Camera module and electronic device

Abstract

The utility model discloses a camera module and electronic equipment, camera module includes: lens group, shell, including installation part, and installation part has opening, circuit board, installs in the inside of shell to be away from installation part, and circuit board is equipped with photosensitive chip, adapter, including the first part and second part of being connected, and the first part has first height in the extension direction of optical axis, wherein, lens group is connected with the first part of adapter, and the second part is worn in the opening and is connected with installation part, and along the extension direction of optical axis, lens group and photosensitive chip interval setting. The utility model effectively reduces design cost and production cost, has better flexibility.

Description

Technical Field

[0001] This utility model relates to the field of electronic product assembly technology, and in particular to a camera module and electronic device. Background Technology

[0002] During the assembly of the camera module, it is necessary to ensure that the imaging distance of the image sensor chip matches the optical back focal length (BFL) and flange focal length (FFL) of the lens so that the imaging surface of the lens can accurately fall on the photosensitive surface of the CMOS image sensor chip. Otherwise, it will lead to blurry images, image plane misalignment, and inability to focus.

[0003] Typically, a circuit board electrically connected to the image sensor is mounted inside a housing and fixed to the bottom of the housing. The physical distance between the surface of the image sensor and the imaging plane of the lens, along the optical axis, is called the image sensor's imaging distance. In other words, the image sensor's imaging distance depends on the mechanical height of the housing. Therefore, if the lens's optical back focal length is inconsistent with the housing's mechanical height, the light convergence point will deviate from the image sensor, resulting in focusing failure. For example, if the lens flange focal length is mismatched, the imaging plane will not accurately fall on the image sensor.

[0004] To ensure that the imaging distance of the image sensor, the optical back focal length of the lens, and the flange focal length are matched, current camera modules on the market usually adopt a traditional solution of using one lens with a housing of a fixed height. This undoubtedly results in higher design and production costs and less flexibility. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem of high design and production costs caused by the need for different lenses to be fitted with housings of different sizes in the existing camera module manufacturing process. This invention provides a camera module and electronic device that effectively reduces design and production costs and offers greater flexibility.

[0006] To address the aforementioned technical problems, this utility model discloses a camera module, comprising:

[0007] Lens assembly;

[0008] The housing includes a mounting portion having an opening;

[0009] A circuit board is installed inside the housing and away from the mounting portion; the circuit board is equipped with a photosensitive chip.

[0010] The adapter includes a first part and a second part connected to each other, the first part having a first height in the direction of extension of the optical axis; wherein,

[0011] The lens assembly is connected to the first part of the adapter, and the second part passes through the opening and is connected to the mounting part. Along the extension direction of the optical axis, the lens assembly and the photosensitive chip are spaced apart.

[0012] By employing the above technical solution, an adapter is added between the lens assembly and the housing. This allows for flexible adjustment of the physical distance between the photosensitive chip inside the housing and the lens assembly simply by changing the height of the adapter. Specifically, the adapter includes a first part and a second part. The second part passes through the opening in the housing mounting section and connects to the mounting section, while the first part connects to the lens assembly, thus achieving a fixed installation of the lens assembly and the housing.

[0013] At this point, the first height of the first part in the optical axis extension direction can adjust the overall height of the housing. For example, when the optical back focal length of the lens group is less than the physical distance from the image sensor inside the housing to the lens group, an adapter with a smaller first height can be selected. Conversely, when the optical back focal length of the lens group is greater than the physical distance from the image sensor to the lens group, an adapter with a larger first height can be selected.

[0014] In other words, by replacing adapters with different first heights, different lens groups can be adapted to the same housing, effectively reducing the design, manufacturing and assembly costs of the camera module and improving the platform utilization efficiency of the housing.

[0015] According to another specific embodiment of the present invention, the lens assembly includes: a lens and a base, the lens being fixed to the base, and the base being connected to the first part of the adapter.

[0016] According to another specific embodiment of the present invention, the base and the first part of the adapter are connected by an adhesive bonding process.

[0017] According to another specific embodiment of the present invention, the outer surface of the second part is threadedly connected to the inner wall of the mounting part.

[0018] According to another specific embodiment of the present invention, the outer surface of the second part is welded to the inner wall of the mounting part.

[0019] According to another specific embodiment of the present invention, the edge of the first part abuts against the edge of the mounting part and is connected by welding.

[0020] According to another specific embodiment of the present invention, the edge of the first part abuts against the edge of the mounting part and is connected by an adhesive process.

[0021] According to another specific embodiment of the present invention, it further includes: a main connector, which is connected to the housing and electrically connected to the circuit board.

[0022] The present invention also discloses an electronic device, including a camera module as described in any of the above embodiments. Attached Figure Description

[0023] Figure 1 A three-dimensional view of the camera module according to an embodiment of the present invention is shown. Figure 1 .

[0024] Figure 2 A three-dimensional view of the camera module according to an embodiment of the present invention is shown. Figure 2 .

[0025] Figure 3 A schematic diagram of the camera module according to an embodiment of the present invention is shown. Figure 1 .

[0026] Figure 4 An exploded view of the camera module according to an embodiment of the present invention is shown.

[0027] Figure 5 A schematic diagram of the camera module according to an embodiment of the present invention is shown. Figure 2 .

[0028] Figure 6 This is a perspective view of the adapter in the camera module of this utility model embodiment.

[0029] Figure 7 This diagram illustrates the adapter in the camera module of this utility model embodiment. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0031] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0033] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] refer to Figure 1 and Figure 2 This application provides a camera module 100 and an electronic device using the camera module 100.

[0037] refer to Figure 3 and Figure 4 The camera module 100 in this application embodiment includes: a lens group 110, a housing 120, a circuit board 130, and an adapter 140.

[0038] Specifically, the lens assembly 110 includes multiple lenses 111 and a base 112. Each lens 111 can be fixed to the base 112. This application embodiment does not impose specific restrictions on the installation method of the lens 111 and the base 112.

[0039] refer to Figure 4 and Figure 5 The outer casing 120 includes a first casing 121 and a second casing 122, as shown below. Figure 4As shown, the first housing 121 is the main part of the outer casing 120, which is used to house devices such as the circuit board 130. The first housing 121 has a mounting portion 1211, and the mounting portion 1211 has an opening 1212 (e.g., Figure 5 (As shown).

[0040] The second housing 122 is the bottom housing of the outer housing 120, which is used to support and fix the circuit board 130 so that the circuit board 130 is securely mounted inside the first housing 121. It can be seen that the circuit board 130 is fixed to the second housing 122 (exemplarily, the circuit board 130 can also be fixed to the first housing 121; this embodiment does not specifically limit this). Therefore, along the extending direction of the optical axis (e.g., Figure 4 (As shown in the Z direction), the circuit board 130 is located away from the mounting portion 1211 of the first housing 121. Meanwhile, it can be understood that a photosensitive chip 131 (e.g., ...) is electrically connected to the circuit board 130. Figure 3 As shown, light passes through the lens 111 of the lens group 110 and is projected onto the surface of the photosensitive chip 131 to form a clear image. Exemplarily, the circuit board 130 and the second housing 122 can be fixed by means of clips, positioning pins, etc. The embodiments of this application do not impose specific limitations on the fixing method of the circuit board 130 and the second housing 122.

[0041] refer to Figure 6 and Figure 7 And combined with 3 to Figure 5 The aforementioned adapter 140 includes a first part 141 and a second part 142 that are connected to each other, such as... Figure 7 As shown, the first part 141 extends along the optical axis (e.g.) Figure 4 It has a first height L1 in the Z direction (as shown in the figure).

[0042] In this embodiment, the base 112 of the lens assembly 110 is connected to the first part 141 of the adapter 140. On the other hand, the second part 142 passes through the opening 1212 and is connected to the mounting portion 1211. Furthermore, it can be seen that along the extension direction of the optical axis (e.g., Figure 3 (As shown in the Z direction), the lens assembly 110 and the photosensitive chip 131 are spaced apart. That is, the second part 142 of the adapter 140 passes through the opening 1212 of the mounting part 1211 and connects with the mounting part 1211, while the first part 141 of the adapter 140 connects with the base 112 of the lens assembly 110 to achieve fixed installation of the lens assembly 110 and the housing 120.

[0043] For example, such as Figure 4 As shown, the base 112 and the first part 141 are connected by an adhesive bonding process, as can be seen. Figure 4An exemplary illustration shows a first adhesive layer 161 between the base 112 and the first portion 141.

[0044] In the embodiments of this application, such as Figure 3 As shown, an adapter 140 is added between the lens group 110 and the housing 120, so that the physical distance L2 between the photosensitive chip 131 located inside the housing 120 and the lens group 110 can be flexibly adjusted by simply changing the height of the adapter 140 (e.g., the first height L1 of the first part 141).

[0045] This can be understood as the first height L1 of the first part 141 in the optical axis extension direction being able to adjust the overall height of the outer shell 120.

[0046] For example, when the optical back focal length of the lens group 110 is less than the physical distance L2 from the photosensitive chip 131 to the lens 111, the size of the adapter 140 can be adaptively reduced, that is, an adapter 140 with a smaller first height L1 is selected.

[0047] For example, when the optical back focal length of the lens group 110 is greater than the physical distance L2 from the image sensor 131 to the lens 111, the size of the adapter 140 can be adaptively increased, that is, an adapter 140 with a larger first height L1 is selected.

[0048] That is, the camera module 100 of this application embodiment can be adapted to the same housing 120 by replacing the adapter 140 with different first heights L1, thereby effectively reducing the design, manufacturing and assembly costs of the camera module 100 and improving the platform utilization efficiency of the housing 120.

[0049] refer to Figures 3 to 7 In some possible implementations, the adapter 140 of this application embodiment can be fixed to the housing 120 by means of a threaded connection. For example, the outer surface of the second part 142 is provided with an external thread, and the inner wall of the mounting part 1211 is provided with a corresponding internal thread, and the outer surface of the second part 142 is threadedly connected to the inner wall of the mounting part 1211.

[0050] In some possible implementations, the adapter 140 of this application embodiment can be fixed to the housing 120 by welding. For example, the outer surface of the second portion 142 is connected to the inner wall of the mounting portion 1211 by welding. For example, refer to... Figure 5 and combined Figure 4 Alternatively, the edge of the first part 141 can be joined to the edge of the mounting part 1211 using a welding process. This application does not limit the specific welding process used; for example, laser welding, ultrasonic welding, resistance welding, hot plate welding, friction welding, etc., can be used, and the appropriate process can be selected based on the actual application.

[0051] refer to Figures 3 to 7 In this embodiment of the application, the adapter 140 can be fixed to the housing 120 by adhesive bonding. For example, refer to... Figure 5 and combined Figure 4 The edge of the first part 141 can be abutted against the edge of the mounting part 1211 and connected by an adhesive process. This application embodiment does not impose specific limitations on the adhesive used; for example, any one or more types of adhesives such as epoxy resin adhesive, acrylic adhesive, polyurethane adhesive, UV-curable adhesive, and UV-curable optical adhesive can be used, and the appropriate type can be selected based on the actual application.

[0052] refer to Figure 3 and Figure 4 In some possible implementations, the camera module 100 of this application embodiment further includes: a main connector 150, which is electrically connected to the circuit board 130 and is used for transmitting signals and power. Simultaneously, a second housing 122 is connected to the first housing 121 and is bonded to the housing of the main connector 150 using an adhesive bonding process. It can be seen that... Figure 4 An example is shown of a second adhesive layer 162 between the housing of the main connector 150 and the second housing 122.

[0053] For example, the types of adhesives used between the second adhesive layer 162, the first adhesive layer 161, the outer surface of the second part 142 and the inner wall of the mounting part 1211, and the edge of the first part 141 and the edge of the mounting part 1211 can be the same or different. This application embodiment does not limit this. For example, any one or more types of adhesives such as epoxy resin adhesive, acrylic adhesive, polyurethane adhesive, UV-curable adhesive, and UV-curable optical adhesive can be used, and the selection can be made according to the actual application.

[0054] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A camera module, comprising: include: Lens assembly; The housing includes a mounting portion having an opening; A circuit board is installed inside the housing and away from the mounting portion; the circuit board is equipped with a photosensitive chip. The adapter includes a first part and a second part connected to each other, the first part having a first height in the direction of extension of the optical axis; wherein, The lens assembly is connected to the first part of the adapter, and the second part passes through the opening and is connected to the mounting part. Along the extension direction of the optical axis, the lens assembly and the photosensitive chip are spaced apart.

2. The camera module of claim 1, wherein, The lens assembly includes a lens and a base, the lens being fixed to the base, and the base being connected to the first part of the adapter.

3. The camera module of claim 2, wherein, The base and the first part of the adapter are connected by an adhesive process.

4. The camera module according to any one of claims 1 to 3, wherein, The outer surface of the second part is threadedly connected to the inner wall of the mounting part.

5. The camera module according to any one of claims 1 to 3, wherein, The outer surface of the second part is welded to the inner wall of the mounting part.

6. The camera module of any one of claims 1-3, wherein, The edge of the first part abuts against the edge of the mounting part and is connected by welding.

7. The camera module of any one of claims 1-3, wherein, The edge of the first part abuts against the edge of the mounting part and is connected by an adhesive process. 8.The camera module according to any one of claims 1 to 3, wherein, Also includes: The main connector is connected to the housing and electrically connected to the circuit board.

9. An electronic device, comprising: Includes the camera module as described in any one of claims 1 to 8.

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