Camera modules and electronic equipment

Abstract

The present application relates to a camera module and an electronic device. The camera module comprises: a module body, including an optical lens, a lens holder and a photosensitive component, the optical lens is arranged on the lens holder, the photosensitive component comprises a photosensitive chip and a circuit board, the photosensitive chip is arranged on the circuit board, and the lens holder is arranged above the circuit board; a transmission part, connected to the module body; a driving part, driving the transmission part to move, so as to drive the module body to move along the optical axis direction of the optical lens. The camera module of the present application drives the module body to move along the optical axis of the lens through the driving structure, which facilitates finding the clear point of the image and improves the imaging quality of the camera module.

Description

Technical Field

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

[0002] The camera module is one of the important components of intelligent equipment, and its application scope and volume in the market are constantly growing. With the advancement of technology, both work and life are promoting intelligence, and one of the important prerequisites for achieving intelligence is to be able to achieve good interaction with the external environment. One of the important ways to achieve good interaction is visual perception, which mainly relies on the camera module. It can be said that the camera module has transformed from an obscure smart equipment accessory to one of the key components of smart equipment.

[0003] For macro imaging camera modules, in order to obtain a clearer image during the macro imaging process, the object distance is usually set, that is, the distance between the lens end face and the object to be photographed must be a specific distance. However, in the actual shooting process, it is difficult for the photographer to find the specific distance between the lens end face and the object to be photographed, so the captured image is not clear, that is, there is a problem that the user cannot find the clear imaging point under a shallow depth of field. Summary of the invention

[0004] Based on the above problems, the present application provides a camera module and an electronic device, in which a driving part drives a transmission part to move, and the transmission part drives the module body to move as a whole, thereby ensuring the clarity of the captured image and improving the imaging quality of the camera module.

[0005] An embodiment of the present application provides a camera module, comprising: a module body, including an optical lens, a lens holder and a photosensitive component, the optical lens is arranged on the lens holder, the photosensitive component includes a photosensitive chip and a circuit board, the photosensitive chip is arranged on the circuit board, and the lens holder is arranged above the circuit board; a transmission part, connected to the module body; a driving part, driving the transmission part to move, so as to drive the module body to move along the optical axis direction of the optical lens.

[0006] According to some embodiments of the present application, the transmission part includes: a base; a limit frame, which is slidably arranged on the base, and a first slide groove and a second slide groove are provided on the side wall of the limit frame, wherein the first slide groove is perpendicular to the optical axis of the optical lens, and the second slide groove is inclined relative to the optical axis of the optical lens, and the module body is connected to the second slide groove; a positioning bearing, including a base and a limit shaft arranged on the side wall of the base, the base is arranged on the base, and the limit shaft is slidably arranged in the first slide groove; a limit rod, the limit rod is connected to the positioning bearing, the axis of the limit rod is parallel to the optical axis of the optical lens, and the module body is slidably connected to the limit rod; the driving part drives the limit frame to slide along the first slide groove, and the limit frame drives the module body to move along the optical axis direction of the optical lens.

[0007] According to some embodiments of the present application, a guide column and a limit block are provided on the side wall of the mirror base, and the guide column and the limit block are respectively located on the side walls of the mirror base that are perpendicular to each other, and a through hole is provided on the limit block; the guide column is slidably arranged in the second sliding groove, and the limit rod passes through the through hole of the limit block.

[0008] According to some embodiments of the present application, the guide column and the limit block are integrally formed with the mirror base.

[0009] According to some embodiments of the present application, a protrusion is provided on the upper surface of the base, and a sliding plate is provided on the lower surface of the limiting frame. The protrusion is located below the sliding plate, and the sliding plate can slide on the protrusion.

[0010] According to some embodiments of the present application, an opening extending upward is provided on the lower surface of the limiting frame, the opening is communicated with the first sliding groove and the second sliding groove respectively, and the sliding sheet closes the opening.

[0011] According to some embodiments of the present application, the protrusion on the base is semicircular.

[0012] According to some embodiments of the present application, the module body is located in the internal space of the limiting frame.

[0013] According to some embodiments of the present application, the driving unit includes: a permanent magnet, which is arranged on the limiting frame; and an electromagnet, which is arranged on the base, and drives the permanent magnet to move when the electromagnet is energized.

[0014] According to some embodiments of the present application, the electromagnet is electrically connected to the base.

[0015] According to some embodiments of the present application, the camera module also includes a cover, which is connected to the driving structure, and the cover and the driving structure form a closed space. A light hole is provided at the top of the cover, the module body is located in the closed space, and the optical lens is located in the light hole.

[0016] According to some embodiments of the present application, the cover is made of a light-guiding material.

[0017] According to some embodiments of the present application, the photosensitive component also includes: a bracket, which is arranged on the circuit board, and the lens seat is arranged on the bracket; a color filter, which is arranged on the bracket, and the color filter is located above the photosensitive chip.

[0018] According to some embodiments of the present application, the bracket may be molded on the circuit board.

[0019] According to some embodiments of the present application, the camera module also includes a soft board and a connector, one end of the soft board is connected to the circuit board, and the other end of the soft board is connected to the connector.

[0020] According to some embodiments of the present application, the soft board is bent.

[0021] An embodiment of the present application provides an electronic device, comprising: the camera module as described above; and an electronic device body, wherein the camera module is assembled to the electronic device body.

[0022] The camera module of the present application drives the transmission part through the driving part to drive the module body to move along the optical axis direction of the lens, so as to facilitate finding the clear point of the image and improve the imaging quality of the camera module. The driving part can provide driving force through the cooperation of electromagnets and permanent magnets, with a simple structure and sufficient power. The cover is made of light-guiding material, which is used to supplement the light required for the camera module to shoot. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without exceeding the scope of protection required by the present application.

[0024] Figure 1 is a schematic diagram of a camera module according to an embodiment of the present application;

[0025] Figure 2 is a cross-sectional view of a camera module according to an embodiment of the present application;

[0026] Figure 3 is a schematic diagram of a module body of an embodiment of the present application;

[0027] Figure 4 is a schematic diagram of a photosensitive component according to an embodiment of the present application;

[0028] Figure 5 is a schematic diagram of the driving structure of an embodiment of the present application;

[0029] Figure 6 is a schematic diagram of a driving part and a transmission part of an embodiment of the present application;

[0030] Figure 7 is an exploded view of a driving part and a transmission part of an embodiment of the present application;

[0031] Figure 8 is a schematic diagram of a base according to an embodiment of the present application;

[0032] Fig. 9 This is a schematic diagram of the limiting frame of the embodiment of the present application. Figure 1 ;

[0033] Fig.10 This is a schematic diagram of the limiting frame of the embodiment of the present application. Figure 2 ;

[0034] Fig.11 is a schematic diagram of a positioning bearing and a limiting rod according to an embodiment of the present application;

[0035] Fig.12 is a schematic diagram of a mirror holder according to an embodiment of the present application;

[0036] Fig.13 is a schematic diagram of a cover according to an embodiment of the present application;

[0037] Fig.14 It is a schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and examples of materials provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0043] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0044] When the camera module is installed in an electronic device to obtain an image, according to the imaging principle of the lens: 1 / F=1 / U+1 / V, where F is the focal length, U is the object distance, and V is the phase distance, in order to obtain a clear image, when the image distance and focal length of the lens do not change, it is necessary to find the preset object distance to obtain a clear image. For example, when the photographer is performing a corresponding shooting activity in a macro camera module used for microscopic imaging, it is difficult to find the accurate object distance in a short time, and it takes many attempts to find a clear imaging point, which seriously affects the imaging efficiency of the camera module.

[0045] The camera module of the present application drives the module body to move as a whole along the optical axis of the lens through a driving structure to adjust the object distance of the camera module, and judges the imaging clarity of the camera module through the relevant program of the electronic device. When the clarity of the captured image reaches a preset standard, the driving structure drives the module body to move along the optical axis, and the camera module can find a clear imaging point in a short time, thereby improving the working efficiency of the camera module.

[0046] Example 1

[0047] like Figure 1 and Figure 2 As shown, this embodiment provides a camera module 100, which includes a module body 1 and a driving structure, wherein the driving structure includes a transmission part 2 and a driving part 3. The module body 1 is used to capture an image of an object, and the driving part 3 drives the transmission part 2 to move, and the transmission part 2 can drive the module body 1 to move to adjust the distance between the lens end of the module body 1 and the captured object, so as to quickly find a clear imaging point of the camera module 100. The camera module 100 can be used in various electronic devices, such as smart phones, tablet computers, wearable devices, etc.

[0048] like Figure 3As shown, the module body 1 includes an optical lens 11, a lens holder 12 and a photosensitive component 13. The optical lens 11 is arranged on the lens holder 12, and the lens holder 12 is arranged on the photosensitive component 13.

[0049] like Figure 4 As shown, the photosensitive component 13 includes a photosensitive chip 131 and a circuit board 132. The circuit board 132 is provided with a chip area and a non-chip area, the photosensitive chip 131 is arranged in the chip area of ​​the circuit board 132, and the non-chip area is provided with other electronic components to be installed on the circuit board 132. Optionally, the photosensitive chip 131 is bonded to the upper surface of the circuit board 132 by glue, and the photosensitive chip 131 is electrically connected to the circuit board 132 by gold wire. The lens holder 12 is arranged above the circuit board 132, and the central axis of the photosensitive chip 131 is located on the optical axis of the optical lens 11.

[0050] The light of the object enters the interior of the camera module 100 through the optical lens 11 , and is received by the photosensitive chip 131 and photoelectrically converted. The electrical signal related to the image of the object obtained by the photosensitive chip 131 through photoelectric conversion can be transmitted by the circuit board 132 .

[0051] The transmission part 2 is connected to the module body 1, and the driving part 3 drives the transmission part 2 to move, and the transmission part 2 drives the module body 1 to move along the optical axis direction of the optical lens. The module body 1 moves as a whole along the optical axis direction of the optical lens 11, which will change the distance between the lens end of the module body 1 and the photographed object, that is, the object distance of the camera module 100 is adjusted. After the electronic device receives the image signal of the camera module 100, the relevant program determines the imaging clarity of the camera module 100. When the clarity of the captured image reaches the preset standard, the module body 1 finds a suitable position, and the driving structure is still in working state. At this time, the current passed in makes the driving structure drive the module body 1 to remain in a suitable position, so that the camera module 100 can automatically find a clear imaging point, improve the imaging quality of the camera module 100, and improve the working efficiency of the camera module 100.

[0052] Optionally, the driving unit 3 drives the transmission unit 2 to move in a direction perpendicular to the optical axis of the optical lens 11, and the connection structure between the transmission unit 2 and the module body 1 converts the movement of the transmission unit 2 in a direction perpendicular to the optical axis of the optical lens 11 into an overall movement of the module body 1 in the direction of the optical axis of the optical lens 11, thereby adjusting the object distance of the camera module 100.

[0053] like Figure 5 , Figure 6 and Figure 7 As shown, the transmission part 2 includes: a base 21, a limiting frame 22, a positioning bearing 23, and a limiting rod 24. The limiting frame 22 is slidably arranged on the base 21, the positioning bearing 23 is slidably connected to the limiting frame 22, and the limiting rod 24 is fixedly connected to the positioning bearing 23.

[0054] like Figure 8 As shown, the base 21 is a rectangular thin plate, which supports the various components of the camera module 100.

[0055] like Fig. 9 and Fig.10 As shown, the limit frame 22 of this embodiment is U-shaped, including a first side wall 22a, a second side wall 22b and a third side wall 22c. Among them, the first side wall 22a and the second side wall 22b are parallel to each other, the third side wall 22c connects the first side wall 22a and the second side wall 22b, and the third side wall 22c is perpendicular to the first side wall 22a and the second side wall 22b. In this embodiment, the first side wall 22a and the second side wall 22b extend along the X direction, and the third side wall 22c extends along the Y direction. The height of the limit frame 22 in the Z direction needs to meet the travel requirements of the module body 1.

[0056] A first slide groove 221 and a second slide groove 222 are provided on the first side wall 22a and the second side wall 22b of the limit frame 22. Among them, the first slide groove 221 is close to the third side wall 22c relative to the second slide groove 222. The optical axis of the optical lens 11 is located in the Z direction, and the first slide groove 221 is arranged perpendicular to the optical axis of the optical lens 11. In this embodiment, the first slide groove 221 extends along the X direction. The second slide groove 222 is arranged obliquely relative to the optical axis of the optical lens 11. In this embodiment, the second slide groove 222 extends upwardly from its bottom end in a direction away from the third side wall 22c. The lengths of the first slide groove 221 and the second slide groove 222 are set according to requirements. The length of the first slide groove 221 needs to meet the travel requirements of the limit frame 22, and the length of the second slide groove 222 needs to meet the travel requirements of the module body 1. Optionally, the first slide groove 221 and the second slide groove 222 can be connected as needed to reduce the weight of the limit frame 22.

[0057] like Fig.11As shown, the positioning bearing 23 includes a base 231 and a limiting shaft 232 arranged on the side wall of the base. In this embodiment, the base 231 is approximately a U-shaped structure, and the base 231 includes two vertical parts and a horizontal part parallel to each other, and the two ends of the horizontal part are respectively connected to the two vertical parts. Optionally, a connecting rod 233 is arranged between the inner walls of the two vertical parts of the base 231 to improve the overall bearing capacity of the positioning bearing 23. The positioning bearing 22 is located between the first side wall 22a and the second side wall 22b of the limiting frame 22, the horizontal part of the base 231 is fixedly connected to the base 21, and the side walls of the two vertical parts of the base 231 are respectively provided with limiting shafts 232. The axis of the connecting rod 233 is colinear with the axis of the limiting shaft 232. The limiting shaft 232 is slidably arranged in the first slide groove 221, and the axis of the limiting shaft 232 is parallel to the Y direction. Since the positioning bearing 23 is fixed relative to the base 21, the two vertical parts of the base 231 block the limiting frame 22 from moving along the Y direction. Due to the restriction of the positioning bearing 23, the limiting frame 22 can only move along the X direction in the horizontal direction.

[0058] The limiting rod 24 is connected to the positioning bearing 23, and the axis of the limiting rod 24 is parallel to the optical axis of the optical lens 11. In this embodiment, the limiting rod 24 is cylindrical.

[0059] Optionally, the module body 1 is located in the inner space of the limiting frame 22, that is, the module body 1 is located between the first side wall 22a and the second side wall 22b of the limiting frame 22. The module body 1 is slidably connected to the second slide groove 222, and the module body 1 is slidably connected to the limiting rod 24.

[0060] The driving unit 3 drives the limit frame 22 to slide. Due to the limitation of the positioning bearing 23, the limit frame 22 can only slide along the X direction. Through the action of the second slide groove 222, the sliding of the limit frame 22 applies an oblique upward or oblique downward force to the module body 1. Due to the limitation of the limit rod 24, the module body 1 can only move along the optical axis of the optical lens 11. The overall movement of the module body 1 along the optical axis of the optical lens 11 can adjust the object distance of the camera module 100, so that the camera module 100 can find a clear imaging point in a short time, improve the imaging quality of the camera module 100, and improve the working efficiency of the camera module 100.

[0061] like Fig.12As shown, according to an optional technical solution of the present application, the mirror base 12 is a ring-shaped structure, and light can pass through the center of the mirror base 12. A guide column 14 and a limit block 15 are provided on the side wall of the mirror base 12. The guide column 14 and the limit block 15 are used as module connectors for connecting the drive structure 2. Among them, the guide column 14 is cylindrical. In this embodiment, guide columns 14 are provided on two opposite side walls of the mirror base 12. The axis of the guide column 14 is perpendicular to the side wall of the mirror base where the guide column 14 is located. The side wall of the mirror base where the limit block 15 is located is perpendicular to the side wall of the mirror base where the guide column 14 is located. A through hole 151 is provided on the limit block 15, and the axis of the through hole 151 is parallel to the optical axis of the optical lens 11.

[0062] In an optional solution, the guide post 14 and the stopper 15 are integrally formed with the lens holder 12 by an injection molding process to simplify the manufacturing and assembly process of the camera module 100. In another optional solution, the guide post 14 and the stopper 15 are separately injection molded with the lens holder 12. During assembly, the guide post 14 and the stopper 15 are respectively fixedly connected to the lens holder 12, for example, by gluing the guide post 14 and the stopper 15 to the lens holder 12. The connection between the guide post 14 and the stopper 15 and the lens holder 12 can also be achieved by other processes, which is not limited in this application.

[0063] The guide post 14 of the module body 1 is slidably disposed in the second slide groove 222. In this embodiment, the two guide posts 14 are respectively located in the second slide groove 222 on the first side wall 22a and the second side wall 22b. The limit rod 24 passes through the through hole 151 of the limit block 15, and the limit rod 24 limits the module body 1 to move only along the optical axis of the optical lens 11.

[0064] The driving unit 3 drives the limit frame 22 to slide. Due to the limitation of the positioning bearing 23, the limit frame 22 can only slide along the X direction. The sliding of the limit frame 22 causes the second slide groove 222 to apply an upward or downward force to the guide column 14. Since the limit rod 24 limits the module body 1 to move only along the optical axis of the optical lens 11, the limit frame 22 drives the module body 1 to move as a whole along the optical axis of the optical lens 11.

[0065] According to an optional technical solution of the present application, a slide 25 is provided on the lower surface of the limit frame 22. In this embodiment, a groove is provided on the lower surface of the first side wall 22a and the second side wall 221, and the slide 25 is arranged in the groove, and the thickness of the slide 25 is greater than the depth of the groove, so that the lower surface of the slide 25 is located below the lower surface of the limit frame 22. A protrusion 211 is provided on the upper surface of the base 21 at a position corresponding to the slide 25. Optionally, the number of protrusions 211 is multiple, and in this embodiment, two protrusions 211 are provided below each slide 224. The slide 25 can be optionally an iron sheet, and the slide 25 can slide on the protrusion 211. Through the cooperation of the slide 25 and the protrusion 211, the friction resistance of the limit frame 22 when sliding can be reduced, thereby providing the power required for the camera module 100 to work.

[0066] Optionally, in this embodiment, the first slide groove 221 and the second slide groove 222 of the limiting frame 22 are connected, and an opening 225 extending upward is provided on the lower surface of the limiting frame 22, and the opening 225 is connected with the first slide groove 221 and the second slide groove 222, so as to facilitate the assembly of the positioning bearing 23, the guide column 14 and the limiting frame 22. The slide 25 closes the opening 225, and the slide 25 and the limiting frame 22 can be bonded by a thermosetting adhesive, and the present application does not limit the fixing method of the slide 25 and the limiting frame 22.

[0067] According to an optional technical solution of the present application, the protrusion 211 is semicircular. The slide 25 contacts the vertex of the protrusion 211, which satisfies the support of the base 21 on the limit frame 22 while minimizing the friction resistance of the limit frame 22 when sliding. The protrusion 211 can also be set to other shapes as needed, and the present application does not make specific restrictions here.

[0068] According to an optional technical solution of the present application, the limiting rod 24 is integrally formed with the positioning bearing 23. In this embodiment, the limiting rod 24 and the positioning bearing 23 can be integrally formed by injection molding, which simplifies the preparation and assembly process of the camera module and improves production efficiency.

[0069] According to an optional technical solution of the present application, the driving part 3 includes: a permanent magnet 31 and an electromagnet 32. A magnet mounting hole 223 is provided on the end face of the limit frame 22 opposite to the third side wall 22c, and the permanent magnet is arranged in the magnet mounting hole 223 on the end face of the limit frame 22. The electromagnet 32 ​​is fixedly arranged on the base 21, and a circuit structure is arranged on the base 21. The electromagnet 32 ​​is electrically connected to the circuit structure on the base 21. A component that is connected to an external power supply device can be arranged on the base 21. By connecting the base 21 and the external power supply device, the current conducted on the base can be provided to the electromagnet 32 ​​to ensure the normal operation of the electromagnet 32.

[0070] When the electromagnet 32 ​​is energized, a magnetic field is generated. The magnetic field of the electromagnet 32 ​​generates a force on the permanent magnet 31. The permanent magnet 31 moves relative to the electromagnet 32. The permanent magnet 31 transmits the force to the limit frame 22, driving the limit frame 22 to move along the X direction. Controlling the current direction of the electromagnet 32 ​​can control the limit frame 22 to slide in the positive or reverse direction of X. The sliding of the limit frame 22 drives the module body 1 to move as a whole along the optical axis direction of the optical lens 11, thereby adjusting the object distance of the camera module 100.

[0071] The electromagnet 32 ​​drives the permanent magnet 31 to provide power to the transmission part 2, which facilitates the miniaturization of the overall structure of the camera module. The electromagnet 32 ​​can provide greater power for the movement of the module body 1, so that the module body 1 can quickly move to a clear imaging point to improve the imaging efficiency of the camera module.

[0072] like Figure 1 and Fig.13 As shown, according to an optional technical solution of the present application, the camera module 100 further includes a cover 6. The cover 6 is a shell structure, the bottom end of the cover 6 is open, and the length and width of the cover 6 are substantially the same as the base 21. The cover 6 is disposed on the base 21, and optionally, the cover 6 is bonded to the base 21 by glue. The cover 6 and the base 21 form a closed space for accommodating other components of the camera module 100. A light hole 61 is provided at the top end of the cover 6, and the position of the light hole 61 is determined according to the position of the module body 1.

[0073] The module body 1 is located in a closed space formed by the cover 6 and the base 21, and the optical lens 11 is located in the light hole 61. Optionally, the top of the optical lens 11 can extend to the outside of the light hole 61, which makes it easier for the optical lens 11 to obtain light from the object.

[0074] Usually in the macro imaging process, the distance between the lens of the camera module 100 and the photographed object is relatively close. For example, in a specific camera module structure, the distance between the macro lens and the photographed object is about 3 mm. The camera module 100 may block part of the external light and reduce the brightness of the photographed object. When the optical lens receives insufficient light, the quality of the captured image will also be reduced accordingly. According to an optional technical solution of the present application, the cover 6 is made of a light-guiding material, and the cover 6 acts as a light guide plate. A light source, such as an LED lamp, is arranged around the camera module. The cover 6 transmits the light of the light source to increase the brightness around the photographed object, so that the camera module 100 receives more light signals and can capture more details about the photographed object, thereby effectively improving the imaging quality of the camera module.

[0075] According to an optional technical solution of the present application, the photosensitive component also includes: a bracket and a color filter. The bracket can be a U-shaped structure, the bracket is arranged on the circuit board 132, and the lens holder 12 is arranged on the bracket. The color filter is mounted on the bracket, and the color filter is located above the photosensitive chip 131. The color filter can filter the light passing through the optical lens 11. Specifically, the color filter is arranged in the middle of the propagation path of the optical lens 11 and the photosensitive chip 131, and the color filter can filter the fluctuating light in the light that affects the imaging quality, for example, the light in the infrared band. The filter can be an infrared filter, a blue glass filter, a wafer-level infrared cutoff filter, a fully transparent filter, a visible light filter, etc.

[0076] In an optional solution, the bracket is integrally formed with the circuit board 132 through a molding process. The wires and other electronic components on the circuit board 132 are molded inside the molding seat by the molding process. The shape of the molding seat is set to be a bracket for installing the color filter. The color filter is set on the molding seat, which can effectively reduce the height of the camera module.

[0077] According to an optional technical solution of the present application, the camera module 100 also includes a soft board 4 and a connector 5. One end of the soft board 4 is connected to the circuit board 132, and the other end of the soft board 4 is connected to the connector 5. In this embodiment, the soft board 4 is located on the side opposite to the limit block 15 to avoid interference between the soft board 4 and the driving mechanism. An opening 62 is provided on the side wall of the cover 6 corresponding to the soft board 4. During assembly, the soft board 4 extends out of the closed space formed by the base 21 and the cover 6 through the opening 62. The circuit board 132 is connected to the electronic device through the connector 5, and the connector 5 supplies power to the circuit board 132. The provision of the soft board 4 facilitates the overall movement of the module body 1 along the optical axis direction of the optical lens 11.

[0078] In one embodiment, the connector 5 is mainly used to provide working current to the camera module 100. The connector can be fixed to the base or to the power supply device in the electronic device. When the module body 1 moves under the action of the driving unit 3, the part where the connector 5 is fixed may produce a certain resistance to the movement of the module body 1. According to an optional technical solution of the present application, the soft board 4 is appropriately bent. In a specific embodiment, the soft board 4 is made wavy to reserve space for the movement of the module body 1, which can effectively solve the resistance to the movement of the module body 1 caused by the fixing of the connector 5.

[0079] According to an optional technical solution of the present application, when the driving part 3 includes an electromagnet 32, the electromagnet 32 ​​is located below the soft board 4. By arranging the electromagnet 32 ​​below the soft board 4, the internal space of the camera module 100 can be fully utilized to achieve the miniaturization of the camera module 100 structure.

[0080] This embodiment provides a macro camera module that can quickly find a clear imaging point. The module body is driven by an externally arranged driving structure to move, thereby improving the imaging quality of the camera module. The driving structure can be driven accordingly by an electromagnet, and the design structure is simple and can provide a large driving force. The cover serves as the outer shell of the camera module to protect the internal components. At the same time, the cover is used as a light guide plate to supplement the light required for the camera module to shoot using the light source on the electronic device. One end of the soft board is connected to the circuit board, and the other end is connected to the connector, which reduces the resistance of the soft board to the movement of the module body while ensuring the current provided for the camera module to work. The limit frame is slidably arranged on the base through a slide, reducing the resistance required to drive the limit frame, thereby reducing the requirement for the driving force. The electromagnet of the driving step is arranged below the soft board, making full use of the internal space of the camera module to achieve the miniaturization of the camera module structure. The overall structure of the camera module is simple, which is conducive to mass production.

[0081] Example 2

[0082] like Fig.14 As shown, this embodiment provides an electronic device, the electronic device includes the camera module 100 and the electronic device body 200 as described above, and the camera module 100 is assembled in the electronic device body 200. Optionally, the electronic device of this embodiment can be a mobile phone, a tablet computer, a wearable device, a television, a vehicle, a monitoring device, etc., and this application is not limited to this. The camera module 100 cooperates with the electronic device to realize the image acquisition and reproduction function of the target object.

[0083] The driving part 3 of the camera module 100 can drive the module body 1 to move along the optical axis direction of the optical lens 11 through the transmission part 2. The overall movement of the module body 1 along the optical axis direction of the optical lens 11 will change the distance between the lens end of the module body 1 and the photographed object, that is, the object distance of the camera module 100 is adjusted. After the electronic device receives the image signal of the camera module 100, the relevant program determines the imaging clarity of the camera module 100. When the clarity of the captured image reaches the preset standard, the module body 1 is controlled to remain in a suitable position, so that the camera module 100 can automatically find a clear imaging point, improve the imaging quality of the camera module 100, and improve the working efficiency of the camera module 100.

[0084] The embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core ideas of the present application. Therefore, changes or deformations made by those skilled in the art based on the ideas of the present application, the specific implementation methods and the scope of application of the present application, all belong to the scope of protection of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A camera module, characterized in that: include: The module body comprises an optical lens, a lens seat and a photosensitive component, wherein the optical lens is arranged on the lens seat, the photosensitive component comprises a photosensitive chip and a circuit board, the photosensitive chip is arranged on the circuit board, the lens seat is arranged above the circuit board, and a guide column is arranged on the side wall of the lens seat; A transmission part connected to the module body; A driving unit, driving the transmission unit to move, wherein the transmission unit drives the module body to move along the optical axis direction of the optical lens; Wherein, the transmission part comprises: Pedestal; A limit frame is slidably arranged on the base, and a first slide groove and a second slide groove are arranged on the side wall of the limit frame, wherein the first slide groove is perpendicular to the optical axis of the optical lens, and the second slide groove is inclined relative to the optical axis of the optical lens, and the guide column of the module body is slidably connected to the second slide groove; A positioning bearing, comprising a base and a limiting shaft arranged on a side wall of the base, wherein the base is arranged on the pedestal, and the limiting shaft is slidably arranged in the first sliding groove; A limiting rod, wherein the limiting rod is connected to the positioning bearing, the axis of the limiting rod is parallel to the optical axis of the optical lens, and the module body is slidably connected to the limiting rod; The driving unit drives the limit frame to slide along the first slide groove, and the sliding of the limit frame causes the second slide groove to apply an upward or downward force to the guide column, so that the module body moves along the optical axis direction of the optical lens.

2. The camera module according to claim 1, characterized in that: A limit block is also provided on the side wall of the mirror base, the guide column and the limit block are respectively located on the side walls of the mirror base which are perpendicular to each other, and a through hole is provided on the limit block; The limiting rod passes through the through hole of the limiting block.

3. The camera module according to claim 2, characterized in that: The guide column and the limit block are integrally formed with the lens holder of the camera module.

4. The camera module according to claim 1, characterized in that: The upper surface of the base is provided with a protrusion, the lower surface of the limiting frame is provided with a sliding plate, the protrusion is located below the sliding plate, and the sliding plate can slide on the protrusion.

5. The camera module according to claim 4, characterized in that: An opening extending upward is provided on the lower surface of the limiting frame, the opening is communicated with the first sliding groove and the second sliding groove respectively, and the sliding sheet closes the opening.

6. The camera module according to claim 4, characterized in that: The protrusion on the base is semicircular.

7. The camera module according to claim 1, characterized in that: The module body is located in the inner space of the limiting frame.

8. The camera module according to claim 1, characterized in that: The driving unit comprises: A permanent magnet is arranged on the limiting frame; The electromagnet is arranged on the base, and drives the permanent magnet to move when the electromagnet is energized.

9. The camera module according to claim 8, characterized in that: The electromagnet is electrically connected to the base.

10. The camera module according to claim 1, characterized in that: The camera module also includes a cover, which is connected to the base of the transmission part. The cover and the base form a closed space. A light hole is provided at the top of the cover. The module body is located in the closed space, and the optical lens is located in the light hole.

11. The camera module according to claim 10, characterized in that: The sealing cover is made of light-guiding material.

12. The camera module according to claim 1, characterized in that: The photosensitive component also includes: A bracket, arranged on the circuit board, and the mirror seat is arranged on the bracket; A color filter is arranged on the bracket, and the color filter is located above the photosensitive chip.

13. The camera module according to claim 12, characterized in that: The bracket can be molded on the circuit board.

14. The camera module according to any one of claims 1 to 13, characterized in that: The camera module also includes a soft board and a connector, one end of the soft board is connected to the circuit board, and the other end of the soft board is connected to the connector.

15. The camera module according to claim 14, characterized in that: The soft board is in a bent shape.

16. An electronic device, characterized in that: include: The camera module according to any one of claims 1 to 15; The electronic device body is assembled on the camera module.

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