Camera module, camera module installation method and terminal device

Abstract

The present invention relates to the field of terminal device technology, and in particular to a camera module, a camera module installation method, and a terminal device. The camera module includes a housing with a lens mounted thereon, a circuit board assembly, and electronic components. The housing includes a receiving groove; the circuit board assembly is accommodated in the receiving groove, and the circuit board assembly includes at least a first printed circuit board, a second printed circuit board, and a flexible printed circuit board. One end of the first printed circuit board is connected to one end of the second printed circuit board via a flexible printed circuit board, and the first printed circuit board and the second printed circuit board are connected by bending the flexible circuit board so that the first printed circuit board and the second printed circuit board are perpendicular or inclined to each other. The electronic components include at least a first electronic component and a second electronic component, the first electronic component being disposed on the first printed circuit board and the second electronic component being disposed on the second printed circuit board. The electronic components in this camera module have good heat dissipation properties.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal equipment, and in particular to a camera module, a method for installing a camera module, and a terminal equipment. Background Art

[0002] Currently, camera modules are widely used in various terminal devices, such as in-vehicle cameras, mobile terminals, and surveillance equipment. For example, in-vehicle cameras can capture and identify the external environment through the camera module, providing convenience for users. However, in related technologies, the placement of electronic components and printed circuit boards in camera modules is inadequate, resulting in insufficient heat dissipation, which can easily cause electronic components to stop working. Furthermore, the area available for mounting electronic components on the printed circuit board is relatively small. Summary of the Invention

[0003] The invention discloses a camera module. The electronic components in the camera module have good heat dissipation performance, which facilitates the stable operation of the camera module.

[0004] In a first aspect, the present invention discloses a camera module, comprising:

[0005] A housing with a lens installed therein, wherein a receiving groove is provided in the housing;

[0006] a circuit board assembly accommodated in the accommodating groove, the circuit board assembly comprising at least a first printed circuit board, a second printed circuit board, and a flexible circuit board, one end of the first printed circuit board being connected to one end of the second printed circuit board via the flexible circuit board, and the first printed circuit board and the second printed circuit board being bent between the flexible circuit board so that the first printed circuit board and the second printed circuit board are perpendicular or inclined to each other;

[0007] The electronic components include at least a first electronic component and a second electronic component, wherein the first electronic component is arranged on the first printed circuit board, and the second electronic component is arranged on the second printed circuit board.

[0008] The electronic components in this camera module have good heat dissipation properties, which facilitates the stable operation of the camera module. Specifically, because the flexible circuit board is flexible and bendable, and the first printed circuit board and the second printed circuit board are connected through the flexible circuit board, the flexible circuit board can be bent so that the first printed circuit board and the second printed circuit board are perpendicular to each other or tilted to each other. In this way, when the first electronic component is arranged on the first printed circuit board and the second electronic component is arranged on the second printed circuit board, the first electronic component and the second electronic component will be perpendicular to each other or tilted to each other. When the camera module is operating, the electronic components will begin to heat up due to operation. At this time, because the first electronic component and the second electronic component are perpendicular to each other or tilted to each other, the heat generated by the first electronic component and the second electronic component has little effect on each other, making it easier for the first electronic component and the second electronic component to dissipate heat through their respective printed circuit boards and housings, avoiding the first electronic component and the second electronic component from stopping operation due to excessive temperature.

[0009] In addition, since one end of the first printed circuit board and one end of the second printed circuit board are connected through the flexible circuit board, the flexible circuit board does not occupy the board surface of the printed circuit board, thereby improving the utilization rate of the printed circuit board. At this time, more electronic components or larger electronic components can be arranged on the board surface of the printed circuit board.

[0010] Furthermore, the orthographic projection of the first electronic component on the second printed circuit board is staggered with respect to the second printed circuit board.

[0011] The orthographic projection of the first component on the second printed circuit board is staggered with respect to the second printed circuit board, which reduces the corresponding portion between the first component and the second component. The heat generated by the first electronic component and the second electronic component has less influence on each other, thereby improving the heat dissipation effect.

[0012] Furthermore, the first electronic component is arranged on a surface of the first printed circuit board away from the second printed circuit board, and the second electronic component is arranged on a surface of the second printed circuit board away from the first printed circuit board.

[0013] Therefore, the first electronic component and the second electronic component are not directly opposite to each other, but are arranged back to back. In this way, when the first electronic component and the second electronic component are working, the heat emitted by one electronic component will not directly affect the other electronic component, that is, the heat generated by the two will not cause a "mutual heating" effect on each other, which is conducive to better heat dissipation of the two.

[0014] Furthermore, the first printed circuit board and the second printed circuit board are perpendicular to each other.

[0015] In this case, the circuit board assembly can occupy a small space in the housing, while the heat generated by the first electronic component and the heat generated by the second electronic component can have a small impact on each other.

[0016] Furthermore, the circuit board assembly further includes a third printed circuit board, the electronic components further include a third electronic component, the third electronic component is provided on the third printed circuit board, and the flexible circuit board includes a first flexible circuit board and a second flexible circuit board;

[0017] In a direction parallel to the surface of the first printed circuit board, the first printed circuit board has a first end and a second end oppositely disposed, the first end being adjacent to the second printed circuit board, and the second end being adjacent to the third printed circuit board; wherein the first end is connected to the second printed circuit board via the first flexible printed circuit board, and the first and second printed circuit boards are bent by folding the first flexible printed circuit board so that the first and second printed circuit boards are perpendicular to or inclined to each other; and the second end is connected to the third printed circuit board via the second flexible printed circuit board, and the first and third printed circuit boards are bent by folding the second flexible printed circuit board so that the first and third printed circuit boards are perpendicular to or inclined to each other;

[0018] In a direction perpendicular to the surface of the first printed circuit board, the second printed circuit board and the third printed circuit board are located on the same side of the first printed circuit board, and the second printed circuit board and the third printed circuit board are spaced apart.

[0019] Because the first printed circuit board's ends are connected to the second and third printed circuit boards, respectively, and the second and third printed circuit boards are both perpendicular or tilted relative to the first printed circuit board, the first electronic component is also perpendicular or tilted relative to the second and third electronic components, preventing the heat generated by the first and second electronic components from affecting each other's operation, and preventing the heat generated by the first and third electronic components from affecting each other's operation. Furthermore, the spacing between the second and third printed circuit boards distances the second and third electronic components from each other, minimizing the impact of the heat generated by the second and third electronic components on each other's operation. Furthermore, the second and third printed circuit boards are located on the same side of the first printed circuit board in a direction perpendicular to the surface of the first printed circuit board. This ensures that the heat generated by the first, second, and third electronic components has a minimal impact on each other, while also reducing the overall volume of the circuit board assembly, facilitating a smaller housing.

[0020] Furthermore, the second printed circuit board is perpendicular to the first printed circuit board, and the third printed circuit board is perpendicular to the first printed circuit board.

[0021] In this case, the space occupied by the circuit board assembly in the housing can be reduced, and the heat generated by the first electronic component, the second electronic component, and the third electronic component can have a smaller impact on each other.

[0022] Furthermore, the first electronic component is arranged on a surface of the first printed circuit board away from the second printed circuit board, the second electronic component is arranged on a surface of the second printed circuit board away from the first printed circuit board, and the third electronic component is arranged on a surface of the third printed circuit board away from the first printed circuit board.

[0023] Therefore, the first electronic component, the second electronic component and the third electronic component are not directly opposite to each other, and when the first electronic component, the second electronic component and the third electronic component are working, they will not heat each other.

[0024] Furthermore, the accommodating groove includes a first accommodating groove formed in a direction perpendicular to the optical axis of the lens, the first printed circuit board provided with the first electronic component is embedded in the first accommodating groove, and the surface of the first electronic component is perpendicular to the direction of the optical axis of the lens;

[0025] The accommodating groove also includes a second accommodating groove formed from one side of the first accommodating groove in a direction away from the lens. The second accommodating groove is perpendicular or inclined to the first accommodating groove, and is arranged close to the outer wall of the shell in a direction perpendicular to the optical axis of the lens. The second printed circuit board is embedded in the second accommodating groove.

[0026] First, because the first accommodating groove is perpendicular to the optical axis of the lens, the first printed circuit board is embedded in the first accommodating groove, and the surface of the first electronic component is perpendicular to the optical axis of the lens, thus facilitating the fit between the first electronic component and the lens. Second, because the second accommodating groove is formed away from the lens from the first accommodating groove, the second printed circuit board placed in the second accommodating groove does not transfer heat to the lens, thereby preventing the lens from being affected by heat and affecting the shooting effect. Finally, in a direction perpendicular to the optical axis of the lens, the second accommodating groove is located close to the outer wall of the housing, shortening the distance between the second printed circuit board and the outer wall of the housing, facilitating the transfer of heat from the second printed circuit board to the housing and improving heat dissipation efficiency.

[0027] Furthermore, the shell includes a first shell and a second shell arranged opposite to each other along the direction of the optical axis of the lens, the lens is arranged on the first shell, the first accommodating groove is recessed from the second shell in a direction away from the first shell, and the second accommodating groove is located on the side of the first accommodating groove away from the first shell.

[0028] Among them, since the shell includes a first shell and a second shell arranged opposite to each other, the lens is arranged on the first shell, and the first accommodating groove and the second accommodating groove are arranged on the second shell, the first printed circuit board arranged in the first accommodating groove and the second printed circuit board arranged in the second accommodating groove will transfer heat to the outside through the second shell, thereby avoiding the heat from affecting the lens arranged on the first shell.

[0029] Furthermore, a protruding positioning post is provided at the bottom of the first accommodating groove along the direction of the optical axis of the lens toward the second housing, and the positioning post has a first fixing hole. A positioning hole is provided in the first printed circuit at a position corresponding to the positioning post. The outer diameter of the positioning post is larger than the diameter of the positioning hole, and the diameter of the first fixing hole is equal to the diameter of the positioning hole.

[0030] The circuit board assembly further includes a first fixing member. One side of the first printed circuit board abuts against the positioning post, and the first fixing member sequentially penetrates the positioning hole and the first fixing hole to fix the first printed circuit board in the first receiving groove.

[0031] Among them, since a positioning column protrudes from the bottom of the first receiving groove, the positioning column has a first fixing hole, and the first printed circuit board is provided with a positioning hole at a position corresponding to the positioning column, the first receiving groove and the first printed circuit board can be quickly aligned through the cooperation of the first fixing hole and the positioning hole, which facilitates the fixing of the first printed circuit board in the first receiving groove by the first fixing member.

[0032] Furthermore, in a direction perpendicular to the surface of the first printed circuit board, the first printed circuit board has a first surface and a second surface arranged opposite to each other, the first surface abuts against the positioning column, and the second surface is flush with the surface of the second shell close to the first shell. When the first shell is connected to the second shell, the surface of the first shell close to the second shell abuts against the second surface.

[0033] The first surface of the first printed circuit board is placed on the positioning column, and the second surface of the first printed circuit board is flush with the surface of the second shell close to the first shell. When the first shell and the second shell are connected, the first shell and the positioning column can clamp the first printed circuit board to play a secondary fixing role for the first printed circuit board and prevent the first printed circuit board from shifting during operation.

[0034] Furthermore, in a direction perpendicular to the optical axis of the lens, the first accommodating groove has a first side and a second side opposite to each other, and the housing has a first outer side wall and a second outer side wall opposite to each other;

[0035] The second accommodating groove is formed by extending from the first side in a direction away from the lens, the first accommodating groove and the second accommodating groove are perpendicular to each other or inclined to each other, and the second accommodating groove is arranged close to the first outer side wall;

[0036] The accommodating groove also includes a third accommodating groove, which extends from the second side in a direction away from the lens. The first accommodating groove and the third accommodating groove are perpendicular to or inclined to each other. The second accommodating groove and the third accommodating groove are spaced apart, and the third accommodating groove is arranged close to the second outer side wall.

[0037] Because the second and third accommodating slots are both located on the side of the first accommodating slot away from the lens, the second printed circuit board (PCB) within the second accommodating slot is prevented from transferring heat to the lens, and the third PCB within the third accommodating slot is prevented from transferring heat to the lens, thereby affecting lens operation. Furthermore, the spacing between the second and third accommodating slots prevents heat transfer between the second and third PCBs, which could reduce heat dissipation efficiency. Furthermore, the second and third accommodating slots are both located close to the outer wall of the housing, shortening the distance between the second and third PCBs and the outside world, thereby improving the efficiency of heat transfer between the second and third PCBs.

[0038] Furthermore, the shell includes a first shell and a second shell arranged opposite to each other along the direction of the optical axis of the lens, the lens is arranged on the first shell, and the second shell is concave inward from the side away from the first shell toward the direction close to the lens to form a U-shaped shell, and the second accommodating groove and the third accommodating groove are respectively located on opposite sides of the U-shaped shell.

[0039] Because the housing is U-shaped, and the second and third accommodating grooves are located on opposite sides of the U-shaped housing, both surfaces of the second printed circuit board are relatively close to the outer wall of the housing, thereby improving the heat dissipation efficiency of the second printed circuit board. Similarly, both surfaces of the third printed circuit board are relatively close to the outer wall of the housing, thereby improving the heat transfer efficiency of the third printed circuit board. Furthermore, the side of the first printed circuit board facing away from the lens is also relatively close to the outer wall of the housing, thereby also improving the heat transfer efficiency of the first printed circuit board.

[0040] Furthermore, the first shell and the second shell are detachably connected.

[0041] It is convenient to assemble and repair components such as circuit board assemblies, electronic components and lenses located in the first shell and the second shell.

[0042] Furthermore, in a direction perpendicular to the optical axis of the lens, an outer side wall of the first housing is provided with a first connecting portion, the first connecting portion is provided with a second fixing hole, and an axial direction of the second fixing hole is parallel to the direction of the optical axis of the lens;

[0043] A second connecting portion opposite to the first connecting portion is provided on the outer side wall of the second shell, and a third fixing hole opposite to the second fixing hole is provided on the second connecting portion;

[0044] The housing further includes a second fixing member, which passes through the second fixing hole and the third fixing hole to connect the first housing and the second housing together.

[0045] Among them, by providing a first connecting part on the outer wall of the first shell, providing a second fixing hole on the first connecting part, and providing a second connecting part corresponding to the first connecting part on the outer wall of the second shell, and providing a third fixing hole opposite to the second fixing hole on the second connecting part, it is convenient for the second fixing member to pass through the second fixing hole and the third fixing hole to firmly connect the first shell and the second shell.

[0046] Furthermore, the first electronic component is a photosensitive chip, and the photosensitive chip is arranged on a surface of the first printed circuit board close to the lens along the axial direction of the lens.

[0047] Since the photosensitive chip is arranged on a side of the first printed circuit board close to the lens and the photosensitive chip is located in the axial direction of the lens, it is convenient for the photosensitive chip to process the light signal entering the lens.

[0048] In a second aspect, the present invention discloses a method for installing a camera module, which is used to install the camera module described in the first aspect. The method comprises:

[0049] connecting one end of the first printed circuit board and one end of the second printed circuit board via the flexible circuit board;

[0050] Mounting the first electronic component on the first printed circuit board, and mounting the second electronic component on the second printed circuit board;

[0051] By bending the flexible circuit board, the first printed circuit board and the second printed circuit board are made perpendicular to each other or inclined to each other;

[0052] The first printed circuit board and the second printed circuit board are disposed in the housing on which the lens is mounted.

[0053] The order of first connecting the first and second printed circuit boards via the flexible printed circuit board, then installing the first electronic components on the first printed circuit board and the second electronic components on the second printed circuit board, improves the efficiency of both the installation of the circuit board assembly and the assembly of the circuit board assembly and the electronic components. It also prevents damage to the electronic components during assembly of the circuit board assembly, thereby increasing the lifespan of the electronic components. Furthermore, by pre-bending the flexible printed circuit board so that the first and second printed circuit boards are perpendicular or inclined to each other, it facilitates the matching installation of the first and second printed circuit boards within the housing.

[0054] In a third aspect, the present invention discloses a terminal device, comprising the camera module described in the first aspect.

[0055] Among them, the terminal device has the camera module. Since the camera module has good heat dissipation and small size, it is convenient for the terminal device to use the camera module for shooting or scanning, and it is also beneficial to reduce the size of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0057] Figure 1 Schematic diagram of the structure of the camera module according to the embodiment of the present application;

[0058] Figure 2 This is an exploded view of the camera module according to an embodiment of the present application;

[0059] Figure 3 is a schematic structural diagram of a circuit board assembly (α is an acute angle, and the first fixing member is omitted);

[0060] Figure 4 is a schematic structural diagram of a circuit board assembly (α is an obtuse angle, and the first fixing member is omitted);

[0061] Figure 5 is a schematic structural diagram of the circuit board assembly (α is a right angle, and the first fixing member is omitted);

[0062] Figure 6 Schematic diagram of the structure of the circuit board assembly (α and β are acute angles, and the first fixing member is omitted);

[0063] Figure 7 Schematic diagram of the structure of the circuit board assembly (α and β are obtuse angles, and the first fixing member is omitted);

[0064] Figure 8 Schematic diagram of the structure of the circuit board assembly (α and β are right angles, and the first fixing member is omitted);

[0065] Figure 9 yes Figure 1 Schematic diagram of the camera module viewed from point A;

[0066] Figure 10 yes Figure 9 Cross-sectional view at the middle BB;

[0067] Figure 11 Schematic diagram of heat dissipation of electronic components in the camera module according to an embodiment of the present application;

[0068] Figure 12 It is a flowchart of the installation method of the camera module according to the embodiment of the present application.

[0069] Figure numerals: 1-lens, 2-housing, 21-accommodating groove, 211-first accommodating groove, 2111-positioning column, 2112-first fixing hole, 212-second accommodating groove, 213-third accommodating groove, 22-first housing, 221-first connecting portion, 2211-second fixing hole, 23-second housing, 231-second connecting portion, 2311-third fixing hole, 24-second fixing member, 3-circuit board assembly, 31-first printed circuit board, 311-positioning hole, 312-first surface, 313-second surface, 32-second printed circuit board, 331-first flexible circuit board, 332-second flexible circuit board, 34-third printed circuit board, 35-first fixing member, 41-first electronic component, 42-second electronic component, 43-third electronic component, 5-connecting line, 6-filter, α-first angle, β-second angle. DETAILED DESCRIPTION

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0071] In the present invention, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0072] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0073] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0074] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0075] Before explaining the technical solution of the present application, the application scenarios involved in the embodiments of the present application are first explained.

[0076] As a commonly used module, the camera module is being used more and more widely in various fields. In the relevant camera module, the printed circuit boards inside are arranged in a parallel stacking manner, and the layers of printed circuit boards are connected by connectors, and the electronic components (such as sensors, image processing chips, serializers, etc.) are arranged on the upper and lower surfaces of each layer of printed circuit boards. With this arrangement, the electronic components on each layer of printed circuit boards will correspond to each other, which will cause the electronic components to heat each other, increase the temperature of the electronic components, and then stop the electronic components from working. At the same time, with this arrangement, the connectors connecting the layers of printed circuit boards will occupy a part of the surface of the printed circuit board, so that the area on the surface of the printed circuit board that can be set up for electronic components is smaller, and larger electronic components cannot be set up on the surface of the printed circuit board. Therefore, the present application proposes a camera module to solve the above problems.

[0077] The technical solution of the present invention will be further described below in conjunction with embodiments and drawings.

[0078] Specifically, see Figures 1 to 5 .in, Figure 1 This is a structural diagram of the camera module according to an embodiment of the present application. Figure 2 This is a structural exploded view of the camera module according to an embodiment of the present application. Figure 1 This is a structural diagram of the camera module according to an embodiment of the present application. Figure 2 This is a structural exploded view of the camera module according to an embodiment of the present application. Figure 3 is a schematic diagram of the structure of the circuit board assembly (α is an acute angle, and the first fixing member is omitted). Figure 4 is a schematic diagram of the structure of the circuit board assembly (α is an obtuse angle, and the first fixing member is omitted). Figure 5 : is a schematic diagram of the structure of the circuit board assembly (α is a right angle, and the first fixing member is omitted). The present application provides a camera module, which includes: a housing 2 with a lens 1 installed, a circuit board assembly 3 and electronic components 4. Among them, the housing 2 is provided with a receiving groove 21; the circuit board assembly 3 is accommodated in the receiving groove 21, and the circuit board assembly 3 includes at least a first printed circuit board 31, a second printed circuit board 32 and a flexible circuit board. One end of the first printed circuit board 31 is connected to one end of the second printed circuit board 32 through a flexible circuit board, and the first printed circuit board 31 and the second printed circuit board 32 are bent by bending the flexible circuit board so that the first printed circuit board and the second printed circuit board are perpendicular to each other or inclined to each other; the electronic components include at least a first electronic component 41 and a second electronic component 42, the first electronic component 41 is provided on the first printed circuit board 31, and the second electronic component 42 is provided on the second printed circuit board 32.

[0079] Because the flexible circuit board is flexible and bendable, and the first and second printed circuit boards 31 and 32 are connected via the flexible circuit board, the flexible circuit board can be bent to orient the first and second printed circuit boards 31 and 32 perpendicularly or at an angle to each other. Consequently, when the first electronic component 414 is disposed on the first printed circuit board 31 and the second electronic component 42 is disposed on the second printed circuit board 32, the first and second electronic components 41 and 42 are also perpendicularly or at an angle to each other, thereby separating the first and second electronic components 41 and 42 from each other. When the camera module is operating, the electronic components 4 operate and dissipate heat. Since the first and second electronic components 41 and 42 are separated from each other, the heat generated by each of the first and second electronic components 41 and 42 has minimal impact on each other, allowing the first and second electronic components 41 and 42 to dissipate heat through their respective printed circuit boards and the housing 2, thereby preventing the first and second electronic components 41 and 42 from overheating and potentially causing them to cease operation.

[0080] At the same time, since one end of the first printed circuit board 31 and one end of the second printed circuit board 32 are connected through a flexible circuit board, the flexible circuit board does not occupy the board surface of the printed circuit board, thereby improving the utilization rate of the printed circuit board. At this time, more electronic components or larger electronic components can be arranged on the board surface of the printed circuit board.

[0081] In camera modules of related art, the printed circuit boards (PCBs) are typically stacked in parallel, and connectors are used to connect the layers of PCBs. This causes the electronic components on each layer of PCBs to correspond with each other, leading to mutual heating of the electronic components, which increases the temperature of the electronic components. Furthermore, the connectors also occupy a portion of the PCB surface area. In the camera module of the present application, the first PCB 31 and the second PCB 32 are connected via a flexible PCB. The flexible PCB is bent so that the first PCB 31 and the second PCB 32 are perpendicular or tilted to each other, thereby causing the first electronic component 41 and the second electronic component 42 to be perpendicular or tilted to each other. This means that the surface of the first electronic component 41 and the surface of the second electronic component 42 do not correspond or only partially correspond, resulting in a smaller impact of the heat generated by the first electronic component 41 and the second electronic component 42 on each other.

[0082] In summary, the electronic components in the camera module of the present application have good heat dissipation properties, which facilitates the stable operation of the camera module. At the same time, the utilization rate of the printed circuit board is high, and more electronic components or larger electronic components can be arranged on the board surface of the printed circuit board.

[0083] It should be noted that the circuit board assembly 3 includes at least a first printed circuit board 31, a second printed circuit board 32 and a flexible circuit board. Of course, the circuit board assembly 3 may also include a third printed circuit board 34, a fourth printed circuit board, a first flexible circuit board 331 or a second flexible circuit board 332, etc. This application does not specifically limit the number of printed circuit boards and the number of flexible circuit boards.

[0084] It should also be noted that the fact that the first electronic component 41 is disposed on the first printed circuit board 31 should not be construed as meaning that only one type of electronic component can be disposed on the first printed circuit board 31, or that only one electronic component can be disposed on the first printed circuit board 31. Of course, other electronic components can also be disposed on the first printed circuit board 31, or multiple electronic components can also be disposed on the first printed circuit board 31. This application does not specifically limit the number and type of electronic components disposed on the first printed circuit board 31. Similarly, this application does not specifically limit the number and type of electronic components disposed on the second printed circuit board 32. Specifically, the electronic component can be a photosensitive chip, a serializer, or an image processing chip, etc.

[0085] Also, see Figure 3 Optionally, the first printed circuit board 31 and the second printed circuit board 32 are tilted relative to each other, specifically, they can be Figure 3 The first angle α is an acute angle, that is, the angle between the first printed circuit board 31 and the second printed circuit board 32 is an acute angle, so the first electronic component 41 and the second electronic component 42 can be kept away from each other, so that the heat generated by the first electronic component 41 and the second electronic component 42 respectively have little effect on each other, and the first printed circuit board 31 and the second printed circuit board 32 as a whole occupy a smaller space in the housing 2, which is conducive to miniaturization of the housing 2.

[0086] Optionally, see Figure 4 The first printed circuit board 31 and the second printed circuit board 32 are tilted relative to each other, which can be Figure 4 The first angle α is an obtuse angle, that is, the angle between the first printed circuit board 31 and the second printed circuit board 32 is an obtuse angle. Therefore, the first printed circuit board 31 and the second printed circuit board 32 can be separated from each other, and there are no corresponding parts between them. As a result, the first electronic component 41 and the second electronic component 42 can be separated from each other, and there are no corresponding parts between the first electronic component 41 and the second electronic component 42. This minimizes the impact of the heat generated by the first electronic component 41 and the second electronic component 42 on each other. However, the obtuse angle between the first printed circuit board 31 and the second printed circuit board 32, compared to an acute angle, means that the first printed circuit board 31 and the second printed circuit board 32 occupy a larger volume of the housing 2 in this embodiment.

[0087] Preferably, see Figure 5 , the first printed circuit board 31 and the second printed circuit board 32 are perpendicular to each other, that is, Figure 5 The first angle α is a right angle. In this case, compared to an acute angle, the heat generated by the first electronic component 41 and the second electronic component 42 in this embodiment has less impact on each other. Compared to an obtuse angle, the first printed circuit board 31 and the second printed circuit board 32 in this embodiment occupy a smaller volume of the housing 2. Therefore, the first printed circuit board 31 and the second printed circuit board 32 are perpendicular to each other, which not only reduces the space occupied by the circuit board assembly 3 in the housing 2 but also minimizes the impact of the heat generated by the first electronic component 41 and the second electronic component 42 on each other.

[0088] To minimize the impact of heat generated by the first electronic component 41 and the second electronic component 42 on each other, in the embodiment of the present application, the orthographic projection of the first electronic component 41 on the second printed circuit board 32 is offset from the second printed circuit board 32. This arrangement allows the first electronic component 41 on the first printed circuit board 31 and the second electronic component 42 on the second printed circuit board 32 to be spaced apart from each other, and the number of corresponding portions between the first electronic component 41 and the second electronic component 42 is relatively small. Therefore, the first electronic component 41 and the second electronic component 42 do not heat each other, or the heating effect is minimal, thereby ensuring that both the first electronic component 41 and the second electronic component 42 maintain stable operation.

[0089] Please continue reading Figure 3 The first electronic component 41 is provided on a side of the first printed circuit board 31 away from the second printed circuit board 32 (i.e. Figure 3 The second electronic component 42 is provided on the surface of the second printed circuit board 32 away from the first printed circuit board 31. Figure 3 The left side surface of the second printed circuit board 32).

[0090] Among them, because the first electronic component 41 and the second electronic component 42 are separated by the first printed circuit board 31 and the second printed circuit board 32, the first electronic component 41 and the second electronic component 42 are not directly opposite each other, but are arranged back to back. In this way, when the first electronic component 41 and the second electronic component 42 are working, the two printed circuit boards can isolate the heat generated by the first electronic component 41 and the second electronic component 42 and transfer the heat to the housing 2 for heat dissipation, so that the first electronic component 41 and the second electronic component 42 do not heat each other. In other words, the heat emitted by one electronic component will not directly affect the other electronic component, that is, the heat generated by the two electronic components will not cause "mutual heating" effect, which is conducive to better heat dissipation between the two.

[0091] In addition, the first electronic component 41 is arranged on the side of the first printed circuit board 31 away from the second printed circuit board 32, and the second electronic component 42 is arranged on the side of the second printed circuit board 32 away from the first printed circuit board 31. When the circuit board assembly 3 is placed in the shell 2, the first electronic component 41 and the second electronic component 42 will both be close to the outer wall of the shell 2, which makes it convenient for the first electronic component 41 and the second electronic component 42 to directly transfer heat to the outer wall of the shell 2, thereby improving the heat dissipation efficiency.

[0092] Further, see Figures 6 to 8 The circuit board assembly 3 further includes a third printed circuit board 34, and the electronic components further include a third electronic component 43, which is arranged on the third printed circuit board 34; the flexible circuit board includes a first flexible circuit board 331 and a second flexible circuit board 332; in a direction parallel to the board surface of the first printed circuit board 31 (i.e. Figure 6 The first printed circuit board 31 has first ends (i.e. Figure 6 The left end of the first printed circuit board) and the second end (i.e. Figure 6 The first end is adjacent to the second printed circuit board 32, and the second end is adjacent to the third printed circuit board 34; wherein, the first end is connected to the second printed circuit board 32 through the first flexible circuit board 331, and the first printed circuit board 31 and the second printed circuit board 32 are bent by the first flexible circuit board 331 so that the first printed circuit board 31 and the second printed circuit board 32 are perpendicular to each other or inclined to each other; the second end is connected to the third printed circuit board 34 through the second flexible circuit board 332, and the first printed circuit board 31 and the third printed circuit board 34 are bent by the second flexible circuit board 332 so that the first printed circuit board 31 and the third printed circuit board 34 are perpendicular to each other or inclined to each other; in the direction perpendicular to the board surface of the first printed circuit board 31 (that is, Figure 6In the vertical direction, the second printed circuit board 32 and the third printed circuit board 34 are located on the same side of the first printed circuit board 31, and the second printed circuit board 32 and the third printed circuit board 34 are spaced apart.

[0093] Among them, since the first end of the first printed circuit board 31 is connected to the second printed circuit board 32, and the second end is connected to the third printed circuit board 34, and the second printed circuit board 32 and the third printed circuit board 34 are perpendicular to or inclined to the first printed circuit board 31, the first electronic component 41 will also be perpendicular to or inclined to the second electronic component 42 and the third electronic component 43, thereby preventing the heat generated by the first electronic component 414 and the second electronic component 42 from affecting each other's work, and preventing the heat generated by the first electronic component 41 and the third electronic component 43 from affecting each other's work. At the same time, the second printed circuit board 32 and the third printed circuit board 34 are arranged at intervals, which can keep the second electronic component 42 and the third electronic component 43 away from each other, reducing the heat generated by the second electronic component 42 and the third electronic component 43 from affecting each other's work. On this basis, in the board direction perpendicular to the first printed circuit board 31 (that is, Figure 6 In the vertical direction, the second printed circuit board 32 and the third printed circuit board 34 are located on the same side of the first printed circuit board 31, which can ensure that the heat generated by the first electronic component 41, the second electronic component 42 and the third electronic component 43 have little effect on each other, and can make the overall volume of the circuit board assembly 3 smaller, so as to facilitate reducing the volume of the housing 2.

[0094] It should be noted that the second PCB 32 and the third PCB 34 can also be connected to the two adjacent ends of the first PCB 31, with the second PCB 32 and the first PCB 31 being perpendicular or tilted relative to each other, and the third PCB 34 being perpendicular or tilted relative to the first PCB 31. This arrangement can also distance the first electronic components 41, the second electronic components 42, and the third electronic components 43 from each other, minimizing the impact of the heat generated by each of the first electronic components 41, the second electronic components 42, and the third electronic components 43 on each other. However, connecting the second PCB 32 and the third PCB 34 to the opposite ends of the first PCB 31 provides better heat dissipation than connecting the second PCB 32 and the third PCB 34 to the adjacent ends of the first PCB 31.

[0095] Optionally, see Figure 6The first printed circuit board 31 and the second printed circuit board 32 are inclined relative to each other, and the first printed circuit board 31 and the third printed circuit board 34 are inclined relative to each other. The first angle α can be acute, and the second angle β can also be acute. This allows the first electronic component 41, the second electronic component 42, and the third electronic component 43 to be spaced apart from each other. As a result, the heat generated by each of the first electronic component 41, the second electronic component 42, and the third electronic component 43 has less impact on each other. Furthermore, the first printed circuit board 31, the second printed circuit board 32, and the third printed circuit board 34 collectively occupy less space within the housing 2, contributing to a smaller size of the housing 2.

[0096] Optionally, see Figure 7 The first printed circuit board 31 and the second printed circuit board 32 are inclined relative to each other, and the first printed circuit board 31 and the third printed circuit board 34 are inclined relative to each other. Alternatively, the first angle α and the second angle β can be obtuse. Therefore, the first printed circuit board 31 and the second printed circuit board 32 can be spaced apart from each other, with no corresponding portions between them. This allows the first electronic component 41 and the second electronic component 42 to be spaced apart from each other, with no corresponding portions between them. This minimizes the effect of heat generated by the first and second electronic components 41 and 42 on each other. Furthermore, the first printed circuit board 31 and the third printed circuit board 34 can be spaced apart from each other, with no corresponding portions between them. This allows the first electronic component 41 and the third electronic component 43 to be spaced apart from each other, with no corresponding portions between them. This minimizes the effect of heat generated by the first and third electronic components 41 and 43 on each other.

[0097] At the same time, the second printed circuit board 32 and the third printed circuit board 34 can be spaced apart from each other, thereby separating the second electronic component 42 and the third electronic component 43, thereby reducing their mutual influence. However, since the first angle α is obtuse and the second angle β is also obtuse, compared to the first angle α and the second angle β being acute, the combined volume of the housing 2 occupied by the first printed circuit board 31, the second printed circuit board 32, and the third printed circuit board 34 in this embodiment is larger.

[0098] Preferably, see Figure 8 The second printed circuit board 32 is perpendicular to the first printed circuit board 31, and the third printed circuit board 34 is perpendicular to the first printed circuit board 31, that is, the first angle α is a right angle and the second angle β is also a right angle. In this way, the circuit board assembly 3 can occupy a small space in the housing 2, and the heat generated by the first electronic component 41, the second electronic component 42 and the third electronic component 43 can have less impact on each other.

[0099] It should be noted that the second printed circuit board 32 and the third printed circuit board 34 can also be located on both sides of the upper and lower surfaces of the first printed circuit board 31. In this case, although the heat generated by the first electronic component 41, the second electronic component 42 and the third electronic component 43 can be guaranteed to have little impact on each other, compared to when the second printed circuit board 32 and the third printed circuit board 34 are located on the same side of the first printed circuit board 31, the overall volume of the circuit board assembly 3 is larger and occupies more space in the shell 2.

[0100] Furthermore, the first electronic component 41 is arranged on the side of the first printed circuit board 31 away from the second printed circuit board 32, the second electronic component 42 is arranged on the side of the second printed circuit board 32 away from the first printed circuit board 31, and the third electronic component 43 is arranged on the side of the third printed circuit board 34 away from the first printed circuit board 31.

[0101] Among them, since the first electronic component 41, the second electronic component 42, and the third electronic component 43 are separated by the first printed circuit board 31, the second printed circuit board 32, and the third printed circuit board 34 respectively, the first electronic component 41, the second electronic component 424, and the third electronic component 43 will not be directly opposite to each other. When the first electronic component 41, the second electronic component 42, and the third electronic component 43 are working, the three printed circuit boards can isolate the heat generated by the first electronic component 41, the second electronic component 42, and the third electronic component 43, and transfer it to the shell 2 for heat dissipation, so that the first electronic component 41, the second electronic component 42, and the third electronic component 43 will not heat each other.

[0102] In addition, the first electronic component 41 is disposed on a surface of the first printed circuit board 31 that is away from the second printed circuit board 32, the second electronic component 42 is disposed on a surface of the second printed circuit board 32 that is away from the first printed circuit board 31, and the third electronic component 43 is disposed on a surface of the third printed circuit board 34 that is away from the first printed circuit board 31. When the circuit board assembly 3 is housed within the housing 2, the first electronic component 41, the second electronic component 42, and the third electronic component 43 are all located close to the outer wall of the housing 2, allowing the first electronic component 41, the second electronic component 42, and the third electronic component 43 to directly transfer heat to the outer wall of the housing 2, thereby improving heat dissipation efficiency.

[0103] See also Figures 9 to 11The accommodating groove 21 includes a first accommodating groove 211 formed in a direction perpendicular to the optical axis of the lens 1. The first printed circuit board 31 provided with the first electronic component 41 is embedded in the first accommodating groove 211. The surface of the first electronic component 41 is perpendicular to the direction of the optical axis of the lens 1. The accommodating groove 21 also includes a second accommodating groove 212 formed from one side of the first accommodating groove 211 toward the direction away from the lens 1. The second accommodating groove 212 and the first accommodating groove 211 are perpendicular or inclined to each other. The second printed circuit board 32 is embedded in the second accommodating groove 212.

[0104] Among them, the direction of the optical axis of lens 1 refers to Figure 10 Because the first accommodating groove 211 is perpendicular to the optical axis of the lens 1, the first printed circuit board 31 is embedded in the first accommodating groove 211, and the surface of the first electronic component 41 is perpendicular to the axial direction of the lens 1, thus facilitating the fit between the first electronic component 41 and the lens 1. Furthermore, because the second accommodating groove 212 is formed away from the first accommodating groove 211, the second printed circuit board 32 placed in the second accommodating groove 212 does not transfer heat to the lens 1, thereby avoiding affecting the shooting effect of the lens 1.

[0105] In addition, when the second electronic component 42 is located on the side of the second printed circuit board 32 close to the outer wall of the housing 2, that is, the second electronic component 42 is located Figure 10 When the left side of the second printed circuit board 32 is positioned in the middle, the second electronic component 42 is in direct contact with the outer side wall of the housing 2 , thereby improving the heat dissipation efficiency of the second electronic component 42 .

[0106] Furthermore, the housing 2 includes a first housing 22 and a second housing 23 that are arranged opposite to each other along the direction of the optical axis of the lens 1. The lens 1 is arranged on the first housing 22. The first accommodating groove 211 is recessed from the second housing 23 in a direction away from the first housing 22. The second accommodating groove 212 is located on the side of the first accommodating groove 211 away from the first housing 22.

[0107] Because the housing 2 includes a first housing 22 and a second housing 23 disposed opposite each other, the lens 1 is disposed on the first housing 22, and the first receiving groove 211 and the second receiving groove 212 are both disposed on the second housing 23, the first printed circuit board 31 disposed in the first receiving groove 211 and the second printed circuit board 32 disposed in the second receiving groove 212 will both transfer heat to the outside through the second housing 23, thereby preventing the heat from affecting the lens 1 disposed on the first housing 22. Furthermore, the fact that both the first receiving groove 211 and the second receiving groove 212 are disposed on the second housing 23 facilitates the overall installation of the circuit board assembly 3 within the second housing 23.

[0108] In some embodiments, please combine Figure 2 and Figure 10 The bottom of the first accommodating groove 211 is provided with a protruding positioning post 2111 along the direction of the optical axis of the lens 1 toward the first housing 22, and the positioning post 2111 has a first fixing hole 2112. The first printed circuit board 31 is provided with a positioning hole 311 at a position corresponding to the positioning post 2111. The outer diameter of the positioning post 2111 is larger than the diameter of the positioning hole 311, and the diameter of the first fixing hole 2112 is equal to the diameter of the positioning hole 311; the circuit board assembly 3 also includes a first fixing member 35. One surface of the first printed circuit board 31 abuts the positioning post 2111, and the first fixing member 35 is sequentially inserted into the positioning hole 311 and the first fixing hole 2112 to fix the first printed circuit board 31 in the first accommodating groove 211.

[0109] Among them, since the first receiving groove 211 is provided with a positioning post 2111, the positioning post 2111 has a first fixing hole 2112, and the first printed circuit board 31 is provided with a positioning hole 311 at a position corresponding to the positioning post 2111, the first fixing hole 2112 cooperates with the positioning hole 311 to achieve rapid alignment of the first receiving groove 211 and the first printed circuit board 31, making it easier to fix the first printed circuit board 31 in the first receiving groove 211 through the first fixing member 35, thereby improving the installation efficiency of the first printed circuit board 31.

[0110] In addition, since the positioning post 2111 is formed by protruding from the bottom surface of the first receiving groove 211, and one side of the first printed circuit board 31 abuts against the positioning post 2111, the positioning post 2111 can separate the first printed circuit board 31 from the bottom surface of the first receiving groove 211, so that the electronic component 4 can also be set on the side of the first printed circuit board 31 close to the bottom surface of the first receiving groove 211, thereby improving the utilization rate of the first printed circuit board 31.

[0111] It should be noted that the first fixing member 35 can be a bolt, a screw, a latch, etc., as long as it can fix the first fixing hole 2112 and the positioning hole 311 together. This application does not limit the specific structure of the first fixing member 35.

[0112] In other embodiments, the first printed circuit board 31 is directly bonded or clamped in the first receiving groove 211 to fix the first printed circuit board 31 in the first receiving groove 211. The present application does not specifically limit the fixing method of the first printed circuit board 31.

[0113] Please continue reading Figure 10 , in a direction perpendicular to the surface of the first printed circuit board 31 (ie Figure 10In the up-down direction in the figure, the first printed circuit board 31 has a first surface 312 and a second surface 313 that are arranged opposite to each other. The first surface 312 abuts the positioning post 2111, and the second surface 313 is flush with the surface of the second shell 23 close to the first shell 22. When the first shell 22 and the second shell 23 are connected, the surface of the first shell 22 close to the second shell 23 abuts the second surface 313.

[0114] Among them, the first surface 311 of the first printed circuit board 31 abuts against the positioning post 2111, and the second surface 312 of the first printed circuit board 31 is flush with the surface of the second shell 23 close to the first shell 22. When the first shell 22 and the second shell 23 are connected, the first shell 22 and the positioning post 2111 can clamp the first printed circuit board 31 to play a secondary fixing role for the first printed circuit board 31, thereby preventing the first printed circuit board 31 from shifting during operation.

[0115] In the embodiment of the present application, along the direction perpendicular to the optical axis of the lens 1, the first accommodating groove 211 has first sides ( Figure 10 The left side of the first accommodating groove 211) and the second side ( Figure 10 The housing has a first outer side wall ( Figure 10 The left outer wall of the middle shell) and the second outer wall ( Figure 10 The right outer wall of the middle shell); the second accommodating groove 212 extends from the first side toward the direction away from the lens 1, the first accommodating groove 211 and the second accommodating groove 212 are perpendicular to each other or inclined to each other, and the second accommodating groove 212 is arranged close to the first outer wall; the accommodating groove 21 also includes a third accommodating groove 213, the third accommodating groove 213 extends from the second side toward the direction away from the lens 1, the first accommodating groove 211 and the third accommodating groove 213 are perpendicular to each other or inclined to each other, the second accommodating groove 212 and the third accommodating groove 213 are arranged at intervals, and the third accommodating groove 213 is arranged close to the second outer wall.

[0116] Because the second accommodating groove 212 and the third accommodating groove 213 are both located on the side of the first accommodating groove 211 away from the lens 1, the second printed circuit board 212 disposed in the second accommodating groove 212 is prevented from transferring heat to the lens 1, and the third printed circuit board 34 disposed in the third accommodating groove 213 is prevented from transferring heat to the lens 1, thereby affecting the operation of the lens 1. Furthermore, the second accommodating groove 212 and the third accommodating groove 213 are separated, separating the second printed circuit board 32 contained in the second accommodating groove 212 from the third printed circuit board 34 contained in the third accommodating groove 213, thereby preventing heat transfer between the second and third printed circuit boards 34 and reducing heat dissipation efficiency. Furthermore, the second accommodating groove 212 and the third accommodating groove 213 are both located near the outer wall of the housing 2, shortening the distance between the third electronic component 43 and the third printed circuit board 34 and the outside world, thereby improving the heat transfer efficiency of the third printed circuit board 34.

[0117] In the embodiment of the present application, the housing 2 includes a first housing 22 and a second housing 23 arranged opposite to each other along the direction of the optical axis of the lens 1. The lens 1 is arranged on the first housing 22, and the second housing 23 is concave from the side away from the first housing 22 toward the direction close to the lens 1 to form a U-shaped housing. The second accommodating groove 212 and the third accommodating groove 213 are respectively located on opposite sides of the U-shaped housing.

[0118] Please combine Figure 10 and Figure 11 Since the second housing 23 is a U-shaped housing, and the second accommodating groove 212 and the third accommodating groove 213 are respectively located on opposite sides of the U-shaped housing, that is, the second accommodating groove 212 and the third accommodating groove 213 are respectively located Figure 10 The left and right shells of the second shell 23 are shown in FIG. At this time, both surfaces of the second printed circuit board 32 are relatively close to the outer wall of the left shell, which facilitates the second printed circuit board 32 and the second electronic component 42 to dissipate heat simultaneously from both sides of the left shell, thereby improving the heat transfer efficiency of the second printed circuit board 32 and the heat dissipation efficiency of the second electronic component 42. Similarly, both surfaces of the third printed circuit board 34 are relatively close to the outer wall of the right shell, which facilitates the third printed circuit board 34 and the third electronic component 43 to dissipate heat simultaneously from both sides of the right shell, thereby improving the heat transfer efficiency of the third printed circuit board 34 and the heat dissipation efficiency of the third electronic component 43.

[0119] At the same time, the side of the first printed circuit board 31 away from the lens 1 will also align with the concave side of the U-shaped housing (i.e. Figure 10 The bottom surface of the first accommodating groove 211 is close to the bottom surface of the first accommodating groove 211, thereby improving the heat transfer efficiency of the first printed circuit board 31.

[0120] In addition, the U-shaped shell has a recessed portion (i.e. Figure 10The lower middle part of the middle shell body) is also convenient for reducing the volume of the second shell body 23, thereby facilitating reducing the volume of the entire shell body 2.

[0121] Furthermore, the camera module also includes a connecting wire 5, through which the camera module can be connected to other modules. At this time, the connecting wire 5 can be led out from the recessed portion, and one end of the connecting wire 5 can be fixed at the recessed portion through a fixing member, thereby facilitating the recessed portion to accommodate the fixing member in the recessed portion.

[0122] It should be noted that the second housing 23 is a U-shaped housing, which means that the second housing 23 has two legs. These two legs can also ensure stable placement of the camera module. Of course, the second housing 23 can also be concave from the side away from the first housing 22 toward the direction close to the lens 1 to form a housing with three or four legs. This application does not specifically limit the number of legs. In this way, the camera module can be placed more stably. In addition, the interior of each leg can also be a cavity for accommodating different printed circuit boards, thereby isolating the printed circuit boards from each other and not affecting each other, thereby improving heat dissipation of the printed circuit boards.

[0123] In the present application, the first housing 22 and the second housing 23 are detachably connected. Since the first housing 22 and the second housing 23 are detachably connected, it is convenient to assemble and repair components such as the circuit board assembly 3, electronic components 4, and the lens 1 located in the first housing 22 and the second housing 23.

[0124] In some embodiments, see Figure 2 In a direction perpendicular to the optical axis of the lens 1, the outer wall of the first housing 22 is provided with a first connecting portion 221, and the first connecting portion 221 is provided with a second fixing hole 2211. The axial direction of the second fixing hole 2211 is parallel to the optical axis of the lens 1. The outer wall of the second housing 23 is provided with a second connecting portion 231 opposite to the first connecting portion 221, and the second connecting portion 231 is provided with a third fixing hole 2311 opposite to the second fixing hole 2211. The housing 2 also includes a second fixing member 24, which is inserted into the second fixing hole 2211 and the third fixing hole 2311 to connect the first housing 22 and the second housing 23 together. The second fixing hole 2211 on the outer wall of the first housing 22 and the third fixing hole 2311 on the outer wall of the second housing 23 facilitates the second fixing member 24 to pass through the fixing holes of the two housings to securely connect the first housing 22 and the second housing 23.

[0125] It should be noted that the second fixing member 24 can be a bolt, a screw, a pin, etc., as long as it can connect the fixing holes 24 of the first shell 22 and the second shell 23 together. This application does not limit the specific structure of the second fixing member 24.

[0126] In other embodiments, one side of the first shell 22 is rotatably connected to one side of the second shell 23, such as by a rotating shaft or hinge, and the other side of the first shell 22 is snap-fitted to the other side of the second shell 23, thereby connecting the first shell 22 and the second shell 23. This application does not limit the specific connection method between the first shell 22 and the second shell 23.

[0127] In this embodiment of the present application, the first electronic component 41 is a photosensitive chip, which is disposed on a side of the first printed circuit board 31 close to the lens 1, along the optical axis of the lens 1. Since the photosensitive chip is disposed on a side of the first printed circuit board 31 close to the lens 1 and is located in the direction of the optical axis of the lens 1, it facilitates the photosensitive chip's processing of light signals entering the lens 1. Furthermore, the second electronic component 42 may be an image processing chip, which is connected to the photosensitive chip via the second printed circuit board 32 and the first flexible printed circuit board 331. The third electronic component 43 may be a serializer, which is connected to the photosensitive chip via the third printed circuit board 34 and the second flexible printed circuit board 332.

[0128] See also Figure 12 The present application also provides a method for installing a camera module. The method is used for the camera module described above. The method includes:

[0129] Step 1: Connect one end of the first printed circuit board 31 and one end of the second printed circuit board 32 through a flexible circuit board;

[0130] Step 2: Mounting the first electronic component 41 on the first printed circuit board 31 and mounting the second electronic component 42 on the second printed circuit board 32;

[0131] Step 3: bend the flexible circuit board so that the first printed circuit board 31 and the second printed circuit board 32 are perpendicular to or inclined to each other;

[0132] Step 4: Place the first printed circuit board 31 and the second printed circuit board 32 in the housing 2 on which the lens 1 is mounted.

[0133] The embodiment of the present application utilizes an installation sequence that first connects the first printed circuit board 31 and the second printed circuit board 32 via a flexible printed circuit board, then installs the first electronic component 41 on the first printed circuit board 31 and the second electronic component 42 on the second printed circuit board 32. This sequence improves the efficiency of installing the circuit board assembly 3 and the assembly efficiency of the circuit board assembly 3 and the electronic components 4. It also prevents damage to the electronic components 4 during assembly of the circuit board assembly 3, thereby increasing the lifespan of the electronic components 4. Furthermore, by pre-bending the flexible printed circuit board so that the first printed circuit board 31 and the second printed circuit board 32 are perpendicular or inclined to each other, it facilitates the matching installation of the first printed circuit board 31 and the second printed circuit board 32 within the housing 2.

[0134] Furthermore, the second step of the installation method is to install the photosensitive chip on the first printed circuit board 31; wire bond the photosensitive chip to the first printed circuit board 31; and mount the image processing chip and the serializer on the second printed circuit board 32 and the third printed circuit board 34 respectively.

[0135] Step three of the installation method is to bend the first flexible circuit board 331 so that the first angle α is formed between the first printed circuit board 31 and the second printed circuit board 32, and to bend the second flexible circuit board 332 so that the second angle β is formed between the first printed circuit board 31 and the third printed circuit board 34, and to position the second printed circuit board 32 and the third printed circuit board 34 on the same side.

[0136] Step four of the installation method is to fix the lens 1 and filter 6 in the first housing 22, and fix the first printed circuit board 31, the second printed circuit board 32, and the third printed circuit board 34 in the second housing 23; apply sealant to the joint between the first housing 22 and the second housing 23; and fix the first housing 22 and the second housing 23 together.

[0137] The lens 1 and filter 6 are secured within the first housing 22, while the first, second, and third printed circuit boards 31, 32, and 34 are secured within the second housing 23. This facilitates modular assembly of the components and improves assembly efficiency. Sealant is applied between the first and second housings 22, 23 to prevent dust, moisture, and other substances from entering the housing 2, thereby extending the lifespan of the camera module.

[0138] The present application also provides a terminal device including the aforementioned camera module. Since the terminal device includes the camera module, and the camera module has good heat dissipation and is compact, the terminal device can conveniently use the camera module for shooting or scanning, while also helping to reduce the size of the terminal device.

[0139] It should be noted that the terminal device can be a vehicle-mounted camera device, a monitoring device, a mobile terminal, etc., as long as the camera module is used. This application does not specifically limit the type of terminal device.

[0140] The above is a detailed introduction to a camera module, a camera module installation method and a terminal device disclosed in an embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the camera module, the camera module installation method and the terminal device of the present invention and their core ideas. At the same time, for general technical personnel in this field, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A camera module, characterized in that: include: A housing with a lens installed therein, wherein a receiving groove is provided in the housing; a circuit board assembly accommodated in the accommodating groove, the circuit board assembly comprising at least a first printed circuit board, a second printed circuit board, and a flexible circuit board, one end of the first printed circuit board being connected to one end of the second printed circuit board via the flexible circuit board, and the first printed circuit board and the second printed circuit board being bent between the flexible circuit board so that the first printed circuit board and the second printed circuit board are perpendicular or inclined to each other; The electronic components include at least a first electronic component and a second electronic component, wherein the first electronic component is provided on the first printed circuit board, the second electronic component is provided on the second printed circuit board, and the first electronic component and the second electronic component are separated from each other; The accommodating groove includes a first accommodating groove formed in a direction perpendicular to the optical axis of the lens, and the first printed circuit board provided with the first electronic component is embedded in the first accommodating groove, and the surface of the first electronic component is perpendicular to the direction of the optical axis of the lens; the accommodating groove also includes a second accommodating groove formed from one side of the first accommodating groove in a direction away from the lens, the second accommodating groove and the first accommodating groove are perpendicular or inclined to each other, and in a direction perpendicular to the optical axis of the lens, the second accommodating groove is arranged close to the outer wall of the shell, and the second printed circuit board is embedded in the second accommodating groove.

2. The camera module according to claim 1, wherein: The orthographic projection of the first electronic component on the second printed circuit board is staggered with respect to the second printed circuit board.

3. The camera module according to claim 2, wherein: The first electronic component is arranged on a surface of the first printed circuit board away from the second printed circuit board, and the second electronic component is arranged on a surface of the second printed circuit board away from the first printed circuit board.

4. The camera module according to claim 1, wherein: The first printed circuit board and the second printed circuit board are perpendicular to each other.

5. The camera module according to claim 1, wherein: The circuit board assembly further includes a third printed circuit board, the electronic components further include a third electronic component, the third electronic component is arranged on the third printed circuit board, and the flexible circuit board includes a first flexible circuit board and a second flexible circuit board; In a direction parallel to the surface of the first printed circuit board, the first printed circuit board has a first end and a second end oppositely disposed, the first end being adjacent to the second printed circuit board, and the second end being adjacent to the third printed circuit board; wherein the first end is connected to the second printed circuit board via the first flexible printed circuit board, and the first and second printed circuit boards are bent by folding the first flexible printed circuit board so that the first and second printed circuit boards are perpendicular to or inclined to each other; and the second end is connected to the third printed circuit board via the second flexible printed circuit board, and the first and third printed circuit boards are bent by folding the second flexible printed circuit board so that the first and third printed circuit boards are perpendicular to or inclined to each other; In a direction perpendicular to the surface of the first printed circuit board, the second printed circuit board and the third printed circuit board are located on the same side of the first printed circuit board, and the second printed circuit board and the third printed circuit board are spaced apart.

6. The camera module according to claim 5, wherein: The second printed circuit board is perpendicular to the first printed circuit board, and the third printed circuit board is perpendicular to the first printed circuit board.

7. The camera module according to claim 5, wherein: The first electronic component is arranged on a surface of the first printed circuit board away from the second printed circuit board, the second electronic component is arranged on a surface of the second printed circuit board away from the first printed circuit board, and the third electronic component is arranged on a surface of the third printed circuit board away from the first printed circuit board.

8. The camera module according to claim 1, wherein: The shell includes a first shell and a second shell arranged opposite to each other along the optical axis of the lens. The lens is arranged on the first shell. The first accommodating groove is recessed from the second shell in a direction away from the first shell. The second accommodating groove is located on the side of the first accommodating groove away from the first shell.

9. The camera module according to claim 8, wherein: A protruding positioning post is provided at the bottom of the first accommodating groove, facing the first housing along the direction of the optical axis of the lens, and the positioning post has a first fixing hole. A positioning hole is provided at a position corresponding to the positioning post on the first printed circuit. The outer diameter of the positioning post is larger than the diameter of the positioning hole, and the diameter of the first fixing hole is equal to the diameter of the positioning hole. The circuit board assembly further includes a first fixing member. One side of the first printed circuit board abuts against the positioning post, and the first fixing member sequentially penetrates the positioning hole and the first fixing hole to fix the first printed circuit board in the first receiving groove.

10. The camera module according to claim 9, wherein: In a direction perpendicular to the surface of the first printed circuit board, the first printed circuit board has a first surface and a second surface arranged opposite to each other, the first surface abuts the positioning column, and the second surface is flush with the surface of the second shell close to the first shell. When the first shell and the second shell are connected, the surface of the first shell close to the second shell abuts the second surface.

11. The camera module according to claim 1, wherein: In a direction perpendicular to the optical axis of the lens, the first accommodating groove has a first side and a second side opposite to each other, and the housing has a first outer side wall and a second outer side wall opposite to each other; The second accommodating groove is formed by extending from the first side in a direction away from the lens, the first accommodating groove and the second accommodating groove are perpendicular to each other or inclined to each other, and the second accommodating groove is arranged close to the first outer side wall; The accommodating groove also includes a third accommodating groove, which extends from the second side in a direction away from the lens. The first accommodating groove and the third accommodating groove are perpendicular to or inclined to each other. The second accommodating groove and the third accommodating groove are spaced apart, and the third accommodating groove is arranged close to the second outer side wall.

12. The camera module according to claim 11, wherein: The shell includes a first shell and a second shell arranged opposite to each other along the optical axis of the lens. The lens is arranged on the first shell, and the second shell is concave inward from the side away from the first shell toward the direction close to the lens to form a U-shaped shell. The second accommodating groove and the third accommodating groove are respectively located on opposite sides of the U-shaped shell.

13. The camera module according to any one of claims 8 to 10, characterized in that: The first shell and the second shell are detachably connected.

14. The camera module according to claim 13, wherein: A first connecting portion is provided on the outer side wall of the first housing in a direction perpendicular to the optical axis of the lens, a second fixing hole is provided on the first connecting portion, and an axial direction of the second fixing hole is parallel to the direction of the optical axis of the lens; A second connecting portion opposite to the first connecting portion is provided on the outer side wall of the second shell, and a third fixing hole opposite to the second fixing hole is provided on the second connecting portion; The housing further includes a second fixing member, which passes through the second fixing hole and the third fixing hole to connect the first housing and the second housing together.

15. The camera module according to any one of claims 1 to 7, characterized in that: The first electronic component is a photosensitive chip, and the photosensitive chip is arranged on a side of the first printed circuit board close to the lens along the direction of the optical axis of the lens.

16. A method for installing a camera module, characterized in that: The installation method is used to install the camera module according to any one of claims 1 to 15, the installation method comprising: connecting one end of the first printed circuit board and one end of the second printed circuit board via the flexible circuit board; Mounting the first electronic component on the first printed circuit board, and mounting the second electronic component on the second printed circuit board; By bending the flexible circuit board, the first printed circuit board and the second printed circuit board are made perpendicular to each other or inclined to each other; The first printed circuit board and the second printed circuit board are disposed in the housing on which the lens is mounted.

17. A terminal device, characterized in that: Comprising a camera module as described in any one of claims 1-15.

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