Camera module and electronic equipment

Abstract

The utility model provides a camera module and electronic equipment, and the camera module comprises a lens cone assembly, a first lens module, a driving assembly, a photosensitive chip, a second lens module and a circuit board, and the lens cone assembly is provided with a light incident end and a fixed end which are opposite to each other. The first lens module, the second lens module, the photosensitive chip and the circuit board are sequentially arranged in the lens barrel assembly at intervals in the direction from the light inlet end to the fixed end, the driving assembly is arranged in the lens barrel assembly and connected with the first lens module, and the driving assembly is used for driving the first lens module to move in the direction from the light inlet end to the fixed end. The circuit board is connected to the fixed end and is connected with the second lens module to form an accommodating cavity, and the photosensitive chip is located in the accommodating cavity.

Description

Technical Field

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

[0002] As users have higher and higher requirements for the shooting function of electronic devices, a driving component is usually provided in the camera module. The driving component can drive the lens in the camera module to move to adjust the focal length of the camera module, so that the photosensitive chip of the camera module can receive the light emitted from the lens. After receiving the light, the photosensitive chip can form an image to meet the user's shooting needs.

[0003] In the related art, since the driving assembly needs to drive the lens to move, movable parts are provided in the driving assembly. When the camera module is used, the movable parts in the driving assembly may collide with other parts in the camera module. The collision may cause debris to fall, and the debris will fall onto the photosensitive chip, which will cause black spots to appear in the captured image. Utility Model Content

[0004] The embodiments of the present application provide a camera module and an electronic device to solve the problem in the related art that a driving component is provided in the camera module, and the movement of the driving component may cause debris to fall onto the photosensitive chip, thereby causing black spots to appear in the captured image.

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

[0006] In a first aspect, an embodiment of the present application provides a camera module, the camera module comprising a barrel assembly, a first lens module, a driving assembly, a photosensitive chip, a second lens module and a circuit board, the barrel assembly having a light incident end and a fixed end opposite to each other, the first lens module, the second lens module, the photosensitive chip and the circuit board being sequentially arranged in the barrel assembly at intervals along a direction from the light incident end to the fixed end, the driving assembly being arranged in the barrel assembly and connected to the first lens module, the driving assembly being used to drive the first lens module to move along a direction from the light incident end to the fixed end;

[0007] The circuit board is connected to the fixed end and is connected to the second lens module to form a receiving cavity, and the photosensitive chip is located inside the receiving cavity.

[0008] In a second aspect, an embodiment of the present application provides an electronic device, which includes the camera module described in the first aspect.

[0009] In an embodiment of the present application, the camera module includes a lens barrel assembly, a first lens module, a driving assembly, a photosensitive chip, a second lens module and a circuit board, wherein the lens barrel assembly has a relative light incident end and a fixed end, and since the first lens module, the second lens module and the photosensitive chip are sequentially arranged in the lens barrel assembly along the direction from the light incident end to the fixed end, light can propagate from the light incident end to the fixed end, and during the propagation of light, light can sequentially pass through the first lens module and the second lens module to reach the photosensitive chip, and the photosensitive chip can form an image after receiving the light to realize the shooting function of the camera module. The driving assembly is arranged in the lens barrel assembly and connected to the first lens module, so the driving assembly can drive the first lens module to move along the direction from the light incident end to the fixed end, so that the position of the first lens module changes, thereby changing the focal length of the camera module. In the direction from the light incident end to the fixed end, the second lens module, the photosensitive chip and the circuit board are also arranged in sequence. Therefore, the photosensitive chip is located between the second lens module and the circuit board. Since the second lens module is connected to the circuit board to form a accommodating cavity, and the photosensitive chip is located inside the accommodating cavity, when the driving component drives the first lens module to move, even if debris is generated when the driving component moves, the debris can be blocked by the second lens module after falling, which can prevent the debris from entering the accommodating cavity and falling on the photosensitive chip, thereby avoiding the problem of black masses appearing in the image taken by the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 One of the structural diagrams of the camera module provided in the embodiment of the present application is shown;

[0011] Figure 2 One of the structural diagrams of the camera module provided in the embodiment of the present application is shown;

[0012] Figure 3 A schematic diagram showing a drive assembly provided in an embodiment of the present application;

[0013] Figure 4 One of the schematic diagrams showing the camera module provided in the embodiment of the present application;

[0014] Figure 5 One of the schematic diagrams showing the camera module provided in the embodiment of the present application;

[0015] Figure 6 A schematic diagram showing a lens barrel assembly and a first lens module provided in an embodiment of the present application;

[0016] Figure 7 A schematic diagram showing a second lens provided in an embodiment of the present application.

[0017] Reference numerals:

[0018] 100: camera module; 10: lens barrel assembly; 20: first lens module; 30: driving assembly; 40: photosensitive chip; 50: second lens module; 11: light input end; 12: fixed end; 31: driving coil; 32: magnetic part; 21: first sub-lens barrel; 22: first lens; 211: mounting groove; 33: ball bearing; 60: circuit board; 61: conductive part; 62: electronic device; 70: mounting part; 51: second sub-lens barrel; 52: second lens; 80: third lens module; 90: filter; 13: cut-off table; 14: protective cover body; 15: bracket; 34: driving carrier; 16: accommodating cavity. DETAILED DESCRIPTION

[0019] 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.

[0020] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0021] like Figures 1 to 7 As shown, the camera module 100 includes a barrel assembly 10, a first lens module 20, a driving assembly 30, a photosensitive chip 40, a second lens module 50 and a circuit board 60. The barrel assembly 10 has a relative light incident end 11 and a fixed end 12. The first lens module 20, the second lens module 50, the photosensitive chip 40 and the circuit board 60 are arranged in the barrel assembly 10 in sequence along the direction from the light incident end 11 to the fixed end 12. The driving assembly 30 is arranged in the barrel assembly 10 and is connected to the first lens module 20. The driving assembly 30 is used to drive the first lens module 20 to move along the direction from the light incident end 11 to the fixed end 12; the circuit board 60 is connected to the fixed end 12 and is connected to the second lens module 50 to form a accommodating cavity 16, and the photosensitive chip 40 is located inside the accommodating cavity 16.

[0022] In the embodiment of the present application, the camera module 100 includes a lens barrel assembly 10, a first lens module 20, a driving assembly 30, a photosensitive chip 40, a second lens module 50 and a circuit board 60, wherein the lens barrel assembly 10 has a relative light incident end 11 and a fixed end 12. Since the first lens module 20, the second lens module 50 and the photosensitive chip 40 are arranged in sequence in the lens barrel assembly 10 along the direction from the light incident end 11 to the fixed end 12, light can propagate from the light incident end 11 to the fixed end 12. During the propagation of light, the light can pass through the first lens module 20 and the second lens module 50 in sequence to reach the photosensitive chip 40. After receiving the light, the photosensitive chip 40 can form an image to realize the shooting function of the camera module 100. The driving assembly 30 is arranged in the lens barrel assembly 10 and connected to the first lens module 20. Therefore, the driving assembly 30 can drive the first lens module 20 to move along the direction from the light incident end 11 to the fixed end 12, so that the position of the first lens module 20 changes, thereby changing the focal length of the camera module 100. In the direction from the light incident end 11 to the fixed end 12, the second lens module 50, the photosensitive chip 40, and the circuit board 60 are also arranged in sequence. Therefore, the photosensitive chip 40 is located between the second lens module 50 and the circuit board 60. Since the second lens module 50 and the circuit board 60 are connected to form the accommodating cavity 16, and the photosensitive chip 40 is located inside the accommodating cavity 16, when the driving assembly 30 drives the first lens module 20 to move, even if debris is generated when the driving assembly 30 moves, the debris can be blocked by the second lens module 50 after falling, which can prevent the debris from entering the accommodating cavity 16 and falling on the photosensitive chip 40, thereby avoiding the problem of black masses appearing in the image captured by the camera module 100.

[0023] In addition, in the embodiment of the present application, the drive assembly 30 may be arranged in different ways, and the following two ways are taken as examples for illustration:

[0024] Method 1: If Figure 1 , Figure 2 , Figure 6 As shown, the driving assembly 30 includes a driving coil 31 and a magnetic member 32, the first lens module 20 includes a first sub-lens barrel 21 and a first lens 22, the first lens 22 is arranged in the first sub-lens barrel 21, and a mounting groove 211 is arranged on the outer wall of the first sub-lens barrel 21, the magnetic member 32 is fixed in the mounting groove 211, the driving coil 31 is connected to the lens barrel assembly 10, and the magnetic member 32 is opposite to the driving coil 31, and the driving coil 31 is used to drive the magnetic member 32 to move, so that the magnetic member 32 drives the first lens module 20 to move along the direction from the light incident end 11 to the fixed end 12.

[0025] The first lens module 20 includes a first sub-lens barrel 21 and a first lens 22. The first lens 22 is arranged in the first sub-lens barrel 21. The first sub-lens barrel 21 can be arranged in the lens barrel assembly 10 to realize the installation of the first lens module 20. The driving assembly 30 includes a driving coil 31 and a magnetic member 32. A mounting groove 211 is arranged on the outer wall of the first sub-lens barrel 21. The magnetic member 32 is fixed in the mounting groove 211. The driving coil 31 is connected to the lens barrel assembly 10. Since the magnetic member 32 is opposite to the driving coil 31, the driving coil 31 can drive the magnetic member 32 to move, so that the magnetic member 32 can drive the first lens module 20 to move in the direction from the light incident end 11 to the fixed end 12, so that the position of the first lens module 20 can be adjusted, so that the focal length of the camera module 100 can be adjusted.

[0026] Method 2: If Figure 3 As shown, the driving assembly 30 includes a driving coil 31, a magnetic member 32 and a driving carrier 34, the first lens module 20 includes a first sub-lens barrel 21 and a first lens 22, and the first lens 22 is arranged in the first sub-lens barrel 21; the driving carrier 34 is fixed to the outer wall of the first sub-lens barrel 21, the magnetic member 32 is embedded in the driving carrier 34, the driving coil 31 is connected to the lens barrel assembly 10, and the magnetic member 32 is opposite to the driving coil 31, and the driving coil 31 is used to drive the magnetic member 32 to move, so that the magnetic member 32 drives the first lens module 20 to move along the direction from the light incident end 11 to the fixed end 12 through the driving carrier 34.

[0027] The first lens module 20 includes a first sub-lens barrel 21 and a first lens 22. The first lens 22 is arranged in the first sub-lens barrel 21. The first sub-lens barrel 21 can be arranged in the barrel assembly 10 to realize the installation of the first lens module 20. The driving assembly 30 includes a driving coil 31, a magnetic member 32 and a driving carrier 34. The driving carrier 34 is fixed on the outer wall of the first sub-lens barrel 21. The magnetic member 32 is embedded in the driving carrier 34. The driving coil 31 is connected to the barrel assembly 10. Since the magnetic member 32 is opposite to the driving coil 31, the driving coil 31 can drive the magnetic member 32 to move. Since the magnetic member 32 is embedded in the driving carrier 34, the magnetic member 32 can drive the driving carrier 34 to move when it moves. The driving carrier 34 is fixed to the outer wall of the first sub-lens barrel 21. Therefore, when the magnetic member 32 drives the driving carrier 34 to move, the driving carrier 34 can also drive the first lens module 20 to move, so that the position of the first lens module 20 can be adjusted, so that the focal length of the camera module 100 can be adjusted.

[0028] It should be noted that the magnetic part 32 is a magnetic component, for example, it can be a magnet, specifically, it can be a neodymium iron boron permanent magnet, a ferrite magnet, a samarium cobalt magnet, an aluminum nickel cobalt magnet, etc. The specific material of the magnetic part 32 is not specifically limited in the embodiment of the present application.

[0029] It should also be noted that the number of the first lenses 22 can be multiple, such as 2, 3, etc. Of course, the number of the first lenses 22 can also be 1. The specific value of the first lenses 22 is not specifically limited in the embodiment of the present application.

[0030] In addition, in some embodiments, Figures 1 to 6 As shown, the driving assembly 30 may further include a ball 33, which is disposed between the first sub-barrel 21 and the barrel assembly 10 and is rotatably connected to the barrel assembly 10. The ball 33 abuts against the first sub-barrel 21. When the driving coil 31 drives the magnetic component 32 to move, the ball 33 rotates, and the first sub-barrel 21 moves relative to the ball 33.

[0031] The driving assembly 30 also includes a ball 33, which is arranged between the first sub-lens barrel 21 and the lens barrel assembly 10, and is rotatably connected to the lens barrel assembly 10. Since the ball 33 abuts against the first lens module 20, when the driving assembly 30 moves the first lens module 20, the ball 33 can rotate relative to the lens barrel assembly 10. At the same time, the first sub-lens barrel 21 can move relative to the ball 33, that is, when the driving coil 31 drives the magnetic part 32 to move, the ball 33 rotates, and the first sub-lens barrel 21 moves relative to the ball 33. The setting of the ball 33 can guide the first sub-lens barrel 21 when the first sub-lens barrel 21 moves, so that the movement of the first lens module 20 is smooth, thereby improving the imaging quality of the camera module 100.

[0032] It should be noted that a track for the movement of the ball 33 can be provided on the outer wall of the first sub-barrel 21. When the ball 33 moves relative to the first sub-barrel 21, the first sub-barrel 21 can move in the track, which can further improve the stability of the movement of the first lens module 20.

[0033] It should also be noted that the ball 33 can also be arranged in other ways. For example, the ball 33 is arranged between the first sub-barrel 21 and the barrel assembly 10. The ball 33 is rotatably connected to the first sub-barrel 21, and the ball 33 abuts against the barrel assembly 10. When the driving coil 31 drives the magnetic part 32 to move, the ball 33 can rotate relative to the first sub-barrel 21, and the ball 33 can move relative to the barrel assembly 10.

[0034] In addition, in some embodiments, Figure 1 , Figure 2 As shown, the photosensitive chip 40 can be connected to the circuit board 60 , and a conductive member 61 is provided on the lens barrel assembly 10 , one end of the conductive member 61 is electrically connected to the driving coil 31 , and the other end of the conductive member 61 is electrically connected to the circuit board 60 .

[0035] The photosensitive chip 40 is connected to the circuit board 60, and the circuit board 60 can provide an electrical signal to the photosensitive chip 40 so that the photosensitive chip 40 can work normally, so that the photosensitive chip 40 can form an image and realize the shooting function. A conductive member 61 is provided on the lens barrel assembly 10. Since one end of the conductive member 61 is electrically connected to the driving coil 31, and the other end of the conductive member 61 is electrically connected to the circuit board 60, the conductive member 61 can realize the electrical connection between the driving coil 31 and the circuit board 60, so that the conductive member 61 can transmit the electrical signal to the driving coil 31. After the driving coil 31 receives the electrical signal, the driving coil 31 generates magnetic flux lines, and the magnetic member 32 can move under the action of the magnetic flux lines, so that the magnetic member 32 can drive the first lens module 20 to move.

[0036] It should be noted that the conductive part 61 can be set on the inner wall of the lens barrel assembly 10, and the driving coil 31 can also be set on the inner wall of the lens barrel assembly 10. On the one hand, it can facilitate the connection between the conductive part 61 and the driving coil 31. On the other hand, the conductive part 61 can also be set inside the camera module 100, which can protect the conductive part 61 and make the use of the camera assembly safer. Of course, the conductive part 61 can also be set on the outer wall of the lens barrel assembly 10, and an additional structure can be set to connect the conductive part 61 and the driving coil 31.

[0037] In addition, in some embodiments, Figure 2 As shown, the camera assembly may further include a mounting member 70, the photosensitive chip 40 is connected to the circuit board 60, the mounting member 70 is disposed on the circuit board 60 and surrounds the photosensitive chip 40, and the mounting member 70 protrudes from the photosensitive chip 40 in the direction from the fixed end 12 to the light incident end 11; the second lens module 50 is connected to the mounting member 70, and the second lens module 50, the mounting member 70, and the circuit board 60 enclose a accommodating cavity 16.

[0038] The photosensitive chip 40 is connected to the circuit board 60, and the circuit board 60 can provide an electrical signal to the photosensitive chip 40 so that the photosensitive chip 40 can work normally, so that the photosensitive chip 40 can form an image and realize the shooting function. The camera assembly also includes a mounting member 70, which is also arranged on the circuit board 60 and surrounds the photosensitive chip 40, that is, the mounting member 70 is arranged on the periphery of the photosensitive chip 40. Since the mounting member 70 protrudes from the photosensitive chip 40 in the direction from the fixed end 12 to the light incident end 11, the end of the mounting member 70 away from the circuit board 60 is higher than the end of the photosensitive chip 40 away from the circuit board 60, or in other words, the distance between the end of the mounting member 70 away from the circuit board 60 and the circuit board 60 is greater than the distance between the end of the photosensitive chip 40 away from the circuit board 60 and the circuit board 60. The second lens module 50 can be connected to the mounting member 70 so that there is a distance between the second lens module 50 and the photosensitive chip 40. When the second lens module 50 blocks the debris, the debris can fall on the second lens module 50. Since there is a distance between the second lens module 50 and the photosensitive chip 40, the distance between the fallen debris and the photosensitive chip 40 can be made larger. According to the black mass imaging principle, the closer the foreign matter is to the photosensitive chip 40, the easier it is to form a black mass. The setting of the mounting member 70 can make the distance between the debris and the photosensitive chip 40 larger, which can further avoid the problem of black mass appearing during shooting.

[0039] In the present application, the mounting member 70 is disposed on the circuit board 60 and surrounds the photosensitive chip 40, and the second sub-lens barrel 51 is connected to the mounting member 70, so the second sub-lens barrel 51, the mounting member 70, and the circuit board 60 can be enclosed to form the above-mentioned accommodating chamber 16. The accommodating chamber 16 is a closed cavity. The photosensitive chip 40 can be located in the accommodating chamber 16, and the mounting member 70 and the second sub-lens barrel 51 can protect the photosensitive chip 40 from different directions. The second sub-lens barrel 51 can block the debris along the direction from the light incident end 11 to the fixed end 12, and the mounting member 70 can block the foreign matter on the surface where the circuit board 60 is located from entering the closed chamber, and the photosensitive chip 40 can be protected from different directions, thereby improving the display effect of the camera module 100 and further avoiding the appearance of black masses when shooting. Specifically, in order to make the camera module 100 work properly, the circuit board 60 is also provided with electronic devices 62 in addition to the photosensitive chip 40. The electronic devices 62 are usually connected to the circuit board 60 by solder paste or the like. When connecting the electronic devices 62, some foreign matter such as solder paste may fall on the photosensitive chip 40. The closed chamber formed by the mounting part 70, the second sub-lens barrel 51, and the circuit board 60 can block the foreign matter, thereby preventing foreign matter from falling on the photosensitive chip 40 during the assembly and installation of the camera module 100, which would cause the problem of black spots when shooting.

[0040] In order to prevent foreign matter outside the camera module 100 from entering the lens barrel assembly 10 , the circuit board 60 can block the fixed end 12 .

[0041] It should be noted that the second lens module 50 may include a second sub-lens barrel 51 and a second lens 52. The second lens 52 is disposed in the second sub-lens barrel 51. The second sub-lens barrel 51 may be disposed in the lens barrel assembly 10, so that the second lens module 50 may be disposed in the lens barrel assembly 10. Specifically, the second sub-lens barrel 51 may be connected to the mounting member 70, and the second lens 52 is located on a side of the photosensitive chip 40 away from the circuit board 60. The second lens 52 may block debris to prevent the debris from falling on the photosensitive chip 40. The second sub-lens barrel 51, the second lens 52, the mounting member 70, and the circuit board 60 may form the above-mentioned accommodating cavity 16.

[0042] In the embodiment of the present application, the second lens module 50 includes a second sub-lens barrel 51 and a second lens 52, that is, the second lens module 50 also includes a lens, and can also be used as a lens module in the camera module 100, working together with the first lens module 20. Multiple lens modules can make the focal length adjustment range of the camera module 100 larger.

[0043] It should also be noted that, in the embodiment of the present application, the second sub-lens barrel 51 and the mounting member 70 are two separate components, the mounting member 70 is arranged on the circuit board 60, and the second lens module 50 is connected to the circuit board 60 through the second sub-lens barrel 51; alternatively, the second sub-lens barrel 51 can also be integrally formed with the mounting member 70, and the second lens module 50 is connected to the circuit board 60 through the mounting member 70.

[0044] In addition, the camera module 100 needs to perform optical signal processing such as shrinking light and correcting color through lenses, and the lenses are related to the image quality. In the case where the second lens module 50 includes a second sub-lens barrel 51 and a second lens 52, the second lens 52 can have the function of shrinking light and correcting color, and cooperate with the first lens module 20 to perform optical signal processing, thereby increasing the focal length adjustment range of the camera module 100. Of course, the second lens module 50 can also be other light-transmitting components, such as glass sheets, which can also be used to block foreign objects and avoid the problem of black masses appearing in the captured image.

[0045] In addition, the arrangement of the mounting member 70 and the second sub-lens barrel 51 can seal the photosensitive chip 40, and the distance between the mounting member 70 and the photosensitive chip 40 can be smaller, so that the cavity for sealing the photosensitive chip 40 can be smaller, and the electronic device 62 in the cavity is also smaller, which can reduce the risk of producing black masses.

[0046] In addition, in some embodiments, Figure 2As shown, the lens module may further include a third lens module 80 , which is disposed in the lens barrel assembly 10 and is located on a side of the first lens module 20 away from the photosensitive chip 40 , and the third lens module 80 seals the light input end 11 .

[0047] The lens module also includes a third lens module 80, which is arranged in the lens barrel assembly 10 and is located on the side of the first lens module 20 away from the photosensitive chip 40. Since the third lens module 80 seals the light input end 11, the setting of the third lens module 80 can protect the photosensitive chip 40 on the side of the light input end 11. The first lens module 20 can avoid the problem of foreign matter from the outside entering the interior of the lens barrel assembly 10 through the light input end 11 during the process of transporting the camera module 100 or assembling the camera module 100 in an electronic device, thereby preventing the problem of foreign matter from the outside falling on the photosensitive chip 40.

[0048] In addition, the third lens module 80 works together with the first lens module 20, and multiple lens modules can make the focal length adjustment range of the camera module 100 larger. In the case where the second lens module 50 also includes the second sub-lens barrel 51 and the second lens 52, the lens module is provided with three groups of lens modules, which can further improve the focal length adjustment range of the camera module 100. In the embodiment of the present application, the camera module 100 is provided with multiple independently arranged lens modules, namely the first lens module 20, the third lens module 80 and the second lens module 50. When the camera module 100 is set, the lens originally set as a whole can be split into multiple lens modules, which reduces the manufacturing difficulty of the lens module, improves the overall yield of the lens, and reduces the module cost. Among them, the number of the second lens 52 can be multiple, such as 2, 3, etc. Of course, the number of the second lens 52 can also be 1. For the specific value of the second lens 52, the embodiment of the present application is not specifically limited here. Similarly, the number of lenses in the third lens module 80 can also be multiple, or 1.

[0049] Moreover, in the present application, the driving assembly 30 is connected to the first lens module 20. Compared with the setting of multiple lens modules as an integral whole, the driving assembly 30 in the present application only drives the first lens module 20 to move, so that the driving force required by the motor is reduced, thereby reducing the weight of the driving assembly 30. Correspondingly, when setting the driving assembly 30, the corresponding size design can be minimized, which is conducive to the miniaturization of the camera module 100, and also reduces the power consumption of the driving motor when it is working.

[0050] It should be noted that the present application sequentially arranges the third lens module 80, the first lens module 20, and the second lens module 50 from the light incident end 11 to the fixed end 12. The sizes of the third lens module 80, the first lens module 20, and the second lens module 50 can be increased sequentially, that is, the size of the third lens module 80 is the smallest, and the size of the second lens module 50 is the largest. Correspondingly, when the lens barrel assembly 10 is arranged, the size of the portion of the lens barrel assembly 10 where the third lens module 80 is arranged can also be the smallest, and the size of the portion of the lens barrel assembly 10 where the second lens module 50 is arranged can also be the largest, so that the camera module 100 presents a stepped shape with a small top and a large bottom, which can facilitate the assembly of the camera module 100 in the whole machine. Among them, the upper side of the camera module 100 is the side of the camera module 100 close to the light incident end 11, and the lower side of the camera module 100 is the side of the camera module 100 close to the fixed end 12. Among them, a connecting piece can be provided at the upper end of the lens barrel assembly 10, and the connecting piece is a hollow structure. The connecting piece of the hollow structure forms a light input end 11, and the third lens module 80 can be connected to the inner wall of the connecting piece; or, an opening is provided at the upper end of the lens barrel assembly 10, and the opening can form the light input end 11, and the third lens module 80 can also be arranged on the surface of the lens barrel assembly 10 where the opening is provided.

[0051] In addition, the second lens module 50 is located on the side close to the light incident end 11, and the size of the second lens module 50 is the largest. In the case where the second lens module 50 includes a second sub-lens and a second lens 52, in order to further reduce the size of the camera module 100, the second lens 52 can be trimmed. Figure 7 As shown. The shape of the photosensitive chip 40 is generally rectangular, while the shape of the lens is generally circular. In order to allow the circular lens to cover the working area of ​​the rectangular photosensitive chip 40 that can be used for photosensitivity, the circular lens generally needs to be made larger, and a portion of the lens will be wasted at the edge of the lens. The present application trims the edge of the second lens 52, which can make the size of the second lens 52 larger, and can reduce the size of the lower part of the camera module 100, which is conducive to the miniaturization design of the camera module 100.

[0052] It should also be noted that the third lens module 80 can also be replaced by other components. For example, it can be a light-transmitting component, such as a glass sheet. The light-transmitting component is arranged in the lens barrel assembly 10 and seals the light input end 11. The light-transmitting component can also block foreign objects from the outside.

[0053] In addition, in some embodiments, Figure 1 , Figure 2As shown, the camera module 100 may further include a filter 90, which is disposed in the lens barrel assembly 10, and the filter 90 is located between the first lens module 20 and the third lens module 80, or between the first lens module 20 and the second lens module 50.

[0054] The camera module 100 also includes a filter 90, which is disposed in the lens barrel assembly 10. The filter 90 is located between the first lens module 20 and the third lens module 80, or between the first lens module 20 and the second lens module 50. The filter 90 can filter out stray light and improve imaging quality.

[0055] It should be noted that the lens barrel assembly 10 can be a stepped structure with a small top and a large bottom. In this case, the filter 90 can be arranged between the first lens module 20 and the third lens module 80. Specifically, it can be attached to the upper surface or the lower surface of the first lens module 20, or it can also be attached to the upper surface or the lower surface of the third lens module 80, or it can also be connected to the inner wall of the lens barrel assembly 10 between the first lens module 20 and the second lens. Since the lens barrel assembly 10 is a stepped structure with a small top and a large bottom, and the filter 90 can be arranged between the first lens module 20 and the third lens module 80, the size of the filter 90 can be made smaller, which is conducive to the miniaturization design of the filter 90 and can reduce the production cost of the camera module 100.

[0056] In addition, in some embodiments, Figure 2 , Figure 4 , Figure 5 As shown, a cut-off platform 13 may be connected to the inner wall of the lens barrel assembly 10, and the cut-off platform 13 is located between the first lens module 20 and the second lens module 50. In the direction from the light incident end 11 to the fixed end 12, the projection of the cut-off platform 13 partially overlaps with the projection of the first lens module 20. When the first lens module 20 moves along the direction from the light incident end 11 to the fixed end 12, the cut-off platform 13 limits the first lens module 20.

[0057] A cut-off platform 13 is connected to the inner wall of the lens barrel assembly 10, and the cut-off platform 13 is located between the first lens module 20 and the second lens module 50. Since the projection of the cut-off platform 13 partially overlaps with the projection of the first lens module 20 in the direction from the light incident end 11 to the fixed end 12, when the first lens module 20 moves in the direction from the light incident end 11 to the fixed end 12, the first lens module 20 can move to a position abutting against the cut-off platform 13, and at this time, the cut-off platform 13 can limit the first lens module 20, such as Figure 4As shown, the first lens module 20 is prevented from continuing to move in the direction from the light incident end 11 to the fixed end 12, thereby preventing the first lens module 20 from moving and colliding with the second lens module 50, causing damage to the second lens module 50. That is, in the present application, the first lens module 20 can limit the movement of the first lens module 20, preventing the movement of the first lens module 20 from causing damage to other components in the camera module 100.

[0058] It should be noted that the second lens module 50 can be connected to the cut-off platform 13, that is, the two ends of the second lens module 50 are respectively connected to the cut-off platform 13 and the mounting member 70, and the third lens module 80 is connected to the lens barrel assembly 10 and seals the light input end 11. Specifically, the third lens module 80 can be connected to the inner wall of the lens barrel assembly 10, or can be connected to the end of the lens barrel assembly 10. At this time, the third lens module 80, the lens barrel assembly 10, and the second lens module 50 can also form a cavity. The cavity formed by the third lens module 80, the lens barrel assembly 10, and the second lens module 50 can seal the first lens module 20 and the driving assembly 30 to prevent the debris generated when the driving assembly 30 moves from moving out of the cavity. On the one hand, it can prevent the debris from falling onto the photosensitive chip 40. On the other hand, it can also prevent the problem of debris moving out of the camera module 100 and falling into the electronic device after the camera module 100 is installed in the electronic device.

[0059] It should also be noted that when the lens barrel assembly 10 is a structure with a small top and a large bottom, the lens barrel assembly 10 itself can also limit the first lens module 20 in the direction from the fixed end 12 to the light incident end 11, such as Figure 5 shown.

[0060] In addition, in some embodiments, the lens barrel assembly 10 can be a protective cover, which is arranged outside the first lens module 20, the second lens module 50, the third lens module 80, and the driving assembly 30, and can protect the first lens module 20, the second lens module 50, the third lens module 80, and the driving assembly 30 inside, and prevent the first lens module 20, the second lens module 50, the third lens module 80, and the driving assembly 30 from being exposed and easily damaged. The bottom of the protective cover is connected to the circuit board 60, and the outer wall of the second lens module 50 and the outer wall of the mounting member 70 can also form a cavity with the inner wall of the protective cover. The electronic device 62 on the circuit board 60 located on the side of the mounting member 70 away from the photosensitive chip 40 can be located in the cavity formed by the outer wall of the second lens module 50, the outer wall of the mounting member 70, and the inner wall of the protective cover, and the part of the electronic device 62 can be protected. In order to facilitate the production of the protective cover, the protective cover may include a bracket 15 and a protective cover body 14. The protective cover body 14 and the bracket 15 are arranged and connected along the direction from the light incident end 11 to the fixed end 12. The bracket 15 is connected to the circuit board 60. The first lens module 20 is arranged inside the protective cover body 14. The drive coil 31 is arranged and connected to the inner wall of the protective cover body 14. The second lens module 50 and the photosensitive chip 40 are arranged inside the bracket 15. The bracket 15 supports the protective cover body 14, and the protective cover body 14 can be arranged on the circuit board 60, and the electrical signal can be transmitted to the protective cover body 14. Of course, the bracket 15 and the protective cover body 14 can also be an integrated structure. The specific formation of the protective cover is not specifically limited in the embodiment of the present application.

[0061] In the embodiment of the present application, the camera module 100 includes a lens barrel assembly 10, a first lens module 20, a driving assembly 30, a photosensitive chip 40, a second lens module 50 and a circuit board 60, wherein the lens barrel assembly 10 has a relative light incident end 11 and a fixed end 12. Since the first lens module 20, the second lens module 50 and the photosensitive chip 40 are arranged in sequence in the lens barrel assembly 10 along the direction from the light incident end 11 to the fixed end 12, light can propagate from the light incident end 11 to the fixed end 12. During the propagation of light, the light can pass through the first lens module 20 and the second lens module 50 in sequence to reach the photosensitive chip 40. After receiving the light, the photosensitive chip 40 can form an image to realize the shooting function of the camera module 100. The driving assembly 30 is arranged in the lens barrel assembly 10 and connected to the first lens module 20. Therefore, the driving assembly 30 can drive the first lens module 20 to move along the direction from the light incident end 11 to the fixed end 12, so that the position of the first lens module 20 changes, thereby changing the focal length of the camera module 100. In the direction from the light incident end 11 to the fixed end 12, the second lens module 50, the photosensitive chip 40, and the circuit board 60 are also arranged in sequence. Therefore, the photosensitive chip 40 is located between the second lens module 50 and the circuit board 60. Since the second lens module 50 and the circuit board 60 are connected to form the accommodating cavity 16, and the photosensitive chip 40 is located inside the accommodating cavity 16, when the driving assembly 30 drives the first lens module 20 to move, even if debris is generated when the driving assembly 30 moves, the debris can be blocked by the second lens module 50 after falling, which can prevent the debris from entering the accommodating cavity 16 and falling on the photosensitive chip 40, thereby avoiding the problem of black masses appearing in the image captured by the camera module 100.

[0062] In addition, an embodiment of the present application further proposes an electronic device, which includes the camera module 100 in any of the above embodiments.

[0063] The camera module 100 is provided so that the electronic device has a shooting function. The camera module 100 is provided with a driving component 30, which can drive the first lens module 20 to move, so that the focal length of the camera module 100 can be changed to meet the shooting needs of the user. The second lens module 50 is arranged between the first lens module 20 and the photosensitive chip 40. Since the second lens module 50 is connected with the circuit board 60 to form the accommodating cavity 16, and the photosensitive chip 40 is located inside the accommodating cavity 16, when the driving component 30 drives the first lens module 20 to move, even if debris is generated when the driving component 30 moves, the debris can be blocked by the second lens module 50 after falling, thereby preventing the debris from falling onto the photosensitive chip 40, and further avoiding the problem of black masses appearing in the image taken by the camera module 100.

[0064] It should be noted that the electronic device may be a variety of devices that can be provided with the camera module 100, including but not limited to mobile phones, tablet computers, laptop computers, PDAs, drones, vehicles and other terminals. When the electronic device is a vehicle, the vehicle may have a smart cockpit, and the vehicle-mounted camera inside the smart cockpit may be the above-mentioned camera module 100. The specific type of the electronic device is not specifically limited in the embodiments of the present application.

[0065] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0066] Although the optional embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including optional embodiments and all changes and modifications that fall within the scope of the present application.

[0067] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the article or terminal device including the elements. The technical solution provided by the present application is introduced in detail above. The principles and implementation methods of the present application are explained in this article using specific examples. At the same time, for those skilled in the art, according to the principles and implementation methods of the present application, there will be changes in the specific implementation methods and scope of application. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A camera module, characterized in that: The camera module comprises a lens barrel assembly, a first lens module, a driving assembly, a photosensitive chip, a second lens module and a circuit board, the lens barrel assembly has a light incident end and a fixed end opposite to each other, the first lens module, the second lens module, the photosensitive chip and the circuit board are sequentially arranged in the lens barrel assembly along a direction from the light incident end to the fixed end, the driving assembly is arranged in the lens barrel assembly and connected to the first lens module, and the driving assembly is used to drive the first lens module to move along a direction from the light incident end to the fixed end; The circuit board is connected to the fixed end and is connected with the second lens module to form a accommodating cavity, and the photosensitive chip is located inside the accommodating cavity.

2. The camera module according to claim 1, characterized in that: The driving assembly includes a driving coil and a magnetic part. The first lens module includes a first sub-barrel and a first lens. The first lens is arranged in the first sub-barrel. An installation groove is arranged on the outer wall of the first sub-barrel. The magnetic part is fixed in the installation groove. The driving coil is connected to the barrel assembly, and the magnetic part is opposite to the driving coil. The driving coil is used to drive the magnetic part to move so that the magnetic part drives the first lens module to move along the direction from the light incident end to the fixed end.

3. The camera module according to claim 2, characterized in that: The driving assembly also includes a ball, which is arranged between the first sub-barrel and the barrel assembly and is rotatably connected to the barrel assembly. The ball abuts against the first sub-barrel. When the driving coil drives the magnetic part to move, the ball rotates and the first sub-barrel moves relative to the ball.

4. The camera module according to claim 2, characterized in that: The photosensitive chip is connected to the circuit board. A conductive member is provided on the lens barrel assembly. One end of the conductive member is electrically connected to the driving coil, and the other end of the conductive member is electrically connected to the circuit board.

5. The camera module according to claim 1, characterized in that: The camera module further includes a mounting member, the photosensitive chip is connected to the circuit board, the mounting member is arranged on the circuit board and surrounds the photosensitive chip, and the mounting member protrudes from the photosensitive chip in the direction from the fixed end to the light incident end; The second lens module is connected to the mounting member, and the second lens module, the mounting member, and the circuit board together form the accommodating cavity.

6. The camera module according to claim 1, characterized in that: The lens module also includes a third lens module, which is arranged in the lens barrel assembly and located on a side of the first lens module away from the photosensitive chip, and the third lens module seals the light incident end.

7. The camera module according to claim 6, characterized in that: The camera module also includes a filter, which is arranged in the lens barrel assembly. The filter is located between the first lens module and the third lens module, or between the first lens module and the second lens module.

8. The camera module according to claim 1, characterized in that: A cutoff platform is connected to the inner wall of the lens barrel assembly, and the cutoff platform is located between the first lens module and the second lens module. In the direction from the light incident end to the fixed end, the projection of the cutoff platform overlaps with the projection of the first lens module. When the first lens module moves in the direction from the light incident end to the fixed end, the cutoff platform limits the first lens module.

9. The camera module according to claim 1, characterized in that: The driving assembly includes a driving coil, a magnetic member and a driving carrier, the first lens module includes a first sub-barrel and a first lens, and the first lens is arranged in the first sub-barrel; The driving carrier is fixed to the outer wall of the first sub-lens barrel, the magnetic part is embedded in the driving carrier, the driving coil is connected to the lens barrel assembly, and the magnetic part is opposite to the driving coil, and the driving coil is used to drive the magnetic part to move, so that the magnetic part drives the first lens module to move along the direction from the light incident end to the fixed end through the driving carrier.

10. An electronic device, characterized in that: The electronic device comprises the camera module according to any one of claims 1-9.

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