Camera modules and electronic equipment

Abstract

The present application discloses a camera module and an electronic device, including: a first bracket to provide support for a lens assembly, a guide groove to provide a track for the movement of the lens assembly, and a guide post to cooperate with the guide groove and slide in the guide groove to achieve the telescopic movement of the lens assembly. The guide groove is provided with a first part, a second part and a third part, and the guide groove also has multiple slope changes, the slope of the third part is gentler than the slope of the first part, and the second part is used to connect the first part and the third part. The elastic member is between the guide groove and the guide post, and when the guide post moves from the third part to the first part, the elastic member is deformed. Due to the deformation of the elastic member, when the guide post moves to the position where the elastic member is deformed, the guide post is more likely to slide down along the elastic member, and the lens assembly retracts with the sliding of the guide post. The embodiment of the present application has the beneficial effect of reducing the risk of the lens assembly being broken and failing due to the collision between the guide post and the guide groove.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to a camera module and electronic equipment. Background Art

[0002] Currently in the mobile terminal industry, most mobile terminals are equipped with camera modules equipped with automatic zoom cameras, which use a driving motor to drive the guide column in the camera module to move so that the distance between multiple lenses changes to achieve a zoom function.

[0003] When the user is using the camera zoom function, the phone may fall or collide, which may cause the guide columns in the camera module to be damaged to varying degrees, which may prevent the guide columns from sliding normally. The inability of the guide columns to slide normally means that the lens cannot be extended or retracted normally, making the zoom camera function of the camera module unusable. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a camera module and an electronic device that can solve the problem of damage to the camera module due to force in the prior art.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In the first aspect, an embodiment of the present application provides a camera module, comprising a first bracket and a lens assembly, wherein the first bracket is sleeved on the periphery of the lens assembly; a guide rail groove is provided on the first bracket, and a guide column is provided on the lens assembly; the guide column is movably provided in the guide rail groove; the guide rail groove comprises a first part, a second part and a third part, the slope of the third part is gentler than the slope of the first part, and the second part is connected between the first part and the third part; an elastic member is provided between the guide rail groove and the guide column, and when the guide column moves from the third part to the first part, the elastic member is deformed.

[0007] In a second aspect, an embodiment of the present application provides an electronic device, comprising the camera module as described above.

[0008] In the embodiment of the present application, the first bracket is used to provide support for the lens assembly, the guide groove is used to provide a track for the movement of the lens assembly, and the guide column is used to cooperate with the guide groove and slide in the guide groove to achieve the telescopic movement of the lens assembly. The guide groove is provided with multiple parts, including a first part, a second part and a third part. The guide groove also has multiple slope changes, the slope of the third part is gentler than the slope of the first part, and the second part is used to connect the first part and the third part. An elastic member is provided on the guide groove, and the elastic member is located between the guide groove and the guide column. When the guide column moves from the third part to the first part, the elastic member is deformed by the force. Due to the deformation of the elastic member, when the guide column moves to the position where the elastic member is deformed, a small collision or no collision may occur between the guide column and the elastic member, and the guide column is more likely to slide along the elastic member. The lens assembly retracts with the sliding of the guide column, thereby reducing the impact force on the guide column, and reducing the risk of the lens assembly breaking and failing due to the collision between the guide column and the guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a structural exploded diagram of the lens assembly in an embodiment of the present application;

[0010] Figure 2 is a schematic diagram of a guide rail groove provided on a first bracket in an embodiment of the present application;

[0011] Figure 3 is a schematic structural diagram of the first part, the second part and the third part of the elastic member in an embodiment of the present application;

[0012] Figure 4 is a schematic diagram of a guide post entering a guide rail groove in an embodiment of the present application;

[0013] Figure 5 In the embodiment of this application Figure 4 A local enlarged schematic diagram of the middle A;

[0014] Figure 6 is a schematic diagram of the movable connection between the lug in the elastic member and the first bracket in the embodiment of the present application;

[0015] Figure 7 In the embodiment of this application Figure 6 A partial enlarged schematic diagram of point B in the middle;

[0016] Figure 8 It is a force diagram of the guide column in the guide rail groove in the embodiment of the present application being subjected to a force pointing in the retracting direction;

[0017] Fig. 9 It is a schematic structural diagram of the cam in the embodiment of the present application, which only includes the first curvature portion, and the first curvature portion abuts against the second portion;

[0018] Fig.10 It is a structural schematic diagram of the cam in the embodiment of the present application, which only includes the first curvature portion, and the first curvature portion is separated from the second portion;

[0019] Fig.11 is a schematic diagram of the structure in which the first curvature portion abuts against the guide rail groove in an embodiment of the present application;

[0020] Fig.12 is a schematic diagram of the structure in which the second curvature portion abuts against the guide rail groove in an embodiment of the present application;

[0021] Fig.13 It is a partial enlarged structural schematic diagram of the guide column in the embodiment of the present application entering the guide rail groove provided with an elastic member, a buffer medium layer and a cam;

[0022] Fig.14 It is a structural schematic diagram of an embodiment of the present application in which a through hole is provided on the elastic member and a buffer medium layer is injection-molded in the through hole;

[0023] Fig.15 This is a schematic structural diagram of another angle in which a through hole is provided on the elastic member in the embodiment of the present application, and a buffer medium layer is injection-molded in the through hole;

[0024] Fig.16 is a schematic diagram showing that the thickness of the buffer medium layer at different positions is different in the embodiment of the present application;

[0025] Fig.17 is a schematic structural diagram of the first bracket in an embodiment of the present application;

[0026] Fig.18 It is a schematic diagram of the connection between the cam, the driving member, the processor and the sensor in the embodiment of the present application.

[0027] Description of reference numerals:

[0028] 10. First bracket; 11. Guide rail groove; 111. Elastic member; 111a. Buffer portion; 111b. Smooth portion; 112. First portion; 113. Second portion; 113a. Buffer zone; 113b. Smooth zone; 114. Third portion; 1111. Lug; 1112. Buffer medium layer; 1113. Through hole; 12. Accommodating cavity; 13. Movable groove; 20. Lens assembly; 21. Guide column; 30. Cam; 31. First curvature portion; 32. Second curvature portion; 40. Sensor; 50. Processor; 60. Driver. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0031] The camera module and electronic device provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0032] like Figure 1 As shown, the lens assembly 20 is composed of multiple structures including a sleeve 22, including: a lens, a lens bracket, a sliding bracket and a guide rail bracket, etc. The lens assembly 20 is used to realize the function of lens telescopic, and realizes the change of long-range and close-range by changing the focal length within a certain range.

[0033] like Figure 2 As shown, in the mechanical compensation zoom optical system, by setting a track that conforms to the optical zoom fitting curve, the camera is driven to extend and retract along the track to achieve the purpose of camera zoom. Among them, the curves between several zoom points are not the same. For example, the guide groove 11 corresponding to the 4x-2x (4x-2x zoom) optical zoom range is relatively flat, and the guide rail of 4x-5x (4x-5x zoom) is a sudden change area.

[0034] See also Figures 3 to 18 , an embodiment of the present application provides a camera module, comprising: a first bracket 10, a lens assembly 20, wherein the first bracket 10 is sleeved on the periphery of the lens assembly 20;

[0035] The first bracket 10 is provided with a guide groove 11 , and the lens assembly 20 is provided with a guide post 21 ; the guide post 21 is movably disposed in the guide groove 11 .

[0036] The guide rail groove 11 includes a first portion 112 , a second portion 113 and a third portion 114 . The slope of the third portion 114 is gentler than that of the first portion 112 . The second portion 113 is connected between the first portion 112 and the third portion 114 .

[0037] An elastic member 111 is disposed between the guide rail groove 11 and the guide column 21 . When the guide column 21 moves from the third portion 114 to the first portion 112 , the elastic member 111 is deformed.

[0038] In the embodiment of the present application, the first bracket 10 is used to provide support for the lens assembly 20, the guide groove 11 is used to provide a track for the movement of the lens assembly 20, and the guide column 21 is used to cooperate with the guide groove 11 and slide in the guide groove 11 to achieve the extension and retraction of the lens assembly 20. Figure 3 As shown, the guide groove 11 is provided with multiple parts, including a first part 112, a second part 113 and a third part 114. The guide groove 11 also has multiple slope changes. The slope of the third part 114 is gentler than that of the first part 112. The second part 113 is provided to connect the first part 112 and the third part 114. The guide groove 11 is provided with an elastic member 111, and the elastic member 111 is located between the guide groove 11 and the guide column 21. Figure 4 As shown, the guide post 21 can control the extension and retraction of the lens assembly 20. When the guide post 21 moves from the third part 114 to the first part 112 of 114, the elastic member 111 is deformed by the force. Due to the deformation of the elastic member 111, when the guide post 21 moves to the position where the elastic member 111 is deformed, a slight collision or no collision may occur between the guide post 21 and the elastic member 111. The guide post 21 naturally slides along the elastic member 111, and the lens assembly 20 retracts as the guide post 21 slides. When the camera assembly is subjected to external force or impact, the embodiment of the present application has the beneficial effect of reducing the risk of the lens assembly 20 being broken and failing due to the collision between the guide post 21 and the guide rail groove 11.

[0039] It should be noted that the above-mentioned minor collision refers to a collision in which the guide post 21 is not damaged and can slide smoothly along the elastic member 111 .

[0040] It should also be noted that the first bracket 10 may be provided with a plurality of guide grooves 11. For example, the first bracket 10 may be provided with two guide grooves 11, or three guide grooves 11, which are not limited in this embodiment. Accordingly, the lens assembly 20 may be provided with a number of guide posts 21 corresponding to the number of guide grooves 11, and the guide posts 21 extend into the corresponding guide grooves 11 and then slide in cooperation.

[0041] Optionally, in the embodiment of the present application, the second portion 113 is provided with the elastic member 111, and when the guide column 21 moves from the third portion 114 to the first portion 112, the slope of the elastic member 111 becomes gentler.

[0042] In the embodiment of the present application, the elastic member 111 is arranged at the second part 113. When the guide column 21 moves from the third part 114 to the first part 112 and passes through the second part 113, the elastic member 111 arranged at the second part 113 is deformed by the action of force. Due to the deformation of the elastic member 111, when the guide column 21 moves to the position of the second part 113, a slight collision or no collision may occur between the guide column 21 and the elastic member 111, and the guide column 21 naturally slides down from the second part 113 along the elastic member 111, and the lens assembly 20 retracts as the guide column 21 slides down. In the embodiment of the present application, the elastic member 111 is arranged in the second part 113. When the camera assembly is subjected to external force or impact such as falling, the deformation of the elastic member 111 makes the slope of the elastic member 111 slow down when the guide column 21 moves from the third part 114 to the first part 112 and passes through the second part 113, thereby avoiding the collision with the guide column 21 to a certain extent, providing a spatial position for the natural sliding of the guide column 21 along the elastic member 111, and being more conducive to the guide column 21 smoothly passing through the slope change area of ​​the second part 113 and sliding to the first part 112, thereby avoiding the jamming or even damage caused by the guide column 21 being stuck in the second part 113 and unable to slide down.

[0043] It is understandable that when the guide column 21 moves from the third part 114 to the first part 112, when the camera module is subjected to external force or impact such as falling, the camera module is in a state of being subjected to external force or falling; when the camera module is not subjected to external force or impact such as falling, the camera module is in a state of normal operation. According to different states of the camera module, corresponding to different states of the camera module, the elastic member 111 also has different states, including a compressed state and a natural state.

[0044] In this embodiment, when the camera module is in a normal working state, the guide column 21 moves between the first part 112 and the third part 114 according to user needs to achieve the focus of the camera. In the working state, the elastic member 111 of the second part 113 has a slope mutation area, that is, the slope of the buffer part 111a close to the first part 112 in the elastic member 111 on the surface of the second part 113 is greater than the slope of the flat part 111b close to the third part 114, which can effectively prevent the guide column 21 from shaking or sliding during the focusing process. When the camera module is subjected to external force or falls, during the movement of the guide column 21 from the third part 114 to the first part 112, the buffer part 111a of the elastic member 111 is compressed and deformed under the impact of the external force on the guide column 21, so that the slope of the buffer part 111a is gentle, which is conducive to the smooth sliding of the guide column 21 and avoids the damage of the guide column.

[0045] When the camera module is under stress or falls, the elastic member 111 is deformed by the force from the guide column 21, so that the slope of the elastic member 111 in the sudden change area of ​​the guide groove 11 becomes gentler. The natural state refers to the situation where the elastic member 111 is not subjected to the force from the guide column 21, and the slope of the elastic member 111 becomes steeper. The camera module is in a normal working state, and the user can move the guide column 21 back and forth between the first part 112 and the third part 114 as needed to achieve the focus of the camera. The elastic member 111 in the natural state forms a sudden change slope area in the second part 113 through the slope difference between the buffer part 111a and the gentle part 111b to effectively prevent the guide column 21 from shaking or sliding to the first part 112 during the focusing process. When the lens assembly 20 needs to be reset to the starting position of the first part 112, the lens assembly 20 switches from the extended state to the retracted direction, and the guide column 21 is subjected to a force pointing in the retracted direction to pass through the slope mutation area. The guide column 21 squeezes the elastic member 111 to switch the elastic member 111 from the natural state to the deformed state, and the slope of the elastic member 111 in the second part 113 becomes gentle, the guide column 21 slides down naturally, and the lens assembly 20 retracts. Figure 8 As shown, when the lens assembly 20 switches from the extended state to the retracted direction, and the guide column 21 is subjected to a force pointing to the retracted direction, the elastic member 111 is in a compressed state, and the elastic member 111 in the compressed state is deformed, and the slope of the sudden change area of ​​the guide groove 11 becomes gentle. This method can use the elasticity of the elastic member 111 itself to provide a buffer for the guide column 21, and has a simple structure and is easy to maintain.

[0046] Optionally, refer to Figure 3The elastic member 111 is arranged on the surface of the guide rail groove 11, and the orthographic projection of the elastic member 111 on the guide rail groove 11 covers the first part 112, the second part 113 and the third part 114. When the guide column 21 moves from the third part 114 to the first part 112, the slope of the elastic member 111 becomes gentler.

[0047] In the embodiment of the present application, the elastic member 111 is disposed on the surface of the guide rail groove 11, wherein the orthographic projection of the elastic member 111 on the guide rail groove 11 completely covers the surface of the second portion 113, and the orthographic projection of the elastic member 111 on the guide rail groove 11 at least partially covers the surface of the first portion 112 and at least partially covers the surface of the third portion 114. When the guide post 21 moves from the third portion 114 to the first portion 112, the elastic member 111 undergoes elastic deformation, the slope of the elastic member 111 slows down, and the guide post 21 naturally slides down along the elastic member 111. The embodiment of the present application has the beneficial effect of enhancing the smoothness of the natural sliding of the guide post 21.

[0048] It should be noted that the orthographic projection of the elastic member 111 on the guide rail groove 11 may also completely cover the first portion 112 , the second portion 113 and the third portion 114 , and this embodiment does not impose any limitation on this.

[0049] Optionally, refer to Figure 6 and Figure 7 In the embodiment of the present application, the elastic member 111 is a spring sheet, and lugs 1111 are provided at both ends of the spring sheet. A movable groove 13 is also provided on the first bracket 10, and the movable groove 13 is provided at both ends of the guide rail groove 11. The lug 1111 is movably connected to the first bracket 10 through the movable groove 13.

[0050] When the elastic sheet undergoes elastic deformation, the lug 1111 moves in the movable groove 13 .

[0051] In the embodiment of the present application, the elastic member 111 can be a spring sheet, and lugs 1111 structures 1111 are provided at both ends of the spring sheet. The lugs 1111 are provided to connect the spring sheet to the first bracket 10. The first bracket 10 is also provided with a movable groove 13, and the movable groove 13 is provided at both ends of the guide groove 11. The lugs 1111 and the movable groove 13 are movably connected. The setting of the movable groove 13 provides a certain movable space for the lugs 1111. The spring sheet is movably connected to the movable groove 13 through the lugs 1111. The lugs 1111 are at least partially in the movable groove 13, and the lugs 1111 can move in the groove. When the spring sheet does not undergo elastic deformation, the lugs 1111 abut against one side of the movable groove 13 close to the guide groove 11. When the spring sheet undergoes elastic deformation, the lugs 1111 separate from one side of the movable groove 13 close to the guide groove 11 and move in a direction away from the guide groove 11. The embodiment of the present application provides a lug 1111 on the spring sheet and a movable groove 13 corresponding to the lug 1111 on the first bracket 10, thereby limiting the spring sheet through the movable groove 13 and providing a spatial position for the movement of the lug 1111 by providing the movable groove 13, thereby having the beneficial effects of preventing the spring sheet from retracting and providing a moving space for the spring sheet to deform.

[0052] Optionally, the elastic member 111 is a spring sheet, both ends of which are fixed to both ends of the second part 113, a deformation space is reserved between the spring sheet and the second part 113, and both ends of the spring sheet are fixedly connected to the first part 112 and the third part 114 respectively.

[0053] Optionally, the elastic member 111 is a spring sheet, one end of which is fixedly connected to the first part 112, and the other end of which is fixedly connected to the third part 114. Both ends of the spring sheet are fixed to the guide rail groove 11, and a deformation space is reserved between the spring sheet and the second part 113, and the setting of the deformation space is used to provide space for the deformation of the spring sheet. When the spring sheet is deformed, both ends of the spring sheet are fixed, and the spring sheet on the second part 113 moves toward the direction close to the surface of the guide rail groove 11 to compress the deformation space; when the spring sheet recovers its deformation, both ends of the spring sheet are fixed, and the spring sheet on the second part 113 moves away from the surface of the guide rail groove 11 to increase the deformation space.

[0054] Optionally, refer to Figure 3 , Fig. 9 and Fig.10In the embodiment of the present application, the elastic member 111 is arranged on the surface of the guide rail groove 11, and the elastic member 111 arranged on the surface of the second part 113 includes a buffer portion 111a and a flat portion 111b, the buffer portion 111a is close to the first part 112, and the flat portion 111b is close to the third part 114, the slope of the buffer portion 111a is greater than the slope of the flat portion 111b, and the slope of the buffer portion 111a becomes steeper near the first part 112.

[0055] The camera module also includes a cam 30, which includes a first curvature portion 31; when the first curvature portion 31 abuts against the elastic member 111, the elastic member 111 is deformed toward the inner side of the guide groove 11 in the second portion 113; when the first curvature portion 31 is separated from the elastic member 111, the elastic member 111 returns to a natural state.

[0056] In the embodiment of the present application, the slope of the second portion 113 of the guide groove 11 is suddenly changed relative to the slope of the first portion 112 and the slope of the second portion 113. The elastic member 111 disposed on the surface of the second portion 113 includes a buffer portion 111a and a flat portion 111b, wherein the buffer portion 111a is close to the first portion 112, and the flat portion 111b is close to the third portion 114. The buffer portion 111a and the flat portion 111b are disposed to match the slope of the second portion 113 of the guide groove 11, so that the shape of the elastic member 111 matches the shape of the second portion 113. In one embodiment, when the camera module is in a normal working state, the first curvature portion 31 abuts against the second portion 113, and during the movement of the guide column 21 from the third portion 114 to the first sub-portion 112, the elastic member 111 is in a natural state with a steeper slope, and the guide column 21 moves along the elastic member 111 in the natural state. In another embodiment, when the camera module is subjected to external force or falls, the first curvature portion 31 is separated from the second portion 113. At this time, the slope of the elastic member 111 becomes gentler than the slope when the first curvature portion 31 abuts against the second portion 113. During the movement of the guide column 21 from the third portion 114 to the first sub-portion 112, the slope of the elastic member 111 is gentler, and the guide column 21 moves along the elastic member 111. During the above movement, since the slope of the elastic member 111 becomes gentler, it is conducive to the smooth sliding of the guide column 21 and avoids damage to the guide column. When the camera assembly is subjected to external force or impact such as falling, when the guide column 21 moves from the third part 114 to the first part 112 and passes through the second part 113, the deformation of the buffer portion 111a and the smooth portion 111b of the elastic member 111 makes the slope of the elastic member 111 gentler. The setting of the smooth portion 111b and the buffer portion 111a is more conducive to the guide column 21 smoothly passing through the slope change area of ​​the second part 113 and sliding to the first part 112, thereby avoiding the beneficial effect of the guide column 21 being stuck in the second part 113 and unable to slide down, resulting in jamming or even damage.

[0057] Alternatively, if Fig.11 and Fig.12 In the embodiment of the present application, the camera module also includes a cam, and the cam 30 includes a first curvature portion 31 and a second curvature portion 32; when the first curvature portion 31 abuts against the elastic member 111, the slope of the elastic member 111 becomes steeper; when the second curvature portion 32 abuts against the elastic member 111, the slope of the elastic member 111 becomes gentler.

[0058] In the embodiment of the present application, the cam 30 is used to change the slope of the elastic member 111. The cam 30 includes a first curvature portion 31 and a second curvature portion 32. When the first curvature portion 31 abuts against the elastic member 111, the first curvature portion 31 makes the slope of the elastic member 111 steeper to cope with the normal working state of the camera module; when the second curvature portion 32 abuts against the elastic member 111, the second curvature portion makes the slope of the elastic member 111 gentler to cope with the state of the camera module falling due to external force. Specifically, when the camera module is subjected to external force or impact such as falling, the first curvature portion 31 moves away from the elastic member 111 and no longer abuts against the elastic member 111. At this time, the slope of the second portion 113 slows down, so that the guide column 21 can naturally slide down along the direction of the elastic member 111.

[0059] In the embodiment of the present application, the cam 30 may have only a part of the fan surface, and in the entire circumference of the rotation of the cam 30, the other part has no fan surface, and the fan surface is the first curvature portion 31. When the first curvature portion 31 rotates to abut against the elastic member 111, the slope of the second part 113 of the elastic member 111 in the guide groove 11 is made to match the slope of the camera module in the normal working state. After the first curvature portion 31 of the cam 30 is separated from the elastic member 111, since there is no other component abutting against the elastic member 111, the elastic member 111 returns to the natural state, so that the slope of the elastic member 111 in the second part 113 becomes gentler. The above method saves more materials for the cam 30 and the manufacturing cost of the cam 30 is lower.

[0060] In the embodiment of the present application, the cam 30 includes a first curvature portion 31 and further includes a second curvature portion 32. When the cam 30 rotates so that the second curvature portion 32 abuts against the elastic member 111, the slope of the elastic member 111 in the second portion 113 of the guide groove 11 becomes gentle, so that the guide post 21 slides down naturally and the lens assembly 20 retracts. In the embodiment of the present application, the second curvature portion 32 is provided to achieve a gentle slope of the elastic member 111 in the second portion 113 of the guide groove 11, and the gentle slope of the second portion 113 has the beneficial effect of enabling the guide post 21 to slide down naturally.

[0061] Optionally, in the embodiment of the present application, a driving member 60 and a sensor 40 are also included;

[0062] The driving member 60 is connected to the cam 30. When triggered by a detection signal from the sensor 40, the driving member 60 controls the cam 30 to rotate in accordance with the moving direction of the guide post 21.

[0063] When the guide post 21 moves from the third portion 114 to the first portion 112 , the first curvature portion 31 of the cam 30 is out of contact with the elastic member 111 ;

[0064] When the guide post 21 moves from the first portion 112 to the third portion 114 , the first curvature portion 31 of the cam 30 abuts against the elastic member 111 .

[0065] In the embodiment of the present application, the drive member 60 is configured to drive the cam 30 to rotate, and the sensor 40 is configured to detect the state of the electronic device where the camera module is located. For example, when the electronic device where the camera module is located suddenly falls while in a working state, the sensor 40 of the electronic device (for example, a gyroscope, hereinafter the sensor 40 is replaced by a gyroscope) detects the acceleration of the electronic device a≈G (gravitational acceleration 9.8m / s 2 ), the guide column 21 moves from the third portion 114 to the first portion 112, and the driving member 60 quickly controls the rotation of the cam 30 during the movement of the guide column 21, so that the first curvature portion 31 moves away from the elastic member 111, and the second curvature portion 32 of the cam 30 abuts against the elastic member 111, compressing the elastic member 111, so that the slope of the second portion 113 of the guide rail groove 11 becomes gentler.

[0066] It should be noted that, in actual applications, the sensor 40 of the mobile terminal sends the sensor 40 signal to the processor 50. After the processor 50 determines that the mobile terminal is in a state of being subjected to external force or falling according to the sensor 40 signal, it sends a rotation signal to the driving member 60. The driving member 60 drives the cam 30 to rotate until the first curvature portion 31 of the cam 30 is out of contact with the elastic member 111. The processor 50 determines that the mobile terminal is not in a state of being subjected to external force or falling according to the sensor 40 signal, and it can also send a rotation signal to the driving member 60. The driving member 60 drives the cam 30 to rotate until the first curvature portion 31 of the cam 30 is in contact with the elastic member 111. Among them, the driving member 60 can be a driving motor. When the gyroscope of the electronic device where the camera module is located detects the motion acceleration a≈G (gravitational acceleration 9.8m / s 2 ), the guide column 21 moves from the third portion 114 to the first portion 112, and the driving member 60 quickly controls the cam 30 to rotate during the falling process, so that the second curvature portion 32 abuts against the elastic member 111; when the gyroscope of the electronic device does not detect the motion acceleration of the electronic device a≈G (gravitational acceleration 9.8m / s 2 ), or when the guide post 21 moves from the first portion 112 to the third portion 114, the driving member 60 controls the first curvature portion 31 of the cam 30 to rotate to a position abutting against the elastic member 111.

[0067] It should also be noted that when the camera module is subjected to external force or impact such as falling, the gyroscope can be based on the motion acceleration a≈G (gravitational acceleration 9.8m / s 2) detects that the electronic device where the camera module is located is in a falling state, and the processor 50 can issue a command to the driving member 60 to drive the cam 30 to rotate when the electronic device falls. In response to the command signal of the sensor 40, the driving member 60 drives the cam 30 to rotate at the first time. The rapid response of the driving member 60 can make the second curvature portion 32 of the cam 30 abut against the elastic member 111 before the electronic device has completely fallen, so as to prevent damage caused by the fall in advance and avoid damage to the guide column 21.

[0068] Optionally, in the embodiment of the present application, a receiving cavity 12 is provided in the first bracket 10 at a position corresponding to the second portion 113, and the receiving cavity 12 is provided with an opening in a direction toward the second portion 113;

[0069] The cam 30 is disposed in the accommodating cavity 12 . The cam 30 rotates in the accommodating cavity 12 so that the first curvature portion 31 or the second curvature portion 32 abuts against the elastic member 111 through the opening.

[0070] In the embodiment of the present application, the accommodating chamber 12 is opened on the side of the guide groove 11 where the elastic member 111 is installed, or is arranged in the opposite direction of the protruding direction of the second portion 113, and then is adjacent to the guide groove 11. The accommodating chamber 12 is arranged to provide an accommodating space for the arrangement of the cam 30. The accommodating chamber 12 is arranged on the first bracket 10. An opening is arranged on one side of the accommodating chamber 12, and the opening faces the position where the second portion 113 is located. The cam 30 is embedded in the accommodating chamber 12, and the cam 30 can rotate freely in the accommodating chamber 12. During the rotation of the cam 30, the first curvature portion 31 or the second curvature portion 32 can abut against the second portion 113 of the elastic member 111 through the opening. The embodiment of the present application provides an installation space for the cam 30 by setting the accommodating chamber 12, which has the beneficial effects of saving space, reducing the volume of the camera module, and realizing miniaturization of the camera module.

[0071] Alternatively, if Fig.13 In the embodiment of the present application, a buffer medium layer 1112 is provided between the elastic member 111 and the guide rail groove 11 .

[0072] In the embodiment of the present application, the buffer medium layer 1112 is provided to absorb the impact force transmitted from the direction of the elastic member 111, reduce the damage caused by the collision between the guide column 21 and the elastic member 111, and prevent damage to the camera module caused by damage to the guide column 21.

[0073] It should be noted that the thickness of the buffer medium layer 1112 is in the range of 0.05 mm to 0.2 mm.

[0074] It should also be noted that a buffer medium layer 1112 is also provided on the side of the elastic member 111 facing the guide column 21, which can further reduce the damage caused by the collision between the guide column 21 and the elastic member 111. It should be noted that the material of the buffer medium layer 1112 can be rubber, sponge, etc. The rubber layer and the sponge layer are provided to release a certain amount of external force from the elastic member 111, which helps to absorb the external force and provide a certain buffering effect for the collision between the guide column 21 and the elastic member 111, thereby reducing the collision impact between the guide column 21 and the elastic member 111.

[0075] It should also be noted that the elastic member 111 can be an elastic steel sheet, an elastic plastic sheet, etc. The spring steel sheet and the elastic plastic sheet have a certain yield strength. When subjected to heavy loads, they do not cause plastic deformation but only undergo a certain elastic deformation. They also have sufficient toughness and plasticity to prevent sudden brittle fracture under the action of force.

[0076] Optionally, in the embodiment of the present application, an integrally formed elastic member 111 may be provided inside the guide rail groove 11 , and the elastic member 111 is adapted to the shape of the guide rail groove 11 .

[0077] In the embodiment of the present application, the inner side of the guide rail groove 11 can be provided with an integral elastic member 111 , the shape of the elastic member 111 is adapted to the shape of the inner wall of the guide rail groove 11 , and the guide rail groove 11 and the elastic member 111 can be an integrally formed structure.

[0078] Optionally, in the embodiments of the present application, Fig.14 and Fig.15 The elastic member 111 is a spring sheet, a through hole 1113 is provided on the spring sheet, and the buffer medium layer 1112 is embedded with the spring sheet through the through hole 1113 .

[0079] In the embodiment of the present application, the through hole 1113 is provided for connecting with the buffer medium layer 1112. The buffer medium layer 1112 can be injection molded to the side of the elastic member 111 close to the guide column 21 and the inside of the through hole 1113 of the elastic member 111, so that the buffer medium layer 1112 and the elastic member 111 are more tightly bonded. The embodiment of the present application has the beneficial effect of enhancing the connection strength between the buffer medium layer 1112 and the spring sheet.

[0080] It should be noted that the spring sheet can be at least one of a spring steel sheet and an elastic plastic sheet. The spring steel sheet and the elastic plastic sheet have a certain yield strength. When subjected to heavy loads, they do not cause plastic deformation but only undergo a certain elastic deformation. They also have sufficient toughness and plasticity to prevent sudden brittle fracture under the action of force.

[0081] Optionally, in the embodiment of the present application, combined with Figure 3 and Fig.16, the thickness of the buffer medium layer 1112 corresponding to the second part 113 is greater than the thickness of the buffer medium layer 1112 corresponding to the first part 112; the thickness of the buffer medium layer 1112 corresponding to the second part 113 is greater than the thickness of the buffer medium layer 1112 corresponding to the third part 114.

[0082] It should be noted that in actual use, the buffer medium layer 1112 may use a rubber layer, and of course other buffer materials such as sponge may also be used. The thickness of the buffer medium layer 1112 in the second part 113 is greater than the thickness in other parts. In actual applications, the thickness of the buffer medium layer 1112 in the second part 113 near the first part 112 and the third part 114 is less than the thickness in the middle of the second part 113, and the thickness gradually decreases from thick to thin from the position where the bending degree of the second part 113 is the largest toward the first part 112 and the third part 114.

[0083] In the embodiment of the present application, the thickness of the buffer medium layer 1112 corresponding to different parts of the guide rail groove 11 is different. Since the effective deformation of the elastic member 111 is concentrated in the second part 113, the thickness of the buffer medium layer 1112 corresponding to the second part 113 is thicker than the first part 112 and the third part 114. In the process of the guide column 21 moving from the third part 114 to the first part 112, the slope of the buffer area 113a of the second part 113 is greater than the slope of the flat area 113b, and the guide column 21 moving to the buffer medium layer 1112 corresponding to the second part 113 will be blocked. Therefore, the thicker thickness of the buffer medium layer 1112 corresponding to the second part 113 is conducive to the smooth sliding of the guide column 21, and has the beneficial effect of preventing damage to the camera module caused by collision and damage of the guide column 21 during the sliding process.

[0084] It should be noted that the thickness of the buffer medium layer 1112 corresponding to the first portion 112 and the third portion 114 may be the same or different, and this embodiment does not impose any limitation on this.

[0085] Optionally, an electronic device is provided in an embodiment of the present application, comprising the camera module as described above.

[0086] In the embodiment of the present application, the electronic device may be any one of a computer, a tablet computer, a mobile phone or a watch.

[0087] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0088] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A camera module, characterized in that: include: A first bracket (10) and a lens assembly (20), wherein the first bracket (10) is sleeved on the periphery of the lens assembly (20); The first bracket (10) is provided with a guide rail groove (11), and the lens assembly (20) is provided with a guide column (21); the guide column (21) is movably arranged in the guide rail groove (11); The guide rail groove (11) comprises a first portion (112), a second portion (113) and a third portion (114); the slope of the third portion (114) is gentler than the slope of the first portion (112); and the second portion (113) is connected between the first portion (112) and the third portion (114); An elastic member (111) is provided between the guide rail groove (11) and the guide column (21), and when the guide column (21) moves from the third part (114) to the first part (112), the elastic member (111) is deformed; A buffer medium layer (1112) is provided between the elastic member (111) and the guide rail groove (11); the thickness of the buffer medium layer (1112) corresponding to the second portion (113) is greater than the thickness of the buffer medium layer (1112) corresponding to the first portion (112), and the thickness of the buffer medium layer (1112) corresponding to the second portion (113) is greater than the thickness of the buffer medium layer (1112) corresponding to the third portion (114).

2. The camera module according to claim 1, characterized in that: The second part (113) is provided with the elastic member (111), and when the guide column (21) moves from the third part (114) to the first part (112), the slope of the elastic member (111) becomes gentler.

3. The camera module according to claim 2, characterized in that: The elastic member (111) comprises a buffer portion (111a) and a flat portion (111b), wherein the buffer portion (111a) is close to the first portion (112), and the flat portion (111b) is close to the third portion (114), the slope of the buffer portion (111a) is greater than the slope of the flat portion (111b), and the slope of the flat portion (111b) is less than the slope of the third portion (114); when the guide column (21) moves from the third portion (114) to the first portion (112), the elastic member (111) is deformed so that the slope of the buffer portion (111a) becomes flatter.

4. The camera module according to claim 1, characterized in that: The elastic member (111) is arranged on the surface of the guide rail groove (11); the orthographic projection of the elastic member (111) on the guide rail groove (11) covers the first part (112), the second part (113) and the third part (114); and the slope of the elastic member (111) becomes gentler when the guide column (21) moves from the third part (114) to the first part (112).

5. The camera module according to claim 4, characterized in that: The elastic member (111) is a spring sheet, and lugs (1111) are provided at both ends of the spring sheet. A movable groove (13) is also provided on the first bracket (10), and the movable groove (13) is provided at both ends of the guide rail groove (11). The lug (1111) is movably connected to the first bracket (10) through the movable groove (13); When the elastic sheet undergoes elastic deformation, the lug (1111) moves in the movable groove (13).

6. The camera module according to claim 1, characterized in that: The elastic member (111) is a spring sheet, a deformation space is reserved between the spring sheet and the second part (113), and two ends of the spring sheet are respectively fixedly connected to the first part (112) and the third part (114).

7. The camera module according to claim 1, characterized in that: The elastic member (111) is arranged on the surface of the guide rail groove (11), and the elastic member (111) arranged on the surface of the second part (113) comprises a buffer part (111a) and a flat part (111b), the buffer part (111a) is close to the first part (112), the flat part (111b) is close to the third part (114), the slope of the buffer part (111a) is greater than the slope of the flat part (111b); the slope of the flat part (111b) is less than the slope of the third part (114); The camera module further comprises a cam (30), wherein the cam (30) comprises a first curvature portion (31); When the first curvature portion (31) abuts against the buffer portion (111a), the slope of the elastic member (111) in the second portion (113) becomes steeper; When the first curvature portion (31) is separated from the buffer portion (111a), the slope of the elastic member (111) in the second portion (113) becomes gentler.

8. The camera module according to claim 1, characterized in that: The camera module further comprises a cam (30), wherein the cam (30) comprises a first curvature portion (31) and a second curvature portion (32); When the first curvature portion (31) abuts against the elastic member (111), the slope of the elastic member (111) becomes steeper; When the second curvature portion (32) abuts against the elastic member (111), the slope of the elastic member (111) becomes gentler.

9. The camera module according to claim 8, characterized in that: Also includes a driving member (60) and a sensor (40); The driving member (60) is connected to the cam (30), and when triggered by a detection signal from the sensor (40), the driving member (60) controls the cam (30) to rotate in accordance with the moving direction of the guide column (21); When the guide column (21) moves from the third part (114) to the first part (112), the first curvature portion (31) of the cam (30) is out of contact with the elastic member (111), and the second curvature portion (32) is in contact with the elastic member (111); When the guide column (21) moves from the first part (112) to the third part (114), the first curvature portion (31) of the cam (30) abuts against the elastic member (111).

10. The camera module according to claim 8, characterized in that: A receiving cavity (12) is provided in the first bracket (10) at a position corresponding to the second part (113), and the receiving cavity (12) is provided with an opening in a direction toward the second part (113); The cam (30) is arranged in the accommodating cavity (12), and the cam (30) rotates in the accommodating cavity (12) so that the first curvature portion (31) or the second curvature portion (32) abuts against the elastic member (111) through the opening.

11. The camera module according to claim 1, characterized in that: The elastic member (111) is a spring sheet, a through hole (1113) is provided on the spring sheet, and the buffer medium layer (1112) is embedded with the spring sheet through the through hole (1113).

12. An electronic device, characterized in that: Comprising a camera module as described in any one of claims 1 to 11.

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