracket, wherein the second support portion coats at least a part of the third reinforcing portion.

[0025] To achieve at least one of the above objects, the technical solution adopted by the present invention is: An imaging module, comprising: the reflection module as described in any one of the above; a lens module, which is held on the light reflection path of the reflection module; a photosensitive module, which is configured to receive light and perform imaging; a base body, which has a receiving cavity, and the reflection module and the lens module are arranged in the receiving cavity; and a housing, which covers the base body.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] (1) The first support portion, the second support portion and the side portion of the bracket are integrally connected, and the side portion can support the first support portion and the second support portion. Therefore, when the bracket is subjected to an external force, due to the support of the side portion, it is beneficial to reduce the risk of deformation of the first support portion and the second support portion. The first support portion and the second support portion can more reliably carry the first lens and the second lens, reduce the influence on the relative positions of the first lens, the reflection element and the second lens, and improve the stability and reliability of the reflection module.

[0028] (2) The first reinforcing portion of the reinforcing member is embedded in the first support portion, which is beneficial to improve the structural strength of the first support portion, so that the first support portion can more stably and reliably carry the first lens; the second reinforcing portion of the reinforcing member is embedded in the side portion, which is beneficial to improve the structural strength of the side portion. Further, the side portion can more reliably support the first support portion and the second support portion, which is beneficial to further reduce the risk of deformation of the first support portion and the second support portion, and further improve the stability and reliability of the reflection module. Description of the Drawings

[0029] Figure 1 is a three-dimensional structural schematic diagram of a reflection module according to some embodiments of the present application.

[0030] Figure 2 is an exploded view of a reflection module according to some embodiments of the present application.

[0031] Figure 3 Schematic perspective view of a bracket according to some embodiments of the present application.

[0032] Figure 4 Schematic perspective view of a reinforcement member according to some embodiments of the present application.

[0033] Figure 5 Cross-sectional view of a reflection module according to some embodiments of the present application.

[0034] Figure 6 Cross-sectional view of a reinforcement member embedded in a bracket according to some embodiments of the present application.

[0035] Figure 7 Schematic perspective view of a reinforcement member according to some other embodiments of the present application.

[0036] Figure 8 Schematic perspective view of a reinforcement member embedded in a bracket according to some embodiments of the present application.

[0037] Figure 9 Schematic perspective view of a carrier according to some embodiments of the present application.

[0038] Figure 10 Cross-sectional view of an imaging module according to some embodiments of the present application.

[0039] In the figure: 1, reflection module; 10, carrier; 11, first carrier side wall; 12, second carrier side wall; 13, positioning groove; 20, bracket; 21, first support portion; 211, first installation cavity; 212, first cross beam; 213, first side beam; 214, second side beam; 22, second support portion; 221, second installation cavity; 222, second cross beam; 223, third side beam; 224, fourth side beam; 23, connection portion; 24, side portion; 241, first side portion; 242, second side portion; 243, positioning projection; 25, accommodation space; 26, bracket edge; 30, reinforcement member; 31, first reinforcement portion; 311, first skeleton; 312, second skeleton; 32, second reinforcement portion; 321, first side surface portion; 322, second side surface portion; 33, third reinforcement portion; 331, first vertical surface portion; 332, second vertical surface portion; 34, hollowed-out area; 35, cutting portion; 36, fixing portion; 37, reinforcement edge; 41, reflection element; 411, first end; 412, second end; 42, first lens; 43, second lens; 2, imaging module; 50, lens module; 51, first lens group; 52, second lens group; 60, photosensitive module; 71, base body; 711, accommodation cavity; 72, housing. Detailed implementation manners

[0040] Next, in combination with specific embodiments, the present invention will be further described. It should be noted that, on the premise of non-conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0041] In the description of the present invention, it should be noted that for orientation terms, such as the terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationships are based on the orientation or position relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0043] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0044] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or connected by contact or indirectly through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] A reflection module 1, such as Figures 1 - 9As shown, it includes a carrier 10, a bracket 20, and a reinforcing member 30. The carrier 10 is used to carry a reflection element 41, and the reflection element 41 is used to reflect the light propagating in the first direction to propagate in the second direction. The bracket 20 is fixedly connected to the carrier 10. The bracket 20 includes a first support portion 21, a second support portion 22, and a side portion 24 that are integrally connected. The first support portion 21 extends in a plane perpendicular to the first direction, the second support portion 22 extends in a plane perpendicular to the second direction, and a connecting portion 23 is defined at the intersection of the first support portion 21 and the second support portion 22. The side portion 24 extends in a plane parallel to the first direction and the second direction to connect and support the first support portion 21 and the second support portion 22. The first support portion 21 is used to carry a first lens 42, and the second support portion 22 is used to carry a second lens 43, so that the reflection element 41 is disposed between the first lens 42 and the second lens 43. The reinforcing member 30 is integrally formed on the bracket 20. The reinforcing member 30 includes a first reinforcing portion 31 and a second reinforcing portion 32. The first reinforcing portion 31 is at least partially embedded in the first support portion 21 and extends in a plane perpendicular to the first direction. The second reinforcing portion 32 is bent from the first reinforcing portion 31 along the first direction and extends in a plane parallel to the first direction and the second direction. The second reinforcing portion 32 is at least partially embedded in the side portion 24.

[0046] It should be understood that, as Figure 3 shown, the first support portion 21, the second support portion 22, and the side portion 24 of the bracket 20 are integrally connected, and the side portion 24 can support the first support portion 21 and the second support portion 22. Thus, when the bracket 20 is subjected to an external force, due to the support of the side portion 24, it is beneficial to reduce the risk of deformation of the first support portion 21 and the second support portion 22. The first support portion 21 and the second support portion 22 can more reliably carry the first lens 42 and the second lens 43, reduce the influence of the external force on the relative positions of the first lens 42, the reflection element 41, and the second lens 43, and reduce the influence of the external force on the shapes and optical properties of the first lens 42 and the second lens 43, thereby improving the stability and reliability of the reflection module 1.

[0047] Specifically, as Figure 3As shown, during the assembly process and the use process of the camera module 2, the first support portion 21 of the bracket 20 of the reflection module 1 is liable to be subjected to a force F1 in the first direction, and the second support portion 22 is liable to be subjected to a force F2 in the second direction. As a result, the first support portion 21 and the second support portion 22 will tend to rotate around the connecting portion 23 and move closer to each other, and even deform. That is to say, if the side portion 24 does not play a supporting role, then under the condition that the bracket 20 is subjected to the forces F1 and F2, it is difficult for the first support portion 21 to remain in the plane perpendicular to the first direction, and it is difficult for the second support portion 22 to remain in the plane perpendicular to the second direction. Further, the first lens 42 carried on the first support portion 21 and the second lens 43 carried on the second support portion 22 will also rotate, move, and deform, and the actual relative positions of the first lens 42, the reflection element 41, and the second lens 43 will deviate from the preset ideal positions, resulting in the deviation of the light propagation path from the preset ideal path, and ultimately affecting the imaging quality of the camera module 2.

[0048] In this embodiment, as Figure 3 shown, the side portion 24 can play a supporting role for the first support portion 21 and the second support portion 22. Under the condition that the bracket 20 is subjected to the forces F1 and F2, the supporting forces of the side portion 24 on the first support portion 21 and the second support portion 22 can counteract the forces F1 and F2, and thus it is beneficial to avoid the tendency of the first support portion 21 and the second support portion 22 to rotate around the connecting portion 23 and move closer to each other. That is to say, through the supporting role of the side portion 24, it is beneficial to keep the first support portion 21 in the plane perpendicular to the first direction, and it is beneficial to keep the second support portion 22 in the plane perpendicular to the second direction. Further, the actual positions of the first lens 42, the reflection element 41, and the second lens 43 can be made to coincide with or approach the preset ideal positions, so that the light propagation path coincides with or approaches the preset ideal path, improving the stability and reliability of the reflection module 1, and thus being beneficial to improving the imaging quality of the camera module 2.

[0049] It should be understood that the force F1 in the first direction includes but is not limited to: the gravity of the first lens 42, the impact force of the housing 72 on the first support portion 21 when the camera module 2 drops, and the external extrusion force; the force F2 in the second direction includes but is not limited to: the collision force of the lens module 50 on the second support portion 22 when the lens module 50 moves, and the extrusion force between the second support portion 22 and the lens module 50 during assembly.

[0050] It should be understood that the first reinforcing portion 31 of the reinforcing member 30 is embedded in the first supporting portion 21, which is beneficial to improving the hardness and structural strength of the first supporting portion 21, making the first supporting portion 21 more stable and reliable in carrying the first lens 42; the second reinforcing portion 32 of the reinforcing member 30 is embedded in the side portion 24, which is beneficial to improving the hardness and structural strength of the side portion 24, so that the side portion 24 can more reliably support the first supporting portion 21 and the second supporting portion 22, which is beneficial to further reducing the risk of deformation of the first supporting portion 21 and the second supporting portion 22, and further improving the stability and reliability of the reflection module 1.

[0051] It is worth mentioning that the material of the reinforcing member 30 includes but is not limited to: stainless steel, copper, aluminum alloy, titanium alloy, zinc alloy, etc. It should be understood that the material of the bracket 20 is plastic, and the shrinkage rate of plastic is usually higher than that of metal. Without the reinforcing member 30, the dimensional stability of the bracket 20 during the injection molding process is poor, and it is easy to deform, which will affect the installation of the first lens 42 and the second lens 43. In addition, it may also affect the assembly accuracy between the bracket 20 and the carrier 10.

[0052] In this embodiment, the reinforcing member 30 made of metal is embedded in the bracket 20, which is beneficial to reducing the shrinkage and deformation of the bracket 20 during the injection molding process, and improving the dimensional stability and overall flatness of the bracket 20. Further, the reinforcing member 30 made of metal has higher machining accuracy. Under the condition that the bracket 20 is injection molded on the reinforcing member 30, the bracket 20 can inherit the accuracy of the reinforcing member 30, thereby improving the dimensional accuracy and flatness of the bracket 20, which is beneficial to keeping the first supporting portion 21 in a plane perpendicular to the first direction, and beneficial to keeping the second supporting portion 22 in a plane perpendicular to the second direction.

[0053] In some embodiments, as Figure 3 and Figure 4 shown, the side portion 24 includes a first side portion 241 and a second side portion 242 arranged at intervals along the third direction to connect and support the opposite sides of the first supporting portion 21 and the second supporting portion 22 along the third direction. The second reinforcing portion 32 includes a first side surface portion 321 and a second side surface portion 322 extending in a plane perpendicular to the third direction. The first side surface portion 321 and the second side surface portion 322 are integrally connected to the first reinforcing portion 31 respectively. The first side surface portion 321 is at least partially embedded in the first side portion 241, and the second side surface portion 322 is at least partially embedded in the second side portion 242, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0054] That is to say, the first support portion 21 and the second support portion 22 are perpendicular to each other, including that the plane where the first support portion 21 is located and the plane where the second support portion 22 is located form a 90° angle, or approach 90°, for example, form an angle between 85° and 95°. The first support portion 21 has two side edges oppositely arranged along the third direction, and the second support portion 22 also has two side edges oppositely arranged along the third direction. Further, the first side portion 241 is connected to one side edge of the first support portion 21 and one side edge of the second support portion 22, and the second side portion 242 is connected to the other side edge of the first support portion 21 and the other side edge of the second support portion 22. Thus, the first support portion 21 and the second support portion 22 can be reliably supported by the first side portion 241 and the second side portion 242.

[0055] It is worth mentioning that the plane where the first side portion 241 is located and the plane where the second side portion 242 is located respectively form a 90° angle, or approach 90°, for example, form an angle between 85° and 95° with the plane where the first support portion 21 is located. The plane where the first side portion 241 is located and the plane where the second side portion 242 is located respectively form a 90° angle, or approach 90°, for example, form an angle between 85° and 95° with the plane where the second support portion 22 is located. That is to say, a right-angle connection structure can be formed among the first support portion 21, the first side portion 241, and the second support portion 22, and a right-angle connection structure can also be formed among the first support portion 21, the second side portion 242, and the second support portion 22. Thus, it is beneficial to transfer and disperse the force on the bracket 20 in three mutually perpendicular directions, enabling the bracket 20 to have good self-supportability, improving the load-bearing capacity of the bracket 20, and further being beneficial to improving the stability and reliability of the reflection module 1.

[0056] In some embodiments, as Figure 3 and Figure 4 shown, the first support portion 21 includes a first cross beam 212, and a first side beam 213 and a second side beam 214 respectively connected to the first cross beam 212. The first cross beam 212 is spaced apart from the connecting portion 23 along the second direction. The first cross beam 212, the first side beam 213, the connecting portion 23, and the second side beam 214 are sequentially connected to form a first installation cavity 211. The first installation cavity 211 extends in a plane perpendicular to the first direction. The first lens 42 is disposed in the first installation cavity 211 so that light enters the reflection module 1 through the first lens 42 and the first installation cavity 211; the first strengthening portion 31 includes a first framework 311 and a second framework 312 spaced apart along the second direction. At least part of the first framework 311 is embedded in the first cross beam 212, and at least part of the second framework 312 is embedded in the connecting portion 23.

[0057] It should be understood that the first side beam 213 is connected to the first side portion 241, and the second side beam 214 is connected to the second side portion 242. Thus, the first side beam 213 and the second side beam 214 are supported by the first side portion 241 and the second side portion 242, which helps to prevent the first side beam 213 and the second side beam 214 from bending deformation due to the acting force F1. Further, at least a part of the first skeleton 311 is embedded in the first cross beam 212, which helps to improve the hardness and structural strength of the first cross beam 212; at least a part of the second skeleton 312 is embedded in the connecting portion 23, which helps to improve the hardness and structural strength of the connecting portion 23. Consequently, the risk of deformation of the first support portion 21 due to the acting force F1 is reduced, and the first lens 42 can be carried more reliably and stably, which helps to keep the first lens 42 in a preset ideal position and improve the stability and reliability of the reflection module 1.

[0058] It is worth mentioning that without the second skeleton 312, the structural strength of the connecting portion 23 of the bracket 20 is relatively low. When the reflection module 1 drops, the position where the connecting portion 23 is located may break. In addition, due to the large size of the connecting portion 23, during the injection molding process of the bracket 20, the connecting portion 23 will generate a large shrinkage deformation, which will cause deformation of the first support portion 21 and the second support portion 22, affecting the structure and optical performance of the first lens 42 and the second lens 43, and even affecting the performance of the entire optical system of the camera module 2, ultimately resulting in a reduction in imaging quality.

[0059] In this embodiment, by embedding the second skeleton 312 in the connecting portion 23, not only the structural strength of the connecting portion 23 is improved, but also during the injection molding process of the bracket 20, the shrinkage deformation of the connecting portion 23 can be reduced or even avoided, which helps to keep the first support portion 21 in a plane perpendicular to the first direction and helps to keep the second support portion 22 in a plane perpendicular to the second direction. Further, the actual positions of the first lens 42 and the second lens 43 can coincide or approach coincidence with the preset ideal positions, reducing the influence of the bracket 20 on the structure and optical performance of the first lens 42 and the second lens 43, and thus helping to improve the imaging quality of the camera module 2.

[0060] In some embodiments, as Figure 4 shown, the first skeleton 311 integrally connects the first side portion 321 and the second side portion 322, the second skeleton 312 integrally connects the first side portion 321 and the second side portion 322, and the first side portion 321 and the second side portion 322 bend and extend along the first direction from the plane where the first skeleton 311 and the second skeleton 312 are located.

[0061] It should be understood that both the first frame 311 and the second frame 312 extend along the third direction to connect the first side portion 321 and the second side portion 322. Compared with the disconnection between the first frame 311, the second frame 312, the first side portion 321, and the second side portion 322, in this embodiment, the first frame 311 and the second frame 312 are connected between the first side portion 321 and the second side portion 322, so that the reinforcing member 30 forms an integrally bent connection, which is convenient for fixing the reinforcing member 30 during the injection molding process of the bracket 20 and reduces the manufacturing difficulty of the bracket 20.

[0062] In addition, the first side portion 321, the first frame 311, the second frame 312, and the second side portion 322 are integrally bent and connected, so that the reinforcing member 30 can bear the acting forces along the first direction and the third direction at the same time, and the force is more dispersed, which is beneficial to improving the rigidity and stability of the reinforcing member 30; the reinforcing member 30 with a bent structure is also beneficial to releasing stress through the bent part, and then the reinforcing member 30 has better anti-vibration performance and anti-impact performance.

[0063] In some embodiments, such as Figure 5 and Figure 8 shown, at least a part of the first frame 311 is exposed on the first cross beam 212. The part of the first frame 311 exposed on the first cross beam 212 extends along the second direction towards the first mounting cavity 211 and forms the edge of the first mounting cavity 211. This is beneficial to improving the hardness and structural strength of the edge of the first mounting cavity 211, reducing the risk of deformation of the edge of the first mounting cavity 211 due to force, and at the same time is also beneficial to improving the dimensional accuracy of the edge of the first mounting cavity 211, thereby reducing the influence of the processing error of the bracket 20 on the installation of the first lens 42.

[0064] In at least one embodiment, the first cross beam 212 extends along the first direction and is fixed to the carrier 10. The thickness of the first frame 311 along the first direction is less than the thickness of the first cross beam 212 along the first direction. The part of the first frame 311 exposed on the first cross beam 212 and the first cross beam 212 form a receiving space 25. The reflecting element 41 includes a first end 411 close to the first support portion 21 and a second end 412 close to the second support portion 22. The first end 411 of the reflecting element 41 extends into the receiving space 25.

[0065] It should be understood that if the first cross beam 212 completely covers the first skeleton 311, that is to say, the part of the first skeleton 311 exposed in the first installation cavity 211 is also covered by the first cross beam 212, it will cause the first cross beam 212 to occupy the accommodation space 25, and then it will be difficult for the accommodation space 25 to have enough space to accommodate the first end 411 of the reflection element 41, which may cause the imaging quality of the camera module 2 to decrease or the volume of the reflection module 1 to increase.

[0066] In this embodiment, as Figure 5 shown, the thickness of the first skeleton 311 in the first direction is less than the thickness of the first cross beam 212 in the first direction. Combining with the part of the first skeleton 311 exposed from the first cross beam 212 extending towards the first installation cavity 211 in the second direction, the supporting area of the first skeleton 311 for the first lens 42 can be increased, and the reliability of fixing the first lens 42 to the bracket 20 and the reinforcing member 30 can be improved. At the same time, the first cross beam 212 can avoid the first end 411 of the reflection element 41, and the accommodation space 25 can have enough space to accommodate the first end 411 of the reflection element 41. Then, the first end 411 of the reflection element 41 can extend into the accommodation space 25, which is beneficial to making the structure of the reflection module 1 more compact, reducing the volume of the reflection module 1, especially beneficial to reducing the size of the reflection module 1 in the first direction, reducing the height of the camera module 2. In addition, it is also beneficial to increase the reflection area of the reflection element 41 on the basis of keeping the reflection module 1 having a small volume, and then increasing the light passing amount and improving the brightness and clarity of imaging.

[0067] In at least one embodiment, the thickness of the first skeleton 311 or the entire reinforcing member 30 is 0.1 mm to 0.2 mm, which is beneficial to reducing the occupied space of the first skeleton 311 in the accommodation space 25. Further, the distance between the first end 411 of the reflection element 41 and the first skeleton 311 in the first direction is 0.25 mm to 0.3 mm, which is not only beneficial to avoiding interference between the reflection element 41 and the first skeleton 311 and causing damage to the reflection element 41, but also making the structure of the reflection module 1 more compact.

[0068] In at least one embodiment, the projection of the first skeleton 311 in the first direction and the projection of the reflection element 41 in the first direction at least partially overlap. That is to say, between the part of the first skeleton 311 exposed in the first installation cavity 211 and the first end 411 of the reflection element 41, at least part of them are misaligned and overlapped in the second direction. The reflection element 41 can be arranged closer to the carrier 10 in the second direction, which is beneficial to reducing the size of the reflection module 1 in the second direction and reducing the length of the camera module 2.

[0069] In some embodiments, as Figure 8As shown, the top surfaces of the first skeleton 311 and the second skeleton 312 are both exposed to the first support portion 21, and the top surfaces of the first skeleton 311 and the second skeleton 312 are coplanar. That is to say, the plane where the top surfaces of the first skeleton 311 and the second skeleton are located is perpendicular to the first direction, that is, the top surface of the first strengthening portion 31 is exposed to the first support portion 21, so as to carry and fix the first lens 42. It should be understood that compared with the injection-molded bracket 20, the first strengthening portion 31 made of metal has higher processing accuracy and better flatness. Therefore, under the condition that the first lens 42 is mounted on the top surface of the first strengthening portion 31, it is beneficial to avoid the influence of the assembly and the molding accuracy of the bracket 20 on the first lens 42, further reduce the risk of deformation of the first lens 42, and improve the stability and reliability of the reflection module 1. It is worth mentioning that under the condition that the first lens 42 is mounted on the top surface of the first strengthening portion 31, the first lens 42 inherits the flatness of the first strengthening portion 31, which is beneficial to avoid the first lens 42 from tilting and affecting the propagation path of light after passing through the first lens 42. Furthermore, it is beneficial to avoid affecting the performance of the optical system of the camera module 2, improve the reliability and stability of the reflection module 1, and improve the imaging quality of the camera module 2.

[0070] In some embodiments, as Figure 4 shown, both the first side portion 321 and the second side portion 322 include a hollowed-out area 34, the first side portion 241 passes through the hollowed-out area 34 of the first side portion 321, and the second side portion 242 passes through the hollowed-out area 34 of the second side portion 322.

[0071] It should be understood that by setting the hollowed-out area 34, the weight of the strengthening member 30 can be reduced, and thus the total weight of the reflection module 1 can be reduced, which is beneficial to improving the driving speed and driving accuracy of the reflection module 1; in addition, it is also beneficial to reduce the driving force required to drive the reflection module 1, and thus the size of the motor used to drive the reflection module 1 can be reduced, which is beneficial to realizing the miniaturization of the camera module 2.

[0072] Furthermore, the first side portion 241 of the bracket 20 passes through the hollowed-out area 34 of the first side portion 321, and the second side portion 242 passes through the hollowed-out area 34 of the second side portion 322, which is beneficial to increasing the bonding area between the bracket 20 and the strengthening member 30, improving the connection strength between the bracket 20 and the strengthening member 30, and reducing the risk of relative movement between the bracket 20 and the strengthening member 30. It is worth mentioning that through the hollowed-out area 34 of the strengthening member 30, the first side portion 241 and the second side portion 242 of the bracket 20 can also be separated into several regions, which is beneficial to further reducing the risk of shrinkage deformation of the bracket 20 during injection molding.

[0073] In some embodiments, as Figure 6As shown, on the side of the side portion 24 away from the first support portion 21 along the first direction, there is a bracket edge 26. On the side of the second reinforcing portion 32 away from the first reinforcing portion 31 along the first direction, there is a reinforcing edge 37. The bracket edge 26 is parallel to the reinforcing edge 37, and the distance H between the bracket edge 26 and the reinforcing edge 37 is 0.1 mm to 0.5 mm.

[0074] It should be understood that if the distance H between the bracket edge 26 and the reinforcing edge 37 is too large, the first side portion 241 of the bracket 20 is not fully filled by the first side portion 321 of the reinforcing member 30, and the second side portion 242 of the bracket 20 is not fully filled by the second side portion 322 of the reinforcing member 30, which may result in uneven distribution of the structural strength on the first side portion 241 and the second side portion 242. That is to say, the structural strength on the side of the first side portion 241 away from the first support portion 21 is weak. Similarly, the structural strength on the side of the second side portion 242 away from the first support portion 21 is also weak. Thus, when subjected to external forces, it is prone to deformation and breakage, and may even cause deformation of the first support portion 21 and the second support portion 22, affecting the shape and optical performance of the first lens 42 and the second lens 43.

[0075] If the distance H between the bracket edge 26 and the reinforcing edge 37 is too small, it may lead to too small a runner on the side of the first side portion 241 away from the first support portion 21 and too small a runner on the side of the second side portion 242 away from the first support portion 21 during the injection molding process of the bracket 20, which is not conducive to the filling of the masterbatch, and may thus cause defects such as broken edges and holes.

[0076] In this embodiment, the distance H between the bracket edge 26 and the reinforcing edge 37 is 0.1 mm to 0.5 mm, which is beneficial to fully filling the side portion 24 of the bracket 20 with the second reinforcing portion 32 of the reinforcing member 30, reducing the weak points of the first side portion 241 and the second side portion 242, and improving the uniformity of the structural strength of the first side portion 241 and the second side portion 242. In addition, during the injection molding process of the bracket 20, it is beneficial to fully fill the cavity of the mold with the masterbatch, reducing the processing defects of the bracket 20, and thus improving the qualified rate of the finished product of the bracket 20. In at least one embodiment, the distance H between the bracket edge 26 and the reinforcing edge 37 is 0.3 mm.

[0077] In some embodiments, such as Figure 4As shown, the reinforcing member 30 further includes a plurality of cutting portions 35. At least one of the cutting portions 35 extends from the side of the first frame 311 in the second direction towards the side away from the second frame 312, and at least one other cutting portion 35 extends from the side of the second frame 312 in the second direction towards the side away from the first frame 311. Further, the cutting portion 35 on the first frame 311 of one reinforcing member 30 is adapted to be connected to the cutting portion 35 on the second frame 312 of another reinforcing member 30, so that a plurality of reinforcing members 30 are connected in sequence to form a strip. Further, by injecting plastic into the strip-shaped plurality of reinforcing members 30, the production efficiency of the bracket 20 can be improved. It should be understood that after the bracket 20 is injection-molded, the cutting portion 35 is cut to separate each bracket 20 from the reinforcing member 30, so as to realize the mass production of the bracket 20.

[0078] In some embodiments, as Figure 4 shown, the reinforcing member 30 further includes a fixing portion 36. The fixing portion 36 is connected to the side of the first frame 311 and / or the side of the second frame 312. The fixing portion 36 bends and extends in the first direction from a plane perpendicular to the first direction, so that the reinforcing member 30 is hooked to the bracket 20, thereby improving the structural strength, stability and reliability of the bracket 20. It should be understood that the fixing portion 36 can be connected to the side of the first frame 311 facing the second frame 312, or can be connected to the side of the first frame 311 away from the second frame 312 to improve the connection strength between the first frame 311 and the first cross beam 212. Similarly, the fixing portion 36 can be connected to the side of the second frame 312 facing the first frame 311, or can be connected to the side of the second frame 312 away from the first frame 311 to improve the connection strength between the second frame 312 and the connecting portion 23, which is beneficial to avoiding the risk of loosening between the reinforcing member 30 and the bracket 20 due to different shrinkage rates.

[0079] In some embodiments, as Figure 7 shown, the reinforcing member 30 further includes a third reinforcing portion 33 extending in a plane perpendicular to the second direction. The third reinforcing portion 33 is at least partially embedded in the second support portion 22, thereby improving the structural strength of the second support portion 22, which is beneficial to keeping the second support portion 22 in a plane perpendicular to the second direction, reducing the risk of deformation of the second support portion 22, and further reducing the influence of the deformation of the second support portion 22 on the shape and optical performance of the second lens 43, so as to improve the reliability and stability of the reflection module 1. Among them, the plane where the third reinforcing portion 33 is located is perpendicular to the plane where the first reinforcing portion 31 is located, and the plane where the third reinforcing portion 33 is located is perpendicular to the plane where the second reinforcing portion 32 is located.

[0080] In some embodiments, as Figure 3As shown, the second support portion 22 includes a second cross beam 222, and a third side beam 223 and a fourth side beam 224 respectively connected to the second cross beam 222. The second cross beam 222 and the connecting portion 23 are spaced apart in the first direction. The second cross beam 222, the third side beam 223, the connecting portion 23, and the fourth side beam 224 are sequentially connected to form a second installation cavity 221. The second installation cavity 221 extends in a plane perpendicular to the second direction. The second lens 43 is disposed in the second installation cavity 221 so that light exits from the reflection module 1 through the second lens 43 and the second installation cavity 221; at least a part of the third reinforcing portion 33 is embedded in the third side beam 223 and / or the fourth side beam 224.

[0081] It should be understood that the third side beam 223 is connected to the first side portion 241, and the fourth side beam 224 is connected to the second side portion 242. Thus, the third side beam 223 and the fourth side beam 224 can be supported by the first side portion 241 and the second side portion 242, which is beneficial to avoiding bending deformation of the third side beam 223 and the fourth side beam 224 due to the acting force F2. Further, at least a part of the third reinforcing portion 33 is embedded in the third side beam 223, which is beneficial to improving the hardness and structural strength of the third side beam 223, and / or at least a part of the third reinforcing portion 33 is embedded in the fourth side beam 224, which is beneficial to improving the hardness and structural strength of the fourth side beam 224; thereby reducing the risk of deformation of the second support portion 22 due to the acting force F2, enabling the second lens 43 to be carried more reliably and stably, being beneficial to keeping the second lens 43 in a preset ideal position, and improving the stability and reliability of the reflection module 1.

[0082] It is worth mentioning that the second lens 43 has a high sensitivity. That is to say, the deformation of the second support portion 22 will have a great impact on the shape and optical performance of the second lens 43. In this embodiment, the accuracy and structural strength of the second support portion 22 are improved through the third reinforcing portion 33, and during the injection molding process of the bracket 20, shrinkage deformation of the second support portion 22 can be reduced or even avoided, which is beneficial to keeping the second support portion 22 in a plane perpendicular to the second direction, improving the flatness of the second support portion 22, reducing the influence of the processing error of the bracket 20 on the installation of the second lens 43, and being beneficial to keeping the shape and optical performance of the second lens 43 within a preset range.

[0083] In some embodiments, as Figure 7 shown, the third reinforcing portion 33 is integrally connected to the first side surface portion 321 and the second side surface portion 322, and the third reinforcing portion 33 bends and extends along the third direction from the plane where the first side surface portion 321 and the second side surface portion 322 are located.

[0084] Specifically, the third reinforcing part 33 includes a first vertical surface part 331 and a second vertical surface part 332. Among them, the first vertical surface part 331 is connected to the first side surface part 321 and bends and extends along the third direction from the first side surface part 321 so as to be embedded in the third side beam 223. The second vertical surface part 332 is connected to the second side surface part 322 and bends and extends along the third direction from the second side surface part 322 so as to be embedded in the fourth side beam 224. Thus, the structural strength of the second support part 22 is improved through the third reinforcing part 33.

[0085] In some embodiments, the third reinforcing part 33 is integrally connected to the second skeleton 312, and the third reinforcing part 33 bends and extends along the first direction from the plane where the second skeleton 312 is located.

[0086] Specifically, the third reinforcing part 33 includes a first vertical surface part 331 and a second vertical surface part 332. Among them, the first vertical surface part 331 is connected to one end of the second skeleton 312 close to the first side surface part 321 and bends and extends along the first direction from the second skeleton 312 so as to be embedded in the third side beam 223. The second vertical surface part 332 is connected to one end of the second skeleton 312 close to the second side surface part 322 and bends and extends along the first direction from the second skeleton 312 so as to be embedded in the fourth side beam 224. Thus, the structural strength of the second support part 22 is improved through the third reinforcing part 33.

[0087] In some embodiments, as Figure 7 shown, the third reinforcing part 33 includes a hollowed-out area 34, and the second support part 22 of the bracket 20 passes through the hollowed-out area 34 of the third reinforcing part 33. It should be understood that by providing the hollowed-out area 34, the weight of the reinforcing member 30 can be reduced, and then the total weight of the reflection module 1 can be reduced, which is beneficial to improving the driving speed and driving accuracy of the reflection module 1; in addition, it is also beneficial to reduce the driving force required to drive the reflection module 1, and then the size of the motor used to drive the reflection module 1 can be reduced, which is beneficial to realizing the miniaturization of the camera module 2.

[0088] Furthermore, the second support part 22 of the bracket 20 passes through the hollowed-out area 34 of the third reinforcing part 33, which is beneficial to further increasing the bonding area between the bracket 20 and the reinforcing member 30, improving the connection strength between the bracket 20 and the reinforcing member 30, and reducing the risk of relative movement between the bracket 20 and the reinforcing member 30. It is worth mentioning that through the hollowed-out area 34 of the reinforcing member 30, the second support part 22 of the bracket 20 can also be separated into several areas, which is beneficial to further reducing the risk of shrinkage deformation of the bracket 20 during injection molding.

[0089] In some embodiments, as Figure 8As shown, the reflection module 1 further includes a reflection layer, which is covered on the outer surface of the reinforcement member 30 exposed to the bracket 20, and the reflection layer is made of a low-reflection material. It should be understood that since the reinforcement member 30 is made of metal, the outer surface of the reinforcement member 30 exposed to the bracket 20 may reflect light, thereby generating stray light, which has an adverse effect on the imaging of the imaging module 2. In this embodiment, by covering the outer surface of the reinforcement member 30 exposed to the bracket 20 with a reflection layer, it is beneficial to prevent the stray light reflected by the reinforcement member 30 from entering the reflection module 1 through the first lens 42 and from entering the subsequent optical system from the reflection module 1, thereby improving the imaging quality of the imaging module 2.

[0090] Specifically, the outer surface of the reinforcement member 30 exposed to the bracket 20 includes, but is not limited to, the top surfaces of the first skeleton 311 and the second skeleton 312 described above, the top, bottom, and side surfaces of the part of the first skeleton 311 exposed to the first cross beam 212. In addition, during the injection molding process of the bracket 20 with the reinforcement member 30, the reinforcement member 30 may be clamped and fixed by clamping jaws. After the bracket 20 is injection molded, the part of the reinforcement member 30 that fits with the clamping jaws will be exposed to the outside from the groove on the bracket 20. It should be understood that these parts also need to be covered with a reflection layer. It is worth mentioning that when there are exposed parts of the reinforcement member 30 on the side part 24 of the bracket 20 or on the second support part 22 of the bracket 20, a reflection layer also needs to be covered.

[0091] It should be understood that the low-reflection material includes, but is not limited to, ink, black paint, etc., and the present application does not make specific limitations on this. Further, the surface of the bracket 20 can also be treated by processes such as sandblasting, etching, coating, etc. to increase the roughness of the surface of the bracket 20, thereby reducing the reflection of light by the bracket 20.

[0092] In some embodiments, as Figure 1 、 Figure 3 and Figure 9 shown, the first side part 241 and the second side part 242 respectively include positioning protrusions 243, and the positioning protrusions 243 extend from the first side part 241 and the second side part 242 along the third direction; the carrier 10 includes a first carrier side wall 11 and a second carrier side wall 12 corresponding to the first side part 241 and the second side part 242 respectively, and positioning grooves 13 are respectively provided on the first carrier side wall 11 and the second carrier side wall 12, and the positioning grooves 13 are adapted to accommodate the positioning protrusions 243 to adjust the relative positions of the bracket 20 and the carrier 10 during the assembly process.

[0093] Specifically, when the bracket 20 is installed on the carrier 10, glue can be applied between the positioning groove 13 and the positioning protrusion 243 and pre-cured first, so that the bracket 20 and the carrier 10 are pre-bonded. It should be understood that before pre-bonding, the relative positions of the bracket 20 and the carrier 10 can be adjusted, that is, the relative positions of the first lens 42 and the second lens 43 on the bracket 20 and the reflection element 41 on the carrier 10 can be adjusted. After pre-curing, since the bracket 20 and the carrier 10 are not completely bonded and fixed, the relative positions of the bracket 20 and the carrier 10 can also be finely adjusted, so that the relative positions of the first lens 42, the second lens 43 and the reflection element 41 are closer to the preset positions. Further, glue is replenished between the positioning groove 13 and the positioning protrusion 243. Further, glue is replenished between the first cross beam 212 of the bracket 20 and the carrier 10 and completely cured, so that the bracket 20 and the carrier 10 are reliably bonded and fixed.

[0094] It should be understood that if the bracket 20 and the carrier 10 are bonded and cured at one time, it will be difficult to remedy the deviation of the relative positions between the bracket 20 and the carrier 10, which may lead to an increase in the rejection rate and an increase in the manufacturing cost. In addition, during the one-time bonding process, the volume of the glue is large, and during the curing and shrinking process of the glue, the bracket 20 and the carrier 10 are pulled, which further increases the risk of the bracket 20 shifting relative to the carrier 10.

[0095] In this embodiment, through the positioning groove 13 and the positioning protrusion 243, it is beneficial to reduce the positioning difficulty during the assembly of the bracket 20 and the carrier 10 and improve the assembly efficiency. Further, through the relative position adjustment before pre-curing and the relative position fine adjustment after pre-curing, it is beneficial to further improve the accuracy of the relative positions between the first lens 42, the second lens 43 and the reflection element 41, reduce the influence of the assembly on the shapes and optical properties of the first lens 42 and the second lens 43, and thus is beneficial to improving the optical performance of the reflection module 1.

[0096] A manufacturing method of a bracket 20 for manufacturing the bracket 20 of the above-mentioned reflection module 1, comprising the following steps:

[0097] a. Provide a metal strip, the metal strip includes a plurality of reinforcing members 30, the reinforcing members 30 include a first reinforcing portion 31 and a second reinforcing portion 32, and the second reinforcing portion 32 is bent from the first reinforcing portion 31 along the first direction;

[0098] b. Insert the metal strip into the mold and inject plastic into the first reinforcing part 31 and the second reinforcing part 32 so that the matrix material coats at least a part of the first reinforcing part 31 and at least a part of the second reinforcing part 32 to form a plurality of brackets 20. The bracket 20 includes a first supporting part 21, a second supporting part 22 and a side part 24 which are integrally connected. The first supporting part 21 coats at least a part of the first reinforcing part 31, and the side part 24 coats at least a part of the second reinforcing part 32.

[0099] c. Cut the brackets 20 and the metal strip so that the brackets 20 are separated from each other, and each bracket 20 is embedded with a reinforcing member 30.

[0100] It should be understood that before bending, the first reinforcing part 31 and the second reinforcing part 32 are in the same plane, making the strip in a roll shape for easy storage. In step a, the strip is bent so that the first side part 321 and the second side part 322 of the second reinforcing part 32 are bent from the first reinforcing part 31 along the first direction, so that the first reinforcing part 31 extends in a plane perpendicular to the first direction, and the first side part 321 and the second side part 322 each extend in a plane perpendicular to the third direction.

[0101] In step b, a plurality of reinforcing members 30 are continuously inserted into the cavity of the mold in the form of a strip, and the matrix material is injected into the cavity and cooled and solidified to form the brackets 20. The first supporting part 21 of the bracket 20 coats at least a part of the first reinforcing part 31, the first side part 241 coats at least a part of the first side part 321, and the second side part 242 coats at least a part of the second side part 322. Further, through processes such as ejecting and demolding, semi-finished products of a plurality of brackets 20 in the form of a strip are obtained.

[0102] In step c, the brackets 20 in the form of a strip are cut, for example, the cutting part 35 between two adjacent brackets 20 described above is cut so that the plurality of brackets 20 are separated from each other to form finished products of the brackets 20, thereby realizing the mass production of the brackets 20.

[0103] In some embodiments, the manufacturing method further includes step a1. The reinforcing member 30 further includes a third reinforcing part 33. The third reinforcing part 33 is connected to the first reinforcing part 31 and is bent from the first reinforcing part 31 along the first direction and / or is connected to the second reinforcing part 32 and is bent from the second reinforcing part 32 along the third direction.

[0104] That is to say, before bending, the first reinforcing portion 31, the second reinforcing portion 32, and the third reinforcing portion 33 are located in the same plane, making the strip-shaped material in a reel shape, which is convenient for storage. In step a1, the strip-shaped material is bent so that the first side portion 321 and the second side portion 322 of the second reinforcing portion 32 are bent from the first reinforcing portion 31 along the first direction, and the first vertical surface portion 331 and the second vertical surface portion 332 of the third reinforcing portion 33 are bent from the first reinforcing portion 31 along the first direction, or from the second reinforcing portion 32 along the third direction. As a result, the first reinforcing portion 31 extends in a plane perpendicular to the first direction, the first side portion 321 and the second side portion 322 each extend in a plane perpendicular to the third direction, and the first vertical surface portion 331 and the second vertical surface portion 332 extend in a plane perpendicular to the second direction.

[0105] Further, the manufacturing method further includes step b1 of injecting plastic into the first reinforcing portion 31, the second reinforcing portion 32, and the third reinforcing portion 33, so that the mother material coats at least a part of the first reinforcing portion 31, at least a part of the second reinforcing portion 32, and at least a part of the third reinforcing portion 33 to form the bracket 20, wherein the second support portion 22 coats at least a part of the third reinforcing portion 33.

[0106] In some embodiments, the manufacturing method further includes step d of injecting plastic into the first side portion 321 and the second side portion 322 of the reinforcing member 30 to form a buffer member. Further, in step b, when injecting plastic into the reinforcing member 30 and the buffer member to form the bracket 20, at least a part of the buffer member is exposed on the first side portion 241 and the second side portion 242 of the bracket 20. It should be understood that during the process of assembling the bracket 20 to the carrier 10, the buffer member is located between the bracket 20 and the carrier 10 to play a buffering role, reducing the impact of the collision and impact between the bracket 20 and the carrier 10 on the first lens 42 and the second lens 43 carried on the bracket 20. In addition, at least a part of the buffer member can also be exposed on the first support portion 21 of the bracket 20. It should be understood that during the movement process of the bracket 20 and the carrier 10, the buffer member is located between the bracket 20 and the housing 72 of the imaging module 2 to play a buffering role, reducing the impact of the collision and impact between the bracket 20 and the housing 72 on the first lens 42 and the second lens 43 carried on the bracket 20. Among them, the material of the buffer member includes but is not limited to silica gel, rubber, etc.

[0107] In at least one embodiment, at least a part of the buffer member is exposed on the outer side surfaces of the first side portion 241 and the second side portion 242, that is, exposed on the surface of the bracket 20 that is oppositely arranged with the carrier 10 along the third direction. During the process of aligning and installing the bracket 20 and the carrier 10, it is beneficial to avoid the hard collision between the bracket 20 and the carrier 10 caused by shaking and offset.

[0108] In at least one embodiment, at least part of the buffer is exposed on the lower surfaces of the first side portion 241 and the second side portion 242, that is, on the surface of the bracket 20 that is oppositely arranged relative to the carrier 10 in the first direction. During the alignment and installation process of the bracket 20 and the carrier 10, it is beneficial to avoid the hard collision between the bracket 20 and the carrier 10 caused by excessive downward pressure.

[0109] In at least one embodiment, at least part of the buffer is exposed on the upper surfaces of the first side beam 213 and the second side beam 214, that is, on the surface of the bracket 20 that is oppositely arranged relative to the housing 72 of the camera module 2 in the first direction. During the movement process of the bracket 20 and the carrier 10, it is beneficial to avoid the hard collision between the top surface of the bracket 20 and the housing 72.

[0110] In some embodiments, step d further includes injecting plastic into the first skeleton 311 and the second skeleton 312 of the reinforcing member 30 to form a buffer. Further, in step b, when injecting plastic into the reinforcing member 30 and the buffer to form the bracket 20, at least part of the buffer is exposed on the first support portion 21 of the bracket 20. In at least one embodiment, at least part of the buffer is exposed at the four corners of the first support portion 21, that is, on the surface of the bracket 20 that is oppositely arranged relative to the housing 72 of the camera module 2, and can avoid the first lens 42. Furthermore, during the movement process of the bracket 20 and the carrier 10, it is beneficial to avoid the hard collision between the top surface of the bracket 20 and the housing 72.

[0111] In some embodiments, step d further includes injecting plastic into the first vertical surface portion 331 and the second vertical surface portion 332 of the reinforcing member 30 to form a buffer. Further, in step b, when injecting plastic into the reinforcing member 30 and the buffer to form the bracket 20, at least part of the buffer is exposed on the second support portion 22 of the bracket 20. In at least one embodiment, at least part of the buffer is exposed on the outer side surfaces of the third side beam 223 and the fourth side beam 224, that is, on the surface of the bracket 20 that is oppositely arranged relative to the lens module 50 in the second direction. Thus, it is beneficial to avoid bumps and impacts during the installation process of the reflection module 1 and the lens module 50 on the base body 71, which may affect the first lens 42 and the second lens 43.

[0112] In at least one embodiment, step d is executed first, and then step a is executed. That is to say, first inject plastic to form a buffer on the reinforcing member 30, and then bend the reinforcing member 30. Thus, it is beneficial to reduce the difficulty of injection molding the buffer and reduce the manufacturing cost.

[0113] In at least one embodiment, step a is executed first, and then step d is executed. That is to say, first bend the reinforcing member 30, and then inject plastic to form a buffer on the reinforcing member 30. Thus, it is beneficial to avoid damaging the buffer during the bending operation.

[0114] In some embodiments, in step b, the pouring gate is opened at a position on the mold corresponding to the four corner portions of the first support portion 21, and the overflow gate is opened at a position on the mold corresponding to the middle sections of the first side beam 213 and the second side beam 214. Further, the masterbatch is filled into the cavity from the pouring gate and discharged from the cavity through the overflow gate. Specifically, the masterbatch initially filled into the cavity from the pouring gate has a relatively low temperature, and the structure strength of the product formed after curing is relatively low and the brittleness is relatively large, which may have an adverse effect on the strength of the bracket 20.

[0115] In this embodiment, the masterbatch filled into the cavity from the pouring gates corresponding to the two ends of the first side beam 213 will form a weld line in the middle section of the first side beam 213. Similarly, the masterbatch filled into the cavity from the pouring gates corresponding to the two ends of the second side beam 214 will form a weld line in the middle section of the second side beam 214. It should be understood that arranging the overflow gate at the weld line can discharge the cold material from the cavity, which is beneficial to filling the entire cavity of the mold with the masterbatch, reducing defects such as burrs, holes, weld marks, and sink marks caused by insufficient filling, and improving the dimensional accuracy and structural strength of the bracket 20.

[0116] A camera module 2, as Figure 10 shown, includes: the above-mentioned reflection module 1, lens module 50, photosensitive module 60, base body 71, and housing 72. The lens module 50 is held on the light reflection path of the reflection module 1. The photosensitive module 60 is configured to receive light and perform imaging. The base body 71 has a receiving cavity 711, and the reflection module 1 and the lens module 50 are disposed in the receiving cavity 711. The housing 72 covers the base body 71 to protect the reflection module 1 and the lens module 50 in the receiving cavity 711.

[0117] In some embodiments, the first lens 42 of the reflection module 1 has at least one convex surface, so that the first lens 42 has a positive optical power for converging light; the second lens 43 has at least one concave surface, so that the second lens 43 has a negative optical power for diverging light. It is worth mentioning that the first lens 42 defines a first optical axis OA1, the second lens 43 defines a second optical axis OA2, the first optical axis OA1 is parallel to the first direction, and the second optical axis OA2 is parallel to the second direction.

[0118] That is to say, the first lens 42 has a positive optical power to converge light, so that the light along the first optical axis OA1 is converged after passing through the first lens 42, which can increase the amount of incident light without changing the physical aperture of the camera module 2. That is to say, it is equivalent to increasing the effective aperture of the camera module 2, and thus can improve the imaging quality of the camera module 2 in a low-light environment.

[0119] Furthermore, the light converged by the first lens 42 remains converged after being reflected by the reflecting element 41. Therefore, the required size of the second lens 43 is also smaller, which is conducive to reducing the size of the second lens 43 in the first direction and the optical effective diameter of each optical lens in the lens module 50 in the first direction, thereby reducing the shoulder height of the imaging module 2 and facilitating meeting the development trend of thinning of electronic devices.

[0120] As described above, the second lens 43 has a negative optical power, which can diverge the light, so that the light along the second optical axis OA2 is diverged after passing through the second lens 43, increasing the coverage area of the light reaching the lens module 50. When the reflecting element 41 moves during the optical image stabilization operation, due to the increased light coverage area, the influence of the movement stroke of the reflecting element 41 on the position of the light on the lens module 50 is relatively small, which is conducive to improving the image stability and making the picture more stable during shooting.

[0121] It should be understood that since the first lens 42 has a converging effect and the second lens 43 has a diverging effect, the accuracy of the relative positions between the first lens 42, the reflecting element 41 and the second lens 43 is particularly important. If the shape or optical performance of the first lens 42 or the second lens 43 changes, it will affect the performance of the entire optical system of the reflecting module 1 or even the imaging module 2. That is to say, improving the structural strength of the bracket 20 is not only conducive to preventing the bracket 20 from being damaged or broken due to external forces, but also conducive to preventing the shape and optical performance of the first lens 42 and the second lens 43 from changing due to the deformation of the bracket 20.

[0122] Specifically, as described above, by embedding the reinforcing member 30 in the bracket 20, the first reinforcing portion 31 of the reinforcing member 30 is embedded in the first supporting portion 21, which is conducive to improving the structural strength of the first supporting portion 21 and making the first supporting portion 21 more stable and reliable in carrying the first lens 42; the third reinforcing portion 33 is embedded in the second supporting portion 22, which is conducive to improving the structural strength of the second supporting portion 22 and making the second supporting portion 22 more stable and reliable in carrying the second lens 43. Furthermore, the second reinforcing portion 32 of the reinforcing member 30 is embedded in the side portion 24, which is conducive to improving the structural strength of the side portion 24. Then, the side portion 24 can more reliably support the first supporting portion 21 and the second supporting portion 22, which is conducive to further reducing the risk of deformation of the first supporting portion 21 and the second supporting portion 22, and further reducing the risk of deformation of the first lens 42 and the second lens 43 caused by the deformation of the bracket 20, thereby improving the stability and reliability of the reflecting module 1.

[0123] It is worth mentioning that through the assembly of the bracket 20 and the carrier 10, the relative positions and relative angles between the first lens 42, the reflection element 41 and the second lens 43 are kept fixed. Thus, when the first lens 42, the reflection element 41 and the second lens 43 are driven to rotate together, during the process that light passes through the first lens 42 and is incident on the reflection element 41, and then is reflected by the reflection element 41 to the second lens 43, a relatively stable propagation path and propagation angle are maintained. This not only improves the imaging clarity but also enhances the overall quality of the image. In addition, keeping the relative positions and relative angles between the first lens 42, the reflection element 41 and the second lens 43 fixed is also beneficial for avoiding the setting of additional structures or algorithms to optimize the propagation path and angle of light, reducing the design and manufacturing difficulties of the reflection module 1 and the camera module 2, and simplifying the driving structure and improving the reliability and stability of the reflection module 1.

[0124] Furthermore, the first lens 42 and the second lens 43 are carried by the bracket 20. Since the size of the bracket 20 is smaller than that of the base 71, compared with the first lens 42 and the second lens 43 being fixed to the base 71, in this embodiment, the first lens 42 and the second lens 43 are mounted on the bracket 20, which is beneficial for reducing the sizes of the first lens 42 and the second lens 43 and lightening their weights. In addition, the gap between the first lens 42, the reflection element 41 and the second lens 43 can be made smaller, which is beneficial for making the structure of the reflection module 1 more compact.

[0125] In some embodiments, the lens module 50 includes a plurality of lenses, and the lens module 50 is used to image light on the imaging surface of the photosensitive module 60. Specifically, the lens module 50 includes a first lens group 51 and a second lens group 52, and the first lens group 51 and the second lens group 52 are arranged in sequence along the optical axis direction.

[0126] In a specific embodiment, the first lens group 51 is a fixed lens group, and the second lens group 52 is a focusing lens group. That is to say, the first lens group 51 is fixed to the base, and the second lens group 52 is carried by the lens carrier. Through the focusing drive assembly, the lens carrier carrying the second lens group 52 can be driven to move along the second direction. Thus, by adjusting the relative positions of the first lens group 51 and the second lens group 52, the optical focusing function of the camera module 2 can be realized. In addition, the relative position between the second lens group 52 and the imaging surface of the photosensitive module 60 can also be adjusted to switch the imaging mode of the camera module 2.

[0127] It should be understood that the lens module 50 may further include a third lens group and / or a fourth lens group, and the third lens group and / or the fourth lens group can move along the second direction to realize the optical zoom function, which is not specifically limited in this application.

[0128] In some embodiments, the photosensitive module 60 includes a chip circuit board, a photosensitive chip, and a plurality of electronic components. Specifically, the photosensitive chip and the plurality of electronic components are electrically connected to the chip circuit board. The photosensitive chip is configured to receive external light collected by the reflection module 1 for imaging, and is electrically connected to an external electronic device through the chip circuit board. It should be understood that the plurality of electronic components include, but are not limited to, passive electronic devices such as resistors and capacitors, and driving chips, memory chips, etc.

[0129] Furthermore, the photosensitive module 60 further includes a filter assembly. The filter assembly includes a filter element. The filter element is held on the light-sensitive path of the photosensitive chip and is disposed between the lens module 50 and the photosensitive chip. It should be understood that the filter element is configured to filter the incident light entering the photosensitive chip to filter out unwanted stray light such as infrared light in the incident light.

[0130] Still further, the filter assembly further includes a filter element mounting bracket. The filter element is mounted and fixed to the filter element mounting bracket and corresponds to at least the light-sensitive area of the photosensitive chip. Specifically, the filter element mounting bracket has a light-passing hole. The incident light passing through the lens module 50 enters the photosensitive chip through the light-passing hole. The filter element can be mounted on the filter element mounting bracket in a face-up or face-down manner.

[0131] In a specific embodiment, the filter element mounting bracket is fixed to the chip circuit board. It is worth mentioning that the photosensitive assembly is fixed to the image side of the filter element through the filter element mounting bracket; the photosensitive assembly can also be fixed to the image side of the filter element through the chip circuit board. The present application does not make specific limitations on this.

[0132] The foregoing has described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A reflection module, characterized in that: include: A carrier, used for carrying a reflective element, wherein the reflective element is used for reflecting light propagating in a first direction to propagate in a second direction; A bracket, fixedly connected to the carrier, the bracket comprising a first supporting portion, a second supporting portion and a side portion which are integrally connected, the first supporting portion extending in a plane perpendicular to the first direction, the second supporting portion extending in a plane perpendicular to the second direction, and the side portion extending in a plane parallel to the first direction and the second direction, so as to connect and support the first supporting portion and the second supporting portion, wherein the first supporting portion is used to carry a first lens, and the second supporting portion is used to carry a second lens, so that the reflective element is arranged between the first lens and the second lens; the first supporting portion comprises a first crossbeam, the first crossbeam extends along the first direction and is fixed to the carrier; A reinforcement member, integrally formed with the bracket, wherein the reinforcement member includes a first reinforcement portion and a second reinforcement portion, the first reinforcement portion is at least partially embedded in the first support portion and extends in a plane perpendicular to the first direction, the second reinforcement portion is bent from the first reinforcement portion along the first direction and extends in a plane parallel to the first direction and the second direction, and the second reinforcement portion is at least partially embedded in the side portion; the first reinforcement portion includes a first frame, the first frame is at least partially embedded in the first beam, at least a portion of the first frame is exposed to the first beam, wherein the thickness of the first frame along the first direction is less than the thickness of the first beam along the first direction.

2. The reflection module according to claim 1, characterized in that: The side portion includes a first side portion and a second side portion spaced apart along a third direction to connect and support the first supporting portion and the second supporting portion on opposite sides along the third direction, the second reinforcing portion includes a first side portion and a second side portion extending in a plane perpendicular to the third direction, the first side portion and the second side portion are respectively integrally connected to the first reinforcing portion, the first side portion is at least partially embedded in the first side portion, and the second side portion is at least partially embedded in the second side portion, wherein the first direction, the second direction and the third direction are perpendicular to each other.

3. The reflection module according to claim 2, characterized in that: A connecting portion is defined at the intersection of the first supporting portion and the second supporting portion; the first supporting portion includes a first side beam and a second side beam connected to the first cross beam, the first cross beam and the connecting portion are spaced apart along the second direction, the first cross beam, the first side beam, the connecting portion and the second side beam are sequentially connected to form a first mounting cavity, the first mounting cavity extends in a plane perpendicular to the first direction, and the first lens is disposed in the first mounting cavity; The first reinforcing portion includes the first frame and the second frame spaced apart along the second direction, and the second frame is at least partially embedded in the connecting portion.

4. The reflection module according to claim 3, characterized in that: The first frame integrally connects the first side portion and the second side portion, the second frame integrally connects the first side portion and the second side portion, and the first side portion and the second side portion bend and extend along a first direction from a plane where the first frame and the second frame are located.

5. The reflection module according to claim 3, characterized in that: The portion of the first frame exposed from the first crossbeam extends along a second direction toward the first installation cavity and forms an edge of the first installation cavity.

6. The reflection module according to claim 5, characterized in that: The portion of the first frame exposed to the first beam forms a receiving space with the first beam, the reflective element comprises a first end close to the first supporting portion and a second end close to the second supporting portion, and the first end of the reflective element extends into the receiving space.

7. The reflection module according to claim 2, characterized in that: The first side portion and the second side portion both include a hollow area, the first side portion passes through the hollow area of ​​the first side portion, and the second side portion passes through the hollow area of ​​the second side portion.

8. The reflection module according to claim 2, characterized in that: The first side portion and the second side portion respectively include positioning protrusions, and the positioning protrusions extend from the first side portion and the second side portion along a third direction; the carrier includes a first carrier side wall and a second carrier side wall corresponding to the first side portion and the second side portion respectively, and the first carrier side wall and the second carrier side wall are respectively provided with positioning grooves, and the positioning grooves are suitable for accommodating the positioning protrusions so as to be suitable for adjusting the relative positions of the bracket and the carrier during the assembly process.

9. The reflection module according to claim 3, characterized in that: The reinforcement also includes a third reinforcement portion extending in a plane perpendicular to the second direction, and the third reinforcement portion is at least partially embedded in the second support portion, wherein the plane where the third reinforcement portion is located is perpendicular to the plane where the first reinforcement portion is located, and the plane where the third reinforcement portion is located is perpendicular to the plane where the second reinforcement portion is located.

10. The reflection module according to claim 9, characterized in that: The second supporting portion includes a second crossbeam, and a third side beam and a fourth side beam respectively connected to the second crossbeam, the second crossbeam and the connecting portion are spaced apart along the first direction, the second crossbeam, the third side beam, the connecting portion and the fourth side beam are sequentially connected to form a second mounting cavity, the second mounting cavity extends in a plane perpendicular to the second direction, and the second lens is disposed in the second mounting cavity; The third reinforcement portion is at least partially embedded in the third side beam and / or the fourth side beam.

11. The reflection module according to claim 9, characterized in that: The third reinforcing portion is integrally connected to the first side portion and the second side portion, and the third reinforcing portion is bent and extended along a third direction from a plane where the first side portion and the second side portion are located.

12. The reflection module according to claim 9, characterized in that: The third reinforcement portion is integrally connected to the second frame, and the third reinforcement portion is bent and extends along a first direction from a plane where the second frame is located.

13. The reflection module according to any one of claims 1 to 12, characterized in that: The reflection module further includes a reflection layer, which is covered on the outer surface of the reinforcement member exposed to the bracket, and the reflection layer is made of low-reflection material.

14. A method for manufacturing a bracket, used for manufacturing the bracket of the reflection module according to claim 1, characterized in that: The following steps are involved: a. Provide a metal strip, wherein the metal strip comprises a plurality of reinforcing members, wherein the reinforcing members comprise a first reinforcing portion and a second reinforcing portion, wherein the second reinforcing portion is bent from the first reinforcing portion along a first direction; b. implanting the metal strip into a mold, and performing injection molding on the first reinforcement part and the second reinforcement part, so that the masterbatch covers at least a portion of the first reinforcement part and at least a portion of the second reinforcement part, so as to form a plurality of brackets, wherein the bracket comprises a first support part, a second support part and a side part which are integrally connected, the first support part covers at least a portion of the first reinforcement part, and the side part covers at least a portion of the second reinforcement part; c. Cut the bracket and the metal strip to separate the brackets and ensure that each bracket is embedded with the reinforcement.

15. The manufacturing method according to claim 14, characterized in that: The method also includes step a1, wherein the reinforcement member also includes a third reinforcement portion, wherein the third reinforcement portion is connected to the first reinforcement portion and bent from the first reinforcement portion along a first direction and / or connected to the second reinforcement portion and bent from the second reinforcement portion along a third direction; and step b1, injection molding the first reinforcement portion, the second reinforcement portion and the third reinforcement portion so that the masterbatch covers at least a portion of the first reinforcement portion, at least a portion of the second reinforcement portion and at least a portion of the third reinforcement portion to form the bracket, wherein the second support portion covers at least a portion of the third reinforcement portion.

16. A camera module, characterized in that: include: The reflection module as claimed in any one of claims 1 to 13; a lens module, wherein the lens module is held on a light reflection path of the reflection module; A photosensitive module, wherein the photosensitive module is configured to receive light and perform imaging; A base body, wherein the base body has a containing cavity, and the reflection module and the lens module are arranged in the containing cavity; and a shell, wherein the shell is covered on the base.

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