Camera module and electronic equipment

Abstract

The utility model discloses a camera module and electronic equipment, the camera module comprises a shell, a lens assembly, a circuit board and an image sensor, the shell comprises a lens barrel, and the lens barrel extends along a first direction; the lens assembly is arranged in the lens barrel; the circuit board is connected with the shell, a mounting hole is formed in the circuit board, the extension direction of the mounting hole is parallel to the extension direction of the lens cone, and the mounting hole directly faces the lens assembly; and the image sensor is arranged in the mounting hole and is electrically connected with the processor on the circuit board. According to the technical scheme, the occupied space of the camera module can be reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of camera technology, and in particular to a camera module and an electronic device. Background Art

[0002] Electronic devices are usually equipped with camera modules for video calls, taking photos, recording videos, face recognition, object recognition and tracking, etc. In the related art, the size of the camera module increases with the increase of resolution. However, the space for installing the camera module on the electronic device is limited. When the resolution of the camera module is increased, the camera module is difficult to install. Utility Model Content

[0003] In a first aspect, the present application provides a camera module, which includes a shell, a lens assembly, a circuit board and an image sensor, wherein the shell includes a lens barrel, which extends along a first direction; the lens assembly is arranged in the lens barrel; the circuit board is connected to the shell, and a mounting hole is provided on the circuit board, the extension direction of the mounting hole is arranged parallel to the extension direction of the lens barrel, and the mounting hole is arranged opposite to the lens assembly; the image sensor is arranged in the mounting hole and is electrically connected to the processor on the circuit board.

[0004] The camera module provided by the present application includes a housing, a lens assembly, a circuit board and an image sensor, wherein the housing includes a lens barrel. The lens assembly is arranged in the lens barrel to generate an optical image and project the generated optical image onto the image sensor; the image sensor is used to convert the optical signal of the optical image into an electrical signal and transmit the electrical signal to the circuit board; the processor on the circuit board processes the electrical signal to realize the normal operation of the camera module. On this basis, a mounting hole is provided on the circuit board, the mounting hole and the lens barrel are both extended along the first direction, and the mounting hole is arranged opposite to the lens assembly, and the image sensor is arranged in the mounting hole, so that the size of the image sensor and the circuit board in the first direction can be reduced, thereby reducing the occupied space of the camera module. Compared with the related art, the installation of the camera module is difficult due to the large size of the camera module. In the camera module provided by the present application, a mounting hole is provided on the circuit board, and the mounting hole is arranged opposite to the lens assembly, and the image sensor is arranged in the mounting hole, so that the size of the image sensor and the circuit board in the first direction can be reduced, thereby reducing the occupied space of the camera module and avoiding the installation difficulty caused by the large size of the camera module.

[0005] In a possible implementation of the present application, the mounting hole is a stepped hole, and the image sensor is fixed on a stepped surface of the stepped hole.

[0006] In a possible implementation of the present application, the step hole includes a small diameter section and a large diameter section connected to each other, and the small diameter section is arranged close to the lens assembly, and the image sensor is fixed on the step surface between the small diameter section and the large diameter section.

[0007] In a possible implementation of the present application, the camera module further includes a filtering structure, and the filtering structure is attached to a side of the circuit board facing the lens assembly.

[0008] In a possible implementation of the present application, in the first direction, the projection of the lens assembly entirely falls on the image sensor.

[0009] In a possible implementation of the present application, a light hole is provided on the lens barrel, and the light hole has a first end and a second end that are relatively arranged, the first end is arranged close to the image sensor, and the lens of the lens assembly is installed in the light hole. In the second direction, the size at the first end and the size of the lens at the first end are the same as the size of the image sensor, and the second direction is arranged perpendicular to the first direction.

[0010] In a possible implementation of the present application, in the third direction, support surfaces are provided on both sides of the first end to support the lens disposed at the first end, and the first direction and the second direction are both disposed perpendicular to the third direction.

[0011] In a possible implementation of the present application, the cross-sectional area of ​​the lens barrel gradually decreases in a direction away from the image sensor.

[0012] In a possible implementation of the present application, the distance between the side of the lens assembly facing away from the image sensor and the image sensor is in a range of 2.8 mm to 3 mm.

[0013] In a second aspect, the present application provides an electronic device, which includes a device body and a camera module provided in any one of the first aspects, and the camera module is arranged on the device body.

[0014] The electronic device provided by the present application, because it includes the camera module provided by any one of the first aspects, has the same technical effect, that is, it can reduce the space occupied by the camera module, making the camera thinner and lighter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a camera module provided in an embodiment of the present application (first example);

[0016] Figure 2 A schematic diagram of the structure of a camera module provided in an embodiment of the present application (second example);

[0017] Figure 3 A schematic diagram of the structure of a circuit board provided in an embodiment of the present application;

[0018] Figure 4 A front view of a housing provided in an embodiment of the present application (first example);

[0019] Figure 5 for Figure 4 Side view of

[0020] Figure 6 for Figure 4 A top view of

[0021] Figure 7 for Figure 4 Bottom view of

[0022] Figure 8 is a schematic diagram of the structure of the lens at the first end of the light hole;

[0023] Fig. 9 is a schematic diagram of projection of a lens assembly on an image sensor (first example);

[0024] Fig.10 for Fig. 9 Schematic diagram of light passing through the lens assembly and projected onto the image sensor;

[0025] Fig.11 is a schematic diagram of projection of a lens assembly on an image sensor (second example);

[0026] Fig.12 An axonometric view of a housing provided in an embodiment of the present application (second example);

[0027] Fig.13 for Fig.12 Side view of

[0028] Fig.14 Schematic diagram of the matching between the lens barrel and the assembly hole.

[0029] Reference numerals:

[0030] 1-shell; 11-lens barrel; 111-light hole; 1111-first end; 1112-second end; 112-rounded structure; 113-support surface; 2-lens assembly; 21-lens; 3-circuit board; 31-processor; 32-mounting hole; 321-small diameter section; 322-large diameter section; 4-image sensor; 5-connector; 6-filter structure; 61-filter plate; 62-support pad; 7-support member; 8-reinforcement plate; 9-assembly hole. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0033] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0034] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0035] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0036] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0037] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0038] In the embodiments of the present application, directions are marked in the drawings for the convenience of describing directions, wherein the first direction is the height direction of the camera module, i.e., the extension direction of the lens barrel 11 and the mounting hole 32; the second direction is the width direction of the camera module, i.e., the width direction of the image sensor 4; the third direction is the length direction of the camera module, i.e., the length direction of the image sensor 4, and the first direction, the second direction and the third direction are perpendicular to each other. It should be noted that the direction markings are only used to describe the present application, but are not used to limit the scope of the present application.

[0039] Electronic devices are usually equipped with camera modules for video calls, taking photos, recording videos, face recognition, object recognition and tracking, etc. In the related art, the size of the camera module increases with the increase of resolution. However, the space for installing the camera module on the electronic device is limited. When the resolution of the camera module is increased, the camera module is difficult to install.

[0040] To this end, an embodiment of the present application provides an electronic device. Here, it should be explained that the electronic device mentioned in the embodiment of the present application can be a laptop computer, a tablet, a mobile phone, a computer host such as an all-in-one (All In One, AIO), a television, or a game console, and the embodiment of the present application does not limit this. In an implementable manner provided in the embodiment of the present application, the electronic device can be a laptop computer.

[0041] The electronic device provided in the embodiment of the present application includes a device body and a camera module, and the camera module is arranged on the device body. The camera module provided in the embodiment of the present application realizes a light and thin design, which can reduce the space occupied by the camera module, thereby avoiding the installation difficulty caused by the camera module being too large.

[0042] Reference Figure 1 and Figure 2 The embodiment of the present application also provides a camera module, which includes a shell 1, a lens assembly 2, a circuit board 3 and an image sensor 4. The shell 1 includes a lens barrel 11, and the lens barrel 11 is extended along a first direction; the lens assembly 2 is arranged in the lens barrel 11; the circuit board 3 is connected to the shell 1, and a mounting hole 32 is provided on the circuit board 3. The extension direction of the mounting hole 32 is parallel to the extension direction of the lens barrel 11, and the mounting hole 32 is arranged opposite to the lens assembly 2; the image sensor 4 is arranged in the mounting hole 32 and is electrically connected to the processor 31 on the circuit board 3.

[0043] The camera module provided by the embodiment of the present application includes a housing 1, a lens assembly 2, a circuit board 3 and an image sensor 4, wherein the housing 1 includes a lens barrel 11. The lens assembly 2 is arranged in the lens barrel 11 to generate an optical image and project the generated optical image onto the image sensor 4; the image sensor 4 is used to convert the optical signal of the optical image into an electrical signal and transmit the electrical signal to the circuit board 3; the processor 31 on the circuit board 3 processes the electrical signal, thereby realizing the normal operation of the camera module. On this basis, a mounting hole 32 is provided on the circuit board 3, the mounting hole 32 and the lens barrel 11 are both extended along the first direction, and the mounting hole 32 is arranged opposite to the lens assembly 2, and the image sensor 4 is arranged in the mounting hole 32, so that the size of the image sensor 4 and the circuit board 3 in the first direction can be reduced, thereby reducing the occupied space of the camera module. Compared with the related art, the installation of the camera module is difficult due to the large size of the camera module. In the camera module provided in the present application, a mounting hole 32 is provided on the circuit board 3, and the mounting hole 32 is arranged opposite to the lens assembly 2, and the image sensor 4 is arranged in the mounting hole 32. In this way, the size of the image sensor 4 and the circuit board 3 in the first direction can be reduced, thereby reducing the space occupied by the camera module and avoiding the installation difficulty caused by the excessive size of the camera module.

[0044] It should be noted that in the embodiment of the present application, the lens assembly 2 includes at least two lenses 21. In the first direction, at least two lenses 21 are arranged at intervals in the lens barrel 11. There are many possibilities for the number of lenses 21 in the lens assembly 2. For example, the number of lenses 21 in the lens assembly 2 can be two, three, or four, which is not limited in the embodiment of the present application. Figure 1 In one possible implementation provided in an embodiment of the present application, the number of lenses 21 in the lens assembly 2 is four.

[0045] In the embodiment of the present application, the function of the processor 31 on the circuit board 3 is to process the electrical signal generated by the image sensor 4. The processor 31 can convert the electrical signal into a digital image signal and process the digital image signal. These processing processes may include color correction, image enhancement, noise reduction, anti-shake, etc. The structural design of the processor 31 has many possibilities. The processor 31 can be an image signal processing chip (Image Signal Processing, ISP) or a system on chip (System on chip, SOC), which is not limited in the embodiment of the present application.

[0046] In the embodiment of the present application, the housing 1 and the circuit board 3 can be directly connected or indirectly connected. When the housing 1 and the circuit board 3 are directly connected, the connection between the housing 1 and the circuit board 3 can be achieved by bonding, clamping or fastener connection, etc., and the embodiment of the present application does not limit this. Figure 1 In an implementable method provided in an embodiment of the present application, the housing 1 and the circuit board 3 are indirectly connected, and the camera module includes a connector 5, and the housing 1 and the circuit board 3 are connected through the connector 5.

[0047] In the embodiment of the present application, the function of the mounting hole 32 is to mount the image sensor 4. Therefore, the structural design of the mounting hole 32 has many possibilities. For example, the mounting hole 32 can be a stepped hole, a through hole, or a blind hole, which is not limited in the embodiment of the present application. In addition, the shape of the cross section of the mounting hole 32 can also have many possibilities. For example, the shape of the cross section of the mounting hole 32 can be circular, square, or triangular, which is not limited in the embodiment of the present application.

[0048] Reference Figure 1 and Figure 3 In one possible implementation provided in the embodiment of the present application, the mounting hole 32 is a stepped hole, and the image sensor 4 is fixed at the stepped surface of the stepped hole. In this way, the stepped surface of the stepped hole can provide support for the image sensor 4. When installing the image sensor 4, there is no need to set a supporting structure in the mounting hole 32, which facilitates the installation of the image sensor 4.

[0049] Further, refer to Figure 1 and Figure 3 In the embodiment of the present application, the step hole includes a small diameter section 321 and a large diameter section 322 that are connected to each other, and the small diameter section 321 is arranged close to the lens assembly 2, and the image sensor 4 is fixed at the step surface between the small diameter section 321 and the large diameter section 322. In this way, after the housing 1 is connected to the circuit board 3, the large diameter section 322 of the step hole is located on the side of the circuit board 3 that is away from the housing 1. When installing the image sensor 4, the image sensor 4 can be directly fixed at the step surface through the large diameter section 322, which improves the flexibility of installing the image sensor 4. When disassembling the image sensor 4, the image sensor 4 can be directly removed through the large diameter section 322 without separating the circuit board 3 from the housing 1, which facilitates the disassembly of the image sensor 4.

[0050] In the embodiment of the present application, when the image sensor 4 is disposed in the mounting hole 32 , the image sensor 4 may be entirely located in the mounting hole 32 , or may be partially located in the mounting hole 32 , and the embodiment of the present application does not impose any limitation on this.

[0051] Reference Figure 1 and Figure 3In an implementable manner provided in an embodiment of the present application, in the first direction, the size of the large diameter section 322 is larger than the size of the image sensor 4, so that the image sensor 4 can be completely located in the mounting hole 32. In this way, on the one hand, the space occupied by the circuit board 3 and the image sensor 4 can be minimized, and on the other hand, the mounting hole 32 can provide protection for the image sensor 4 to prevent the image sensor 4 from malfunctioning due to collision.

[0052] In the embodiment of the present application, the camera module further includes a filtering structure 6, which is disposed between the lens assembly 2 and the image sensor 4 in the first direction, so that the optical image generated by the lens assembly 2 is projected onto the image sensor 4 through the filtering structure 6. The function of the filtering structure 6 is to filter out infrared light of a specific wavelength band to improve the quality and clarity of the image.

[0053] In the embodiment of the present application, there are many possible configuration modes of the filter structure 6. For example, referring to Figure 2 The camera module also includes a support member 7, and the filter structure 6 is supported and arranged on the support member 7, so that the filter structure 6 and the circuit board 3 are spaced apart in the first direction.

[0054] Reference Figure 1 In the embodiment of the present application, the camera module further includes a filter structure 6, which is attached to the side of the circuit board 3 facing the lens assembly 2. Here, since the image sensor 4 is disposed in the mounting hole 32, the filter structure 6 can be attached to the circuit board 3, so that, on the one hand, the space occupied by the filter structure 6 can be reduced in the first direction; on the other hand, since the filter structure 6 is attached to the circuit board 3, when the filter structure 6 is set, there is no need to separately set a support member 7 for the filter structure 6, which improves the convenience of setting the filter structure 6.

[0055] In the embodiment of the present application, the filter structure 6 can be directly attached to the circuit board 3 in various ways. For example, the filter structure 6 includes a filter sheet 61, and the filter sheet 61 is directly attached to the circuit board 3. Figure 1 In one possible implementation method provided in an embodiment of the present application, the filter structure 6 includes a filter and a support pad 62, and the filter 61 is attached to the circuit board 3 through the support pad 62, and the embodiment of the present application does not limit this.

[0056] In the embodiment of the present application, the function of the filtering structure 6 is to filter out infrared light in a specific band. Therefore, there are many possible types of filter 61. The filter 61 can be a notch filter or a cutoff filter, and the embodiment of the present application does not limit this.

[0057] In the embodiment of the present application, there are many possible relationships between the size of the lens assembly 2 and the size of the image sensor 4. For example, Fig.11, in the second direction and the third direction, the size of the lens assembly 2 is larger than the size of the image sensor 4; or, referring to Fig. 9 In the second direction, the size of the lens assembly 2 is larger than the size of the image sensor 4, and in the third direction, the size of the lens assembly 2 is smaller than the size of the image sensor 4; alternatively, in both the second direction and the third direction, the size of the lens assembly 2 is smaller than the size of the image sensor 4, and this embodiment of the present application is not limited to this.

[0058] Reference Fig. 9 In the embodiment of the present application, in the first direction, the projection of the lens assembly 2 all falls on the image sensor 4. The size of the image sensor 4 is related to the resolution of the camera module. When designing the camera module, it is necessary to first determine the resolution of the camera module according to the use requirements, then design the size of the image sensor 4 according to the determined resolution, and finally determine the size of the lens assembly 2. The projection of the lens assembly 2 in the first direction all falls on the image sensor 4. In this way, in the second direction and the third direction, the size of the second lens assembly 2 is not larger than the size of the image sensor 4, thereby reducing the occupied space of the lens assembly 2. In this way, the size of the lens barrel 11 can also be reduced accordingly, thereby further reducing the occupied space of the camera module.

[0059] Reference Figure 6 and Figure 7 In the embodiment of the present application, a through hole 111 is provided on the lens barrel 11. The through hole 111 has a first end 1111 and a second end 1112 that are arranged opposite to each other. The first end 1111 is arranged close to the image sensor 4. The lens 21 of the lens assembly 2 is installed in the through hole 111. In the second direction, the size at the first end 1111 and the size of the lens 21 at the first end 1111 are both the same as the size of the image sensor 4. The second direction is arranged perpendicular to the first direction. Generally, in the direction from the first end 1111 to the second end 1112, the size of the lens 21 in the lens assembly 2 gradually decreases. Therefore, the size of the lens 21 at the first end 1111 is equal to the maximum aperture diameter of the camera module. In the second direction, the size of the lens 21 at the first end 1111 is arranged the same as the size at the first end 1111, so that the light passing through the lens 21 at the first end 1111 can be projected onto the image sensor 4 through the first end 1111 of the light hole 111. In the second direction, the size of the lens 21 at the first end 1111 is set to be the same as the size of the image sensor 4, so that the size of the lens 21 at the first end 1111 can be maximized while reducing the space occupied by the lens assembly 2. In this way, when the focal length of the lens assembly 2 is constant, the optical effective diameter of the lens assembly 2 can be maximized, thereby improving the imaging quality of the camera module.

[0060] In the embodiment of the present application, the shape of the image sensor 4 may be various, for example, the image sensor 4 may be rectangular or circular, and the embodiment of the present application does not limit this. In addition, the shape of the lens 21 at the first end 1111 may be various, but when designing the shape of the lens 21 at the first end 1111, it is necessary to consider that the size of the lens 21 at the first end 1111 is set to be the same as the size of the image sensor 4 in the second direction. For example, when the shape of the image sensor 4 is rectangular, the side edge of the image sensor 4 in the second direction is a straight edge. At this time, the corresponding side of the lens 21 at the first end 1111 also needs to be designed as a straight edge. For example, the shape of the lens 21 at the first end 1111 may be rectangular or a special-shaped structure, and the embodiment of the present application does not limit this.

[0061] Reference Figure 8 and Fig. 9 In the embodiment of the present application, the image sensor 4 is rectangular, and the shape of the lens 21 at the first end 1111 is a special-shaped structure. During production, the lens 21 at the first end 1111 can be formed by cutting a circular lens 21, or can be formed in one piece, and the embodiment of the present application does not limit this. In addition, referring to Figure 7 A rounded structure 112 is also provided on the inner wall of the housing 1 to prevent the lens assembly 2 from interfering with the housing 1 during installation.

[0062] Reference Fig. 9 and Fig.10 In the embodiment of the present application, in the third direction, the size of the image sensor 4 is larger than the size of the lens assembly 2. In this way, when the light passes through the lens assembly 2 and is refracted in the third direction, the light can still be projected onto the image sensor 4, and the pixel image formed by the light can be used to compensate for the distortion and brightness uniformity of the edge field of view, thereby improving the imaging quality of the camera module.

[0063] In the embodiment of the present application, in the third direction, there are many possibilities for the relationship between the size of the lens 21 at the first end 1111 and the size of the first end 1111 of the light hole 111. For example, in the third direction, the size of the lens 21 at the first end 1111 may be larger than the size of the first end 1111 of the light hole 111, or may be smaller than the size of the first end 1111 of the light hole 111. The embodiment of the present application does not impose any restrictions on this.

[0064] Reference Figure 7In the third direction, support surfaces 113 are provided on both sides of the first end 1111 to support the lens 21 disposed at the first end 1111, and the first direction and the second direction are both disposed perpendicular to the third direction. Here, support surfaces 113 are provided on both sides of the first end 1111, and the lens 21 at the first end 1111 is supported and disposed at the first end 1111 by the support surfaces 113, so that installation is more convenient. Of course, when the size of the lens 21 at the first end 1111 is smaller than the size of the first end 1111 of the light hole 111, a slot can be provided on the inner wall of the light hole 111, and the corresponding side of the lens 21 at the first end 1111 extends into the slot to achieve fixation.

[0065] In the embodiment of the present application, the distance between the side of the lens assembly 2 facing away from the image sensor 4 and the image sensor 4 is related to the imaging quality of the camera module. Therefore, the distance between the side of the lens assembly 2 facing away from the image sensor 4 and the image sensor 4 can be designed according to usage requirements. For example, the distance between the side of the lens assembly 2 facing away from the image sensor 4 and the image sensor 4 can be 2.8 mm, 3 mm, or 5 mm, and the embodiment of the present application does not impose any limitation on this.

[0066] In the embodiment of the present application, the distance between the side of the lens assembly 2 facing away from the image sensor 4 and the image sensor 4 is in the range of 2.8 mm to 3 mm. In this way, while reducing the space occupied by the camera module in the first direction, it can also ensure that the imaging quality of the camera module meets the use requirements.

[0067] Reference Figure 1 In the embodiment of the present application, the camera module may further include a reinforcing plate 8, which is disposed on the side of the circuit board 3 facing away from the lens assembly 2. Here, the reinforcing plate 8 may improve the structural strength of the circuit board 3, thereby improving the reliability of the camera module.

[0068] In the embodiment of the present application, in the first direction, the size of the camera module can be designed according to the use requirements. For example, in the first direction, the size of the camera module can be 3mm, 4mm, or 5mm, and the embodiment of the present application does not limit this. Figure 1For the convenience of expression, the size of the camera module in the first direction is defined as a, the distance between the side of the lens assembly 2 facing away from the image sensor 4 and the image sensor 4 is b, the length of the large diameter section 322 of the step hole is c, and the thickness of the reinforcement plate 8 is d. In this case, a=b+c+d. When designing the size of the camera module in the first direction, the sizes of b, c, and d can be selected according to the use requirements. For example, in the first direction, the size of b can be 4mm, the size of c can be 0.5mm, and the size of d can be 0.1mm. In this case, the size of a is 4.6mm. In an implementable method provided in an embodiment of the present application, in the first direction, the size of b can be 3mm, the size of c can be 0.3mm, and the size of d can be 0.05mm. In this case, the size of a is 3.35mm.

[0069] Reference Figure 4 , Figure 5 , Fig.12 and Fig.13 In the embodiment of the present application, in order to reduce the space occupied by the lens barrel 11, the cross-sectional area of ​​the lens barrel 11 gradually decreases in the direction away from the image sensor 4. Generally, the size of the lens 21 in the lens assembly 2 gradually decreases in the direction away from the image sensor 4. Therefore, the cross-sectional area of ​​the lens barrel 11 can be gradually reduced in the direction away from the image sensor 4 to reduce the space occupied by the lens barrel 11.

[0070] On this basis, in the embodiment of the present application, the shape of the lens barrel 11 has many possibilities, for example, Figure 4 and Figure 5 , the shape of the lens barrel 11 can also be a prism structure; or, referring to Fig.12 and Fig.13 The shape of the lens barrel 11 can be a truncated cone structure, which is not limited in the embodiment of the present application.

[0071] In the embodiment of the present application, when the shape of the lens barrel 11 is a prism structure, the shape of the lens barrel 11 can be a quadrangular pyramid structure or a pentagonal pyramid structure, and the embodiment of the present application does not limit this. In a possible implementation of the present application, the shape of the lens barrel 11 is a quadrangular pyramid structure, and the cross section of the lens barrel 11 is a rectangle. Fig.14 When assembling the camera module, an assembly hole 9 is provided on the device body, and the lens barrel 11 needs to extend into the assembly hole 9. When the assembly hole 9 is a waist-shaped hole / rectangular hole, the cross section of the lens barrel 11 is rectangular, which can make it easier to align the lens barrel 11 with the assembly hole 9, thereby facilitating the assembly of the camera module. In addition, the cross section of the lens barrel 11 is rectangular, which can also improve the versatility of the lens barrel 11.

[0072] In the embodiment of the present application, when the lens barrel 11 extends into the assembly hole 9, the size of the corresponding end of the lens barrel 11 needs to be adapted to the size of the assembly hole 9. For example, in the second direction, when the size of the assembly hole 9 is 3.6 mm, the size of the corresponding end of the lens barrel 11 can be 3.15 mm or 3.2 mm; in the third direction, when the size of the assembly hole 9 is 4.6 mm, the size of the corresponding end of the lens barrel 11 can be 4.05 mm or 4.1 mm, and the embodiment of the present application does not limit this. In addition, in the third direction, in order to improve the utilization rate of the image sensor 4, in the third direction, the size of the corresponding end of the lens barrel 11 is set to be the same as the size of the image sensor 4.

[0073] In the embodiment of the present application, in order to further reduce the space occupied by the lens barrel 11, refer to Figure 4 , Figure 5 and Figure 6 In the second direction, a step surface is provided on the outer wall of the lens barrel 11. The location of the step surface needs to be designed according to the size of the lens 21 in the lens assembly 2. For example, the lens assembly 2 includes a first lens 21 and a second lens 21. The size of the first lens 21 is quite different from the size of the second lens 21. In this case, the step surface can be provided at a corresponding position between the first lens 21 and the second lens 21. The embodiment of the present application does not limit this. In addition, the provision of the step surface can also increase the aesthetics of the lens barrel 11.

[0074] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A camera module, characterized in that: include: The housing comprises a lens barrel, wherein the lens barrel is extended along a first direction; A lens assembly is disposed in the lens barrel; A circuit board is connected to the housing, and a mounting hole is provided on the circuit board. The extending direction of the mounting hole is parallel to the extending direction of the lens barrel, and the mounting hole is directly opposite to the lens assembly. The image sensor is arranged in the mounting hole and is electrically connected to the processor on the circuit board.

2. The camera module according to claim 1, characterized in that: The mounting hole is a stepped hole, and the image sensor is fixed on the stepped surface of the stepped hole.

3. The camera module according to claim 2, characterized in that: The step hole comprises a small diameter section and a large diameter section which are connected to each other, and the small diameter section is arranged close to the lens assembly, and the image sensor is fixed on the step surface between the small diameter section and the large diameter section.

4. The camera module according to claim 1, characterized in that: The camera module also includes a filtering structure, and the filtering structure is attached to a side of the circuit board facing the lens assembly.

5. The camera module according to any one of claims 1 to 4, characterized in that: In the first direction, the projection of the lens assembly entirely falls on the image sensor.

6. The camera module according to claim 5, characterized in that: The lens barrel is provided with a light-passing hole, which has a first end and a second end arranged opposite to each other, the first end is arranged close to the image sensor, and the lens of the lens assembly is installed in the light-passing hole. In the second direction, the size at the first end and the size of the lens at the first end are the same as the size of the image sensor, and the second direction is arranged perpendicular to the first direction.

7. The camera module according to claim 6, characterized in that: In the third direction, supporting surfaces are provided on both sides of the first end to support the lens arranged at the first end, and the first direction and the second direction are both arranged perpendicular to the third direction.

8. The camera module according to any one of claims 1 to 4, characterized in that: The cross-sectional area of ​​the lens barrel gradually decreases in a direction away from the image sensor.

9. The camera module according to any one of claims 1 to 4, characterized in that: The distance between the side of the lens assembly facing away from the image sensor and the image sensor is in the range of 2.8 mm to 3 mm.

10. An electronic device, characterized in that: include: Equipment body; The camera module according to any one of claims 1 to 9, wherein the camera module is arranged on the device body.

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