Camera module and electronic device

Abstract

The application discloses a camera module and an electronic device. The disclosed camera module comprises a shell (100), a lens (200), a buffer mechanism (300) and a driving mechanism (400). The lens (200) is movably arranged in the shell (100). The buffer mechanism (300) and the driving mechanism (400) are both arranged in the shell (100). The buffer mechanism (300) and the driving mechanism (400) are respectively connected with the lens (200). The driving mechanism (400) is used to drive the lens (200) to move along the optical axis direction of the lens (200) to focus. The buffer mechanism (300) is used to adjust the resistance that the lens (200) receives when moving along the optical axis direction through mutual cooperation with the lens (200). The above scheme can alleviate the problem that the related art camera module has a lens that is difficult to move along the optical axis direction and focus stably.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic device design, and particularly relates to a camera module and an electronic device. BACKGROUND

[0002] With the development of science and technology, electronic devices are increasingly rich in functions. Electronic devices usually have a camera module to meet the shooting needs of users. The lens in the camera module is usually movably arranged in the shell of the camera module. The driving mechanism of the camera module drives the lens to move along the optical axis direction of the lens to enable focusing. Users usually shoot in different directions in actual use, which makes the lens receive different resistances when focusing, so that the lens is difficult to move along the optical axis direction stably when driving the lens to focus, and it is difficult to focus stably. SUMMARY

[0003] The application discloses a camera module and an electronic device to alleviate the problem that the lens in the camera module is difficult to move along the optical axis direction stably and focus stably.

[0004] To solve the above technical problems, the application provides the following technical solutions:

[0005] In a first aspect, the application discloses a camera module, which comprises a shell, a lens, a buffer mechanism and a driving mechanism.

[0006] The lens is movably arranged in the shell, the buffer mechanism and the driving mechanism are arranged in the shell, and the buffer mechanism and the driving mechanism are connected to the lens respectively. The driving mechanism is used to drive the lens to move along the optical axis direction of the lens to focus. The buffer mechanism is used to adjust the resistance received by the lens when moving along the optical axis direction through mutual cooperation with the lens.

[0007] In a second aspect, the application discloses an electronic device, which comprises a shell and the camera module described above. The camera module is arranged in the shell.

[0008] The technical solutions adopted by the application can achieve the following technical effects:

[0009] The camera module disclosed by the embodiment of the present application improves the structure of the camera module related to the prior art, sets the buffer mechanism in the shell, and connects the buffer mechanism with the lens, so that the resistance of the lens moving along the optical axis direction can be adjusted through the cooperation between the buffer mechanism and the lens, the lens can be buffered by adjusting the resistance of the lens moving along the optical axis direction, and the lens can move along the optical axis direction more stably, and then the lens can focus more stably. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 FIG. 1 is a structural schematic diagram of the camera module disclosed by the embodiment of the present application;

[0011] Fig. 2 FIG. 2 is a partial structural schematic diagram of the camera module disclosed by the embodiment of the present application;

[0012] Fig. 3 FIG. 3 is another partial structural schematic diagram of the camera module disclosed by the embodiment of the present application.

[0013] BRIEF DESCRIPTION OF DRAWINGS

[0014] 100 - shell,

[0015] 200 - lens,

[0016] 300 - buffer mechanism, 310 - first buffer part, 311 - first coil, 312 - first magnetic part, 320 - second buffer part, 321 - second coil, 322 - second magnetic part, 330 - third buffer part, 331 - third coil, 332 - third magnetic part,

[0017] 400 - driving mechanism, 410 - fourth coil, 420 - fourth magnetic part,

[0018] 500 - rolling body,

[0019] 600 - detector,

[0020] 700 - controller,

[0021] 800 - photosensitive chip. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely in combination with the specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of these terms herein is merely for distinguishing between the objects and the terms first, second, etc. have the meaning explicitly associated with them in the context of the specification as a whole. It is further noted that the embodiments and the examples, which could have been described with either the articles "a" or "an", may also be possible. The articles "a" and "an" are used herein in the context of the specification as a whole to refer to one or more. The terms "and / or" and "or" as used herein refer to one or more of the items connected by these terms. The term "and / or" as used herein refers to and encompasses any and all permutations of one or more of the associated listed items. The term "or" is used in the context of the specification as a whole to mean an inclusive "or" unless the context clearly indicates to the contrary.

[0024] In the description of the present application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Please refer to Figs. 1 to 3 The embodiment of the present application discloses a camera module, the disclosed camera module comprises a shell 100, a lens 200, a buffer mechanism 300 and a driving mechanism 400.

[0026] The shell 100 is the basic component of the camera module, which is used to provide mounting positions for other components of the camera module, wherein the lens 200, the buffer mechanism 300 and the driving mechanism 400 are all arranged in the shell 100. In addition, the shell 100 is also used to form some functional spaces or structures.

[0027] The lens 200 is movably arranged in the shell 100, so as to be able to move relative to the shell 100, thereby being able to focus. The buffer mechanism 300 and the driving mechanism 400 are both arranged in the shell 100, and the buffer mechanism 300 and the driving mechanism 400 are respectively connected with the lens 200. The driving mechanism 400 is used to drive the lens 200 to move along the optical axis direction of the lens 200 to focus, thereby realizing the focusing function. The buffer mechanism 300 is used to adjust the resistance that the lens 200 receives when moving along the optical axis direction through the mutual cooperation with the lens 200, so as to increase the resistance that the lens 200 receives when moving along the optical axis direction, so that the lens 200 can more stably move along the optical axis direction.

[0028] In a specific use process, the user can shoot in different directions, which makes the gravity direction of the lens 200 relative to the moving direction of the lens 200 have different inclination angles when the lens 200 moves along the optical axis direction, so that the influence of gravity on the movement of the lens 200 along the optical axis direction and the influence of the friction of the shell 100 on the movement of the lens 200 along the optical axis direction are not the same. It should be noted that as the inclination angle decreases, the resistance force generated by the influence of gravity on the movement of the lens 200 along the optical axis direction decreases.

[0029] In the camera module related to the related art, as the inclination angle decreases, the resistance force generated by the influence of gravity on the movement of the lens 200 along the optical axis direction decreases, so that the resistance on the movement of the lens 200 along the optical axis direction is smaller, which makes the process of driving the lens 200 to move along the optical axis direction by the driving mechanism 400 so that the lens 200 reaches the focusing position prone to the situation that the lens 200 continues to move along the optical axis direction after reaching the focusing position, which causes the lens 200 to easily collide with the shell 100 and produce abnormal sound.

[0030] In the embodiment of the present application, the resistance on the movement of the lens 200 along the optical axis direction can be increased by the mutual cooperation between the buffer mechanism 300 and the lens 200, so that the buffer can be performed by adjusting the resistance on the movement of the lens 200 along the optical axis direction. In a specific adjustment process, the resistance on the movement of the lens 200 along the optical axis direction can be increased as the inclination angle decreases, so that the buffer can be better performed.

[0031] The camera module disclosed in the embodiment of the present application improves the structure of the camera module related to the related art, sets the buffer mechanism 300 on the shell 100, and connects the buffer mechanism 300 with the lens 200, so that the resistance on the movement of the lens 200 along the optical axis direction can be adjusted by the mutual cooperation between the buffer mechanism 300 and the lens 200, so that the buffer can be performed by adjusting the resistance on the movement of the lens 200 along the optical axis direction, so that the lens 200 can move along the optical axis direction more stably, and the lens 200 can focus more stably.

[0032] In addition, the buffer mechanism 300 adjusts the resistance on the movement of the lens 200 along the optical axis direction by cooperating with the lens 200, so that the lens 200 can move along the optical axis direction more stably, so that the lens 200 can reach the focusing position more stably, and the problem that the lens 200 is prone to continue to move along the optical axis direction after reaching the focusing position, which causes the lens 200 to easily collide with the shell 100 and produce abnormal sound, can be avoided as much as possible, which is beneficial to improve the user experience.

[0033] Of course, the user will carry out activities in the process of using the electronic device, which causes the lens 200 to easily shake with the activities of the user, so that the lens 200 has the problem of colliding with the shell 100 to produce abnormal sound. In the case where the camera module further includes the detector 600 and the controller 700 described below, when the lens 200 shakes, the detector 600 can detect that there is an included angle between the actual moving direction of the lens 200 and the direction of gravity, and the controller 700 can adjust the resistance according to the included angle, so that the resistance that the lens 200 moves along the optical axis direction can be adjusted when the lens 200 shakes, so that better buffering can be performed to avoid the lens 200 easily shaking with the activities of the user to collide with the shell 100, so that abnormal sound is easily produced.

[0034] In one embodiment, the driving mechanism 400 can include a fourth coil 410 and a fourth magnetic member 420, the fourth coil 410 can be fixedly connected to the shell 100, and the fourth magnetic member 420 can be fixedly connected to the lens 200, so that the driving mechanism 400 can drive the lens 200 to move through the cooperation between the fourth coil 410 and the fourth magnetic member 420. Specifically, the fourth magnetic member 420 can be an aluminum-nickel alloy or a ferrite, and the embodiments of the present application do not limit this.

[0035] In a further technical solution, the buffering mechanism 300 can include a first buffering part 310, the first buffering part 310 can include a first coil 311 and a first magnetic member 312, the first coil 311 can be arranged on the shell 100, so that the first coil 311 can be fixed to the shell 100 to facilitate electrical connection of the first coil 311, and the first magnetic member 312 can be arranged on the lens 200. Specifically, the first magnetic member 312 can be an aluminum-nickel alloy or a ferrite, and the embodiments of the present application do not limit this.

[0036] The first coil 311 can be used to generate a first magnetic force with the first magnetic member 312, and the pressure between the lens 200 and the shell 100 in the direction perpendicular to the optical axis direction can be adjusted through the first magnetic force, and the friction of the shell 100 that the lens 200 moves along the optical axis direction can be adjusted, wherein the resistance can include the friction. Such a structure realizes electromagnetic driving through the cooperation between the first coil 311 and the first magnetic member 312, can more efficiently adjust the pressure between the lens 200 and the shell 100 in the direction perpendicular to the optical axis direction, and can avoid direct contact between the first coil 311 and the first magnetic member 312, thereby reducing the wear between the first coil 311 and the first magnetic member 312, and prolonging the service life.

[0037] Specifically, as shown in Fig. 3 the first magnetic force can be a magnetic repulsion force, Fig. 3The direction indicated by the middle arrow is the direction of the first magnetic force. Of course, the first magnetic force can also be magnetic attraction. The embodiments of the present application do not limit this.

[0038] In the specific working process, the pressure between the lens 200 and the shell 100 in the direction perpendicular to the optical axis can be increased to adjust, so that the friction between the lens 200 and the shell 100 during the movement of the lens 200 along the optical axis can be increased, so as to increase the friction of the shell 100 on the movement of the lens 200 along the optical axis.

[0039] In the specific adjustment process, the pressure between the lens 200 and the shell 100 in the direction perpendicular to the optical axis can be increased as the inclination angle decreases, so that the friction between the lens 200 and the shell 100 during the movement of the lens 200 along the optical axis can be increased as the inclination angle decreases, so that the friction of the shell 100 on the movement of the lens 200 along the optical axis can be increased as the inclination angle decreases, so as to better buffer.

[0040] In the optional technical solution, the camera module can further include a rolling body 500, the rolling body 500 can be arranged between the lens 200 and the shell 100, and the lens 200 can move along the optical axis by rolling of the rolling body 500, so that the rolling contact between the rolling body 500 and the shell 100 and the lens 200 respectively can reduce the wear between the lens 200 and the shell 100, thereby facilitating prolonging the service life of the shell 100 and the lens 200. Specifically, the rolling body 500 can be a ball or a needle, and the embodiments of the present application do not limit this. Of course, in order to improve the uniformity of stress distribution, the rolling body 500 can be multiple, and the multiple rolling bodies can be distributed around the lens 200 at intervals.

[0041] In the embodiments of the present application, the buffer mechanism 300 can include at least one of a second buffer portion 320 and a third buffer portion 330, the second buffer portion 320 can include a second coil 321 and a second magnetic member 322, and the third buffer portion 330 can include a third coil 331 and a third magnetic member 332. Specifically, the second magnetic member 322 and the third magnetic member 332 can both be aluminum-nickel alloy or ferrite, and the embodiments of the present application do not limit this.

[0042] The second coil 321 can be arranged on the housing 100, so that the second coil 321 can be fixed on the housing 100, to facilitate the installation of the second coil 321, and to avoid the wind problem caused by the activity of the second coil 321 and easy to cause poor contact. The second magnetic member 322 can be arranged on the lens 200, the second coil 321 can be used to generate a second magnetic force with the second magnetic member 322, and the resistance can include the second magnetic force. That is, in this case, the second magnetic force can act on the lens 200 along the optical axis direction, to adjust the resistance received by the lens 200 moving along the optical axis direction, so that the resistance received by the lens 200 moving along the optical axis direction can be adjusted more directly, so that the buffering can be more efficient.

[0043] The third coil 331 can be arranged on the housing 100, so that the third coil 331 can be fixed on the housing 100, to facilitate the installation of the third coil 331, and to avoid the wind problem caused by the activity of the third coil 331 and easy to cause poor contact. The third magnetic member 332 can be arranged on the lens 200, the third coil 331 can be used to generate a third magnetic force with the third magnetic member 332, and the resistance can include the third magnetic force. That is, in this case, the third magnetic force can act on the lens 200 along the optical axis direction, to adjust the resistance received by the lens 200 moving along the optical axis direction, so that the resistance received by the lens 200 moving along the optical axis direction can be adjusted more directly, so that the buffering can be more efficient.

[0044] Specifically, one of the second magnetic force and the third magnetic force can be magnetic attraction force, and the other can be magnetic repulsion force. In the specific adjustment process, the second magnetic force and the third magnetic force can respectively increase the resistance received by the lens 200 moving along the optical axis direction, to achieve buffering.

[0045] As described above, in this structure, electromagnetic driving is realized through the cooperation between the second magnetic member 322 and the second coil 321 or between the third magnetic member 332 and the third coil 331, so as to adjust the resistance received by the lens 200 moving along the optical axis direction, thereby facilitating to improve the driving efficiency and to reduce the driving noise.

[0046] In one embodiment, the second coil 321 and the second magnetic member 322 can be distributed along the optical axis direction, to facilitate the cooperation between the second coil 321 and the second magnetic member 322, and the driving member 400 can drive the lens 200 to move along the optical axis direction to drive the second magnetic member 322 to approach or move away from the second coil 321.

[0047] In a specific working process, in the case that the lens 200 moves away from the photosensitive chip 800 of the camera module and drives the second magnetic member 322 to move close to the second coil 321, the second magnetic force can be magnetic repulsion, so as to avoid the second magnetic member 322 and the second coil 321 from continuing to move close to each other through the magnetic repulsion, thereby increasing the resistance that the lens 200 receives when moving along the optical axis direction, and further achieving buffering.

[0048] In the case that the lens 200 moves close to the photosensitive chip 800 and drives the second magnetic member 322 to move away from the second coil 321, the second magnetic force can be magnetic attraction, so as to avoid the second magnetic member 322 and the second coil 321 from continuing to move away from each other through the magnetic attraction, thereby increasing the resistance that the lens 200 receives when moving along the optical axis direction, and further achieving buffering.

[0049] Of course, the second magnetic force can increase as the inclination angle decreases, so that the resistance that the lens 200 receives when moving along the optical axis direction can increase as the inclination angle decreases.

[0050] Such a structure can increase the resistance that the lens 200 receives when moving along the optical axis direction by switching the second magnetic force between magnetic attraction and magnetic repulsion through the second buffering portion 320 when the lens 200 moves along the optical axis direction to drive the second magnetic member 322 to move close to or away from the second coil 321, thereby achieving buffering and enabling the second buffering portion 320 to be more fully utilized.

[0051] In another embodiment, the third coil 331 and the third magnetic member 332 can be distributed along the optical axis direction, thereby facilitating cooperation between the third coil 331 and the third magnetic member 332, and the lens 200 can drive the third magnetic member 332 to move close to or away from the third coil 331 by moving along the optical axis direction.

[0052] In a specific working process, in the case that the lens 200 moves close to the photosensitive chip 800 of the camera module and drives the third magnetic member 332 to move close to the third coil 331, the third magnetic force can be magnetic repulsion, so as to avoid the third coil 331 and the third magnetic member 332 from continuing to move close to each other through the magnetic repulsion, thereby being able to increase the resistance that the lens 200 receives when moving along the optical axis direction, to achieve buffering.

[0053] In the case that the lens 200 moves away from the photosensitive chip 800 and drives the third magnetic member 332 to move away from the third coil 321, the third magnetic force can be magnetic attraction, so as to avoid the third coil 331 and the third magnetic member 332 from continuing to move away from each other through the magnetic attraction, thereby being able to increase the resistance that the lens 200 receives when moving along the optical axis direction, to achieve buffering.

[0054] Of course, the third magnetic force can increase as the tilt angle decreases, so that the resistance to movement of the lens 200 along the optical axis direction can increase as the tilt angle decreases.

[0055] This structure enables the resistance to movement of the lens 200 along the optical axis direction to increase by switching the third magnetic force between magnetic attraction and magnetic repulsion when the lens 200 moves along the optical axis direction to drive the third magnetic member 332 to approach or move away from the third coil 331, thereby achieving buffering, so that the third buffering portion 330 can be more fully utilized.

[0056] In a feasible technical solution, the second buffering portion 320 and the third buffering portion 330 can be distributed on both sides of the lens 200 along the optical axis direction, so that the lens 200 can drive the second magnetic member 322 to approach the second coil 321 while driving the third magnetic member 332 to move away from the third coil 331 by moving along the optical axis direction, and the lens 200 can drive the second magnetic member 322 to move away from the second coil 321 while driving the third magnetic member 332 to approach the third coil 331 by moving along the optical axis direction.

[0057] In a specific working process, when the lens 200 moves away from the photosensitive chip 800 of the camera module and drives the second magnetic member 322 to approach the second coil 321 and the third magnetic member 332 to move away from the third coil 331, the second magnetic force can be magnetic repulsion, and the third magnetic force can be magnetic attraction. This structure increases the resistance to movement of the lens 200 along the optical axis direction by avoiding the second magnetic member 322 and the second coil 321 from continuing to approach each other through the second magnetic force, and avoiding the third coil 331 and the third magnetic member 332 from continuing to move away from each other through the third magnetic force, so that when one of the second buffering portion 320 and the third buffering portion 330 fails, the other can still work normally, thereby improving the reliability of the buffering mechanism 300 to more stably buffer.

[0058] Of course, when the lens 200 moves away from the photosensitive chip 800 of the camera module and drives the second magnetic member 322 to approach the second coil 321 and the third magnetic member 332 to move away from the third coil 331, the second magnetic force can be magnetic repulsion to avoid the second magnetic member 322 and the second coil 321 from continuing to approach each other through the magnetic repulsion, thereby increasing the resistance to movement of the lens 200 along the optical axis direction, and further achieving buffering. This structure can avoid the third magnetic member 332 and the third coil 331 from generating the third magnetic force, thereby facilitating energy saving.

[0059] In other embodiments, in the case that the lens 200 moves away from the photosensitive chip 800 of the camera module and drives the second magnetic element 322 to move close to the second coil 321 and drives the third magnetic element 332 to move away from the third coil 331, the third magnetic force can be magnetic attraction force, so as to avoid the third coil 331 and the third magnetic element 332 from continuing to move away from each other by the magnetic attraction force, thereby increasing the resistance that the lens 200 receives when moving along the optical axis direction, so as to achieve buffering. Such a structure can avoid the second magnetic element 322 and the second coil 321 from generating the second magnetic force, thereby facilitating reduction of energy consumption.

[0060] In the case that the lens 200 moves close to the photosensitive chip 800 of the camera module and drives the second magnetic element 322 to move away from the second coil 321 and drives the third magnetic element 332 to move close to the third coil 331, the second magnetic force can be magnetic attraction force and the third magnetic force can be magnetic repulsion force. Such a structure increases the resistance that the lens 200 receives when moving along the optical axis direction by avoiding the second magnetic element 322 and the second coil 321 from continuing to move away from each other by the second magnetic force and avoiding the third coil 331 and the third magnetic element 332 from continuing to move close to each other by the third magnetic force, so that when one of the second buffering portion 320 and the third buffering portion 330 fails, the other one can still work normally, thereby improving the reliability of the buffering mechanism 300, so as to be able to buffer more stably.

[0061] Of course, in the case that the lens 200 moves close to the photosensitive chip 800 of the camera module and drives the second magnetic element 322 to move away from the second coil 321 and drives the third magnetic element 332 to move close to the third coil 331, the second magnetic force can be magnetic attraction force, so as to avoid the second magnetic element 322 and the second coil 321 from continuing to move away from each other by the magnetic attraction force, thereby increasing the resistance that the lens 200 receives when moving along the optical axis direction, and then achieving buffering. Such a structure can avoid the third magnetic element 332 and the third coil 331 from generating the third magnetic force, thereby facilitating reduction of energy consumption.

[0062] In other embodiments, in the case that the lens 200 moves close to the photosensitive chip 800 of the camera module and drives the second magnetic element 322 to move away from the second coil 321 and drives the third magnetic element 332 to move close to the third coil 331, the third magnetic force can be magnetic repulsion force. Such a structure can avoid the second magnetic element 322 and the second coil 321 from generating the second magnetic force, thereby facilitating reduction of energy consumption.

[0063] In the embodiment of the present application, the camera module can further include a detector 600 and a controller 700, both of which can be arranged in the housing 100. The detector 600 can be electrically connected to the controller 700. The detector 600 can be configured to detect an included angle between the actual moving direction of the lens 200 and the direction of gravity. The controller 700 can be configured to adjust the resistance according to the included angle. The resistance can be inversely proportional to the included angle, and the resistance can decrease as the included angle increases. This structure can more efficiently and accurately adjust the resistance that the lens 200 receives when moving along the optical axis direction, thereby better buffering.

[0064] Specifically, when the included angle is 0 degree, the actual moving direction of the lens 200 is the same as the direction of gravity. In this case, the resistance can be increased, and the resistance can reach a maximum value, thereby more effectively buffering. When the included angle is 90 degrees, the actual moving direction of the lens 200 is perpendicular to the direction of gravity. In this case, the resistance can be reduced to avoid affecting the normal movement of the lens 200 while buffering. In addition, when the included angle is 180 degrees, the actual moving direction of the lens 200 is opposite to the direction of gravity. In this case, the resistance can be reduced, and the resistance can reach a minimum value, thereby better buffering and avoiding affecting the normal movement of the lens 200.

[0065] Of course, in the case where the resistance includes friction, the controller 700 can be configured to adjust the friction according to the included angle, thereby changing the size of the resistance.

[0066] In a further technical solution, the detector 600 can include a gravity sensor. The gravity sensor can be configured to determine the moving direction by detecting the position information of the lens 200 to determine the included angle, thereby facilitating the controller 700 to control the buffering mechanism 300 to adjust the resistance that the lens 200 receives when moving along the optical axis direction according to different included angles. Specifically, the position information detected by the gravity sensor can be the acceleration, relative displacement, or the like of the lens 200. In addition, the detector 600 can further include a gyroscope, which can detect the position information of the lens 200 to determine the moving direction.

[0067] Optionally, in the case where the camera module includes the first buffer portion 310, the second buffer portion 320, and the third buffer portion 330, the detector 600, the first coil 311, the second coil 321, and the third coil 331 can be electrically connected to the controller 700, respectively, the detector 600 can be configured to detect the moving direction of the lens 200 moving along the optical axis direction, and can be configured to feed back the moving direction to the controller 700, and the controller 700 can be configured to control the buffer mechanism 300 to control the first coil 311, the second coil 321, and the third coil 331, respectively, according to different moving directions, so as to adjust the resistance to the movement of the lens 200 along the optical axis direction. Specifically, the controller 700 can be a driving chip.

[0068] Based on the camera module disclosed in the embodiments of the present application, the present application further discloses an electronic device, which includes a housing and the camera module of any one of the above embodiments, and the camera module is arranged in the housing.

[0069] In the examples of the present application, the electronic device can be a mobile phone, a tablet computer, a notebook computer, a smart wearable device, an electronic book reader, an electronic game console, or the like, and the embodiments of the present application do not limit the specific types of the electronic device.

[0070] In the above embodiments of the present application, the focus is on the differences between the various embodiments, and the different optimization features of the various embodiments can be combined to form a more optimal embodiment as long as they are not contradictory. In view of the brevity of the writing, further description is omitted here.

[0071] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative rather than limiting, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims, which all belong to the protection of the present application.

Claims

1. An image capturing module, comprising: The camera module comprises a shell (100), a lens (200), a buffer mechanism (300) and a driving mechanism (400); The lens (200) is movably arranged in the shell (100), the buffer mechanism (300) and the driving mechanism (400) are arranged in the shell (100), and the buffer mechanism (300) and the driving mechanism (400) are connected with the lens (200) respectively, the driving mechanism (400) is used for driving the lens (200) to move along the optical axis direction of the lens (200) to focus, and the buffer mechanism (300) is used for adjusting the frictional force of the shell (100) on the movement of the lens (200) along the optical axis direction by cooperating with the lens (200). The buffer mechanism (300) comprises a first buffer part (310), the first buffer part (310) comprises a first coil (311) and a first magnetic part (312), the first coil (311) is arranged in the shell (100), and the first magnetic part (312) is arranged in the lens (200). The first coil (311) is used for generating a first magnetic force with the first magnetic part (312), the pressure between the lens (200) and the shell (100) in the direction perpendicular to the optical axis direction is adjusted by the first magnetic force, and the frictional force of the shell (100) on the movement of the lens (200) along the optical axis direction is adjusted, and the resistance comprises the frictional force.

2. The camera module of claim 1, wherein, The camera module further comprises a rolling body (500), the rolling body (500) is arranged between the lens (200) and the shell (100), and the lens (200) moves along the optical axis direction by rolling of the rolling body (500).

3. The camera module of claim 1, wherein, The buffer mechanism (300) comprises at least one of a second buffer part (320) and a third buffer part (330), the second buffer part (320) comprises a second coil (321) and a second magnetic part (322), and the third buffer part (330) comprises a third coil (331) and a third magnetic part (332); The second coil (321) is arranged in the shell (100), the second magnetic part (322) is arranged in the lens (200), the second coil (321) is used for generating a second magnetic force with the second magnetic part (322), and the resistance comprises the second magnetic force; The third coil (331) is arranged in the shell (100), the third magnetic part (332) is arranged in the lens (200), the third coil (331) is used for generating a third magnetic force with the third magnetic part (332), the resistance comprises the third magnetic force, one of the second magnetic force and the third magnetic force is magnetic attraction force, and the other is magnetic repulsion force.

4. The camera module of claim 3, wherein, The second coil (321) and the second magnetic part (322) are distributed along the optical axis direction, and the driving mechanism (400) drives the lens (200) to move along the optical axis direction to drive the second magnetic part (322) to approach or move away from the second coil (321). In a case that the lens (200) is away from the photosensitive chip (800) of the camera module and drives the second magnetic member (322) to be close to the second coil (321), the second magnetic force is magnetic repulsion. In a case that the lens (200) is close to the photosensitive chip (800) and drives the second magnetic member (322) to be away from the second coil (321), the second magnetic force is magnetic attraction.

5. The camera module of claim 3, wherein, The third coil (331) and the third magnetic member (332) are distributed along the optical axis direction, and the lens (200) drives the third magnetic member (332) to be close to or away from the third coil (331) by moving along the optical axis direction; In a case that the lens (200) is close to the photosensitive chip (800) of the camera module and drives the third magnetic member (332) to be close to the third coil (331), the third magnetic force is magnetic repulsion. In a case that the lens (200) is away from the photosensitive chip (800) and drives the third magnetic member (332) to be away from the third coil (331), the third magnetic force is magnetic attraction.

6. The camera module of claim 3, wherein, The second buffer part (320) and the third buffer part (330) are distributed on both sides of the lens (200) along the optical axis direction; In a case that the lens (200) is away from the photosensitive chip (800) of the camera module and drives the second magnetic member (322) to be close to the second coil (321) and drives the third magnetic member (332) to be away from the third coil (331), the second magnetic force is magnetic repulsion and the third magnetic force is magnetic attraction; In a case that the lens (200) is close to the photosensitive chip (800) and drives the second magnetic member (322) to be away from the second coil (321) and drives the third magnetic member (332) to be close to the third coil (331), the second magnetic force is magnetic attraction and the third magnetic force is magnetic repulsion.

7. The camera module of claim 1, wherein, The camera module further comprises a detector (600) and a controller (700), the detector (600) is used for detecting an included angle between an actual moving direction of the lens (200) and a direction of gravity, and the controller (700) is used for adjusting the resistance according to the included angle, the resistance being inversely proportional to the included angle.

8. The camera module of claim 7, wherein, The detector (600) comprises a gravity sensor, and the gravity sensor is used for determining the included angle by detecting position information of the lens (200).

9. An electronic device, comprising: The camera module comprises a shell and the camera module according to any one of claims 1-8, and the camera module is arranged in the shell. The camera module comprises a shell and the camera module according to any one of claims 1-8, and the camera module is arranged in the shell.

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