WO2020103690A1

WO2020103690A1 - Multi-camera module and mobile terminal

Info

Publication number: WO2020103690A1
Application number: PCT/CN2019/115989
Authority: WO
Inventors: 宦吉全; 于元升; 贾宾宾; 张前; 叶本志
Original assignee: 惠州Tcl移动通信有限公司
Priority date: 2018-11-21
Filing date: 2019-11-06
Publication date: 2020-05-28
Also published as: CN109510929A; CN109510929B

Abstract

Disclosed in the present application are a multi-camera module and a mobile terminal. The multi-camera module comprises at least two cameras, as well as a front shell mold insert, a main board, and a camera decorating part sequentially arranged in the optical axis direction of the at least two cameras. The at least two cameras penetrate through the main board. First ends of the at least two cameras are respectively embedded into the camera decorating part, and the front shell mold insert and the camera decorating part abut against the cameras along two ends of said cameras.

Description

Multi-camera module and mobile terminal

This application requires the priority of the Chinese patent application filed on November 21, 2018 in the Chinese Patent Office, with the application number 201811394137.4 and the invention titled "multi-camera module and mobile terminal", the entire content of which is incorporated by reference in this application .

Technical field

This application relates to the field of intelligent communication technology, in particular to a multi-camera module and a mobile terminal.

Background technique

With the development of communication technology and the popularization of communication products, mobile phones have become an indispensable communication tool for users, and they have irreplaceable functions in people's daily lives, making it convenient for users to communicate with relatives, friends and colleagues at any time.

With the rapid development of the mobile terminal industry (mobile phones, tablet computers, etc.), the pursuit of camera effects on mobile terminals is getting higher and higher, and more and more mobile terminals use two cameras to cooperate with each other. Depth of field, wide-angle telephoto, 360-degree panoramic shooting, etc., these functions are a great test for the accuracy of the camera body. The current conventional practice of dual cameras is that the module factory uses a professional jig to calibrate the optical axes of the two cameras, and then fixes the two cameras together with the decorative pieces on the steel sheet by dispensing, and then Fix the steel sheet on the mobile terminal to improve the accuracy of the camera. However, the problem caused by this is that the camera will be deformed after being fixed by the steel sheet and then installed in the mobile terminal, resulting in poor camera module camera effect.

That is to say, in the prior art, the distance between the cameras in the mobile terminal will change, resulting in poor camera performance of the multi-camera module.

technical problem

Embodiments of the present application provide a multi-camera module and a mobile terminal, which can maintain the relative position between multiple cameras unchanged, thereby ensuring the camera effect of the multi-camera module.

Technical solution

In a first aspect, an embodiment of the present application provides a multi-camera module, including at least two cameras and a front shell mold insert, a main board, and a camera decoration part that are sequentially arranged along the optical axis of at least two cameras; the main board is fixed at On the front shell mold insert, the camera decoration is fixed on the main board, and at least two cameras penetrate the main board; the first ends of the at least two cameras are respectively embedded in the camera decoration to keep the distance between the at least two cameras unchanged, Wherein, the first ends of the at least two cameras are the light entrance ends of the at least two cameras; the second ends of the at least two cameras respectively abut the surface of the front shell mold insert, the front shell mold insert and the camera trim The at least two cameras are pressed against the at least two cameras from both ends of the at least two cameras to restrict the movement of the at least two cameras along the direction of the optical axis.

Among them, the camera trim is provided with at least two through holes along the optical axis of at least two cameras. The through holes correspond to the camera one by one. The diameter of the through hole near the front shell mold insert is larger than the through hole away from the front. The aperture on the side of the insert in the shell mold to resist the camera.

Wherein, the diameter of the camera is equal to the aperture of the through hole away from the front shell mold insert, and the larger aperture of the camera and the through hole are engaged to ensure that the camera and the camera decoration do not occur perpendicular to the camera light For the movement in the axis direction, the part with the smaller aperture diameter abuts the camera to limit the movement of the camera along the optical axis.

Among them, the number of cameras is two, which are the main camera and the sub camera respectively. The length of the main camera along its optical axis is greater than the length of the sub camera along its optical axis. The front shell mold insert is provided on the side close to the sub camera Bosses, the front shell mold inserts abut the second end of the sub-camera through the boss, so that the first end of the main camera and the sub-camera are flush.

Wherein, the pixels of the main camera are higher than or equal to the pixels of the sub camera.

Among them, the camera decoration is directly fixed on the main board by screwing or bonding.

Among them, the camera decoration is directly fixed on the main board by means of dispensing glue or adhesive glue.

Wherein, the camera decoration parts are respectively provided with screw holes at opposite corners, and the main board is also provided with screw holes at positions corresponding to the screw holes on the camera decoration parts. The screw penetrates the threaded hole of the camera decoration and is screwed with the threaded hole on the motherboard to fix the camera decoration on the motherboard.

Wherein, the material of the front shell mold insert is any one of magnesium alloy die-casting or aluminum alloy die-casting, and the front shell mold insert is any one of cuboid or cylinder.

Wherein, the flatness of the plane at which the second ends of the at least two cameras and the front shell mold insert abut against each other does not exceed 0.1 mm.

Among them, the material of the camera decoration is any one of amorphous thermoplastic or aluminum alloy.

Among them, a camera lens is provided on the side of the camera trim away from the front shell mold insert to protect the camera, and the edge of the camera lens is fixed on the camera trim by clamping or bonding.

Wherein, the multi-camera module further includes a housing, the housing is disposed around the main board, and one side of the housing is connected to the front shell mold insert by screwing or bonding, and the other of the housing One side is connected with the camera decoration by screwing or bonding to protect the main board and the devices on the main board.

In a second aspect, an embodiment of the present application further provides a mobile terminal. The mobile terminal includes a display screen and a multi-camera module. The multi-camera module is fixed to the back of the display screen. The multi-camera module includes:

At least two cameras, a front shell mold insert, a main board, and a camera decoration part that are sequentially provided along the optical axis of the at least two cameras;

The main board is fixed on the front shell mold insert, the camera decoration is fixed on the main board, and the at least two cameras penetrate the main board;

The first ends of the at least two cameras are respectively embedded in the camera decoration to keep the distance between the at least two cameras unchanged, wherein the first ends of the at least two cameras are the at least two cameras The light end of the camera;

The second ends of the at least two cameras abut the surface of the front shell mold insert, respectively, and the front shell mold insert and the camera trim piece abut against both ends of the at least two cameras The at least two cameras limit the movement of the at least two cameras along the direction of the optical axis, wherein the main board is fixed on the front shell mold insert by screwing or bonding, and is electrically connected to the at least two cameras Connect to get the image captured by the camera.

Wherein, the camera decoration piece is provided with at least two through holes provided along the optical axis of the at least two cameras, the through holes correspond to the camera one by one, and the through holes are close to the front shell mold The aperture on the side of the inner insert is larger than the aperture on the side of the through hole away from the inner insert of the front shell mold to resist the camera.

Wherein, the number of the cameras is two, which are respectively a main camera and a sub-camera, the length of the main camera along its optical axis is greater than the length of the sub-camera along its optical axis, and the front shell mold insert is close to A boss is provided on one side of the sub-camera, and the front shell mold insert abuts the second end of the sub-camera through the boss, so that the main camera and the sub-camera One end is flush.

Wherein, the camera decoration is directly fixed on the main board by screwing or bonding.

Wherein, the camera decoration piece is directly fixed on the main board by means of adhesive bonding or adhesive bonding.

Beneficial effect

The present application provides a multi-camera module, which includes at least two cameras, a front shell mold insert, a main board, and a camera trim part that are sequentially disposed along the optical axis of at least two cameras; the main board is fixed to the front shell mold insert The camera trim is fixed on the motherboard, and at least two cameras penetrate the motherboard. In this application, the first end of at least two cameras are respectively embedded in the camera decoration, which limits the proximity or distance between the cameras, and can keep the distance between the at least two cameras unchanged; through the front shell mold insert and the camera decoration The pressing of the piece along the two ends of the camera can limit the movement of at least two cameras along the direction of its optical axis, thereby ensuring that the relative position of the camera will not change, and thus ensuring the camera effect of the multi-camera module.

BRIEF DESCRIPTION

1 is a schematic diagram of the overall structure of a multi-camera module provided by an embodiment of the present application;

2 is a schematic cross-sectional structure diagram of a camera module provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present application.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

Please refer to FIGS. 1 and 2. FIG. 1 is a schematic diagram of an overall structure of a multi-camera module provided by an embodiment of the present application, and FIG. 2 is a schematic diagram of a cross-sectional structure of the camera module provided by an embodiment of the present application.

With reference to FIGS. 1 and 2, in this embodiment, the multi-camera module 10 includes at least two cameras and a front shell mold insert 14, a main board 13, and a camera decoration 12 that are sequentially arranged along the optical axis of at least two cameras . The main board 13 is fixed on the front shell mold insert 14, the camera decoration 12 is fixed on the main board 13, and at least two cameras pass through the main board 13. Specifically, the main board is fixed on the front shell mold insert 14 by screwing or bonding. The first ends of the at least two cameras are respectively embedded in the camera decoration 12 to keep the distance between the at least two cameras unchanged, wherein the first ends of the at least two cameras are the light input ends of the at least two cameras. The second ends of the at least two cameras abut the surface of the front shell mold insert 14 respectively. The front shell mold insert 14 and the camera trim 12 abut at least two cameras from both ends of the at least two cameras to limit at least two cameras The movement of the two cameras along their optical axis. Further, the main board 13 is electrically connected to at least two cameras to obtain images obtained by the cameras. The first ends of the at least two cameras are embedded in the camera decoration 12 respectively, which can keep the distance between the at least two cameras unchanged. By pressing the front shell mold insert 14 and the camera decoration 12 along both ends of the camera, it can be restricted The movement of at least two cameras along the direction of their optical axis ensures that the relative positions of the two cameras will not change, thereby ensuring the camera effect of the multi-camera module 10.

In some embodiments, the camera decoration 12 is provided with at least two through holes 121 provided along the optical axis of at least two cameras. The through holes 121 correspond to the camera one by one, and the through holes 121 are close to the front shell mold insert 14 The hole diameter on one side is larger than the hole diameter on the side of the through hole 121 away from the front shell mold insert 14 to resist the camera.

Further, the diameter of the camera is equal to the aperture of the through hole 121 away from the front shell insert 14 side, and the larger aperture of the camera and the through hole 121 is engaged to ensure that the camera and the camera decoration 12 do not occur perpendicular to the optical axis of the camera Direction of movement. The portion of the through hole 121 with a small diameter abuts the camera to limit the movement of the camera along the optical axis. The arrangement of the through hole 121 on the camera ensures that the relative position of the camera does not change, and can also ensure the normal use of the camera light.

In some embodiments, the number of cameras is two, which are the main camera 111 and the sub camera 112 respectively. The length of the main camera 111 along its optical axis is greater than the length of the sub camera 112 along its optical axis. The front shell mold insert 14 is provided with a boss 141 on the side close to the sub camera 112, and the front shell mold insert 14 passes through the protrusion The stage 141 abuts the second end of the sub camera 112 so that the first end of the main camera 111 and the sub camera 112 are flush. In other embodiments, the number of cameras may also be 3, 4 or more, which can be set according to specific circumstances, which is not limited in this application.

Further, the pixels of the main camera 111 are higher than the pixels of the sub camera 112. Since the sub camera 112 assists the main camera 111 during shooting, the pixels of the sub camera 112 are lower than the pixels of the main camera 111, which is sufficient to meet user needs, and can avoid the waste of resources caused by the high pixels of both cameras. In other embodiments, the pixels of the main camera 111 may also be equal to the pixels of the sub-camera 112, which is not limited in this application.

Further, the combination of the main camera 111 and the sub-camera 112 may be any of a combination of a color camera and a color camera, a combination of a color camera and a black-and-white camera, a combination of a wide-angle camera and a telephoto camera, and a combination of a color camera and a depth camera. Among them, the combination of color camera and color camera can calculate the depth of field to achieve background blur and refocus; the combination of color camera and black and white camera can improve the image quality of dark or night mobile phones; the combination of wide-angle camera and telephoto camera can achieve optical zoom; color The combination of camera and depth camera can realize three-dimensional reconstruction. The combination of the main camera 111 and the sub-camera 112 is selected according to specific circumstances, and this application does not limit it.

In some embodiments, the camera decoration 12 is directly fixed on the main board 13 by screwing or bonding. The traditional process is to fix the camera and the camera decoration 12 to the steel sheet, and then fix the steel sheet to the mobile terminal. The camera decoration 12 only plays a decorative role, and the steel sheet plays a positioning role; while the camera decoration 12 of this application is screwed It is directly fixed on the main board 13 by way of connection or bonding. The camera decoration 12 plays the role of decoration and positioning at the same time. It can save the steel sheet for positioning the camera, simplifying the process of the multi-camera module 10, and adding Space for the motherboard 13. In addition, the multiple assembly of the traditional process will lead to the accumulation of tolerances, resulting in the final tolerance between the cameras is too large; and this application is equivalent to directly fix the camera directly on the main board 13, the tolerance is small, thus avoiding the tolerance between the cameras Too large causes the problem of poor camera performance.

In some embodiments, the camera decoration 12 is directly fixed on the main board 13 by means of adhesive bonding or adhesive bonding.

In some embodiments, the diagonal holes of the camera trim 12 are respectively provided with screw holes, and the main board 13 is also provided with screw holes at positions corresponding to the screw holes of the camera trim 12. The screw 122 penetrates the screw hole on the camera decoration 12 and is screwed with the screw hole on the main board 13 to fix the camera decoration 12 on the main board 13. In other embodiments, threaded holes may be provided at the four corners of the camera trim 12 or at other positions, as long as the screw 122 can fix the camera trim 12 to the motherboard through the threaded holes on the camera trim 12 Only 13 is required, and this application does not limit it.

In some embodiments, the material of the front shell mold insert 14 is either a magnesium alloy die casting or an aluminum alloy die casting, and the front shell mold insert 14 is either a rectangular parallelepiped or a cylinder. The material strength of the magnesium alloy die-casting and aluminum alloy die-casting is large, which can ensure the flatness of the contact surface of the front shell mold insert 14 with the main camera 111 and the sub camera 112, thereby ensuring that the main camera 111 and the sub camera 112 will not shake , Thereby ensuring that the relative position between the main camera 111 and the sub camera 112 is unchanged.

In some embodiments, the flatness of the plane where the second ends of the main camera 111 and the sub-camera 112 abut against the front shell mold insert 14 does not exceed 0.1 mm. Since the flatness of the plane at which the second ends of the at least two cameras and the front shell mold insert 14 abut against each other does not exceed 0.1 mm, it can be ensured that the front shell mold insert 14 can tightly abut the camera to ensure the camera No shaking occurs, which ensures that the distance between the cameras remains unchanged, thereby ensuring the camera effect of the multi-camera module 10.

In some embodiments, the material of the camera decoration 12 is any one of amorphous thermoplastic or aluminum alloy.

In some embodiments, a camera lens 15 is provided on the side of the camera trim 12 away from the front shell mold insert 14 to protect the camera, and the edge of the camera lens 15 is fixed to the camera trim 12 by snapping or bonding The side away from the shell mold insert 14.

Further, the multi-camera module 10 further includes a housing 16, the housing 16 is disposed around the main board 13, and one side of the housing 16 and the front shell mold insert 14 are connected together by screwing or bonding, and the other of the housing 16 One side is connected with the camera decoration 12 by screwing or bonding to protect the main board 13 and the devices on the main board 13.

Referring to FIG. 3, FIG. 3 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present application.

As shown in FIG. 3, in this embodiment, the mobile terminal 28 includes a display screen 27 and a multi-camera module 20. The multi-camera module 20 includes a main camera 211, a sub-camera 212, a camera trim 22, a main board 23, a front shell mold insert 24, a camera lens 25, and a housing 26. The multi-camera module 20 is the same as the multi-camera module 10 in FIG. 1 and will not be repeated here. The multi-camera module 20 is fixed on the back of the display screen 27.

An embodiment of the present application further provides a mobile terminal, including a display screen and a multi-camera module. The multi-camera module is fixed on the back of the display screen. The multi-camera module includes:

In some embodiments, the display screen 27 includes a touch control panel 271 and a display panel 272. The display screen 27 is electrically connected to the main board 23, and the user controls the multi-camera module 20 to capture images through the touch control panel 271 and the main board 23, and displays them through the display panel 272. The touch control panel 271 and the display panel 272 are connected by bonding or snapping. The display panel 272 is located between the touch control panel 271 and the multi-camera module 20. The edge of the touch control panel 271 is fixed to the casing 26 by screwing or bonding, thereby fixing the display screen 27 and the multi-camera module 20 together.

The present application provides a mobile terminal, including at least two cameras, a front shell mold insert, a main board, and a camera decoration part that are sequentially arranged along the optical axis of at least two cameras; the main board is fixed on the front shell mold insert, The camera decoration is fixed on the motherboard, and at least two cameras penetrate the motherboard. In this application, the first end of at least two cameras are respectively embedded in the camera decoration, which limits the proximity or distance between the cameras, and can keep the distance between the at least two cameras unchanged; through the front shell mold insert and the camera decoration The pressing of the piece along the two ends of the camera can limit the movement of at least two cameras along the direction of its optical axis, thereby ensuring that the relative position of the camera will not change, and thus ensuring the camera effect of the multi-camera module.

The above are only the embodiments of the present application, and therefore do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the description and drawings of this application, or directly or indirectly used in other related technical fields, The same reason is included in the scope of patent protection of this application.

Claims

A multi-camera module, which includes at least two cameras, a front shell mold insert, a main board, and a camera decoration part that are sequentially arranged along the optical axis of the at least two cameras;

The main board is fixed on the front shell mold insert, the camera decoration is fixed on the main board, and the at least two cameras penetrate the main board;

The first ends of the at least two cameras are respectively embedded in the camera decoration to keep the distance between the at least two cameras unchanged, wherein the first ends of the at least two cameras are the at least two cameras The light end of the camera;

The second ends of the at least two cameras abut the surface of the front shell mold insert, respectively, and the front shell mold insert and the camera trim piece abut against both ends of the at least two cameras The at least two cameras to limit the movement of the at least two cameras along the direction of the optical axis.
The multi-camera module according to claim 1, wherein the camera trim is provided with at least two through holes provided along the optical axis of the at least two cameras, and the through holes are one-to-one with the cameras Correspondingly, the aperture of the through hole close to the front shell mold insert is larger than the aperture of the through hole farther from the front shell mold insert to resist the camera.
The multi-camera module according to claim 2, wherein the diameter of the camera is equal to the aperture of the through hole away from the front shell mold insert, and the camera and the portion with a larger aperture of the through hole are snapped in Ensure that the camera and the camera trim do not move perpendicular to the direction of the optical axis of the camera. The part with the smaller hole diameter abuts the camera to limit the movement of the camera along the optical axis.
The multi-camera module according to claim 2, wherein the number of the cameras is two, respectively a main camera and a sub camera, the length of the main camera along its optical axis is greater than that of the sub camera along its optical axis Length, the front shell mold insert is provided with a boss on the side close to the secondary camera, and the front shell mold insert is pressed against the second end of the secondary camera through the boss to The first ends of the main camera and the sub-camera are flush.
The multi-camera module according to claim 4, wherein the pixels of the main camera are higher than or equal to the pixels of the sub-camera.
The multi-camera module according to claim 1, wherein the camera trim is directly fixed on the main board by screwing or bonding.
The multi-camera module according to claim 6, wherein the camera decoration is directly fixed on the main board by means of adhesive bonding or adhesive bonding.
The multi-camera module according to claim 7, wherein the camera decoration parts are respectively provided with screw holes at opposite corners, and the main board is also provided with screw holes at positions corresponding to the screw holes on the camera decoration parts. The screw penetrates the threaded hole of the camera decoration and is screwed with the threaded hole on the motherboard to fix the camera decoration on the motherboard.
The multi-camera module according to claim 1, wherein the material of the front shell mold insert is either magnesium alloy die casting or aluminum alloy die casting, and the front shell mold insert is a rectangular parallelepiped Or any of the cylinders.
The multi-camera module according to claim 1, wherein the flatness of the plane at which the second ends of the at least two cameras and the front shell mold insert abut against each other does not exceed 0.1 mm.
The multi-camera module according to claim 1, wherein the material of the camera decoration is any one of amorphous thermoplastics or aluminum alloy.
The multi-camera module according to claim 1, wherein a camera lens is provided on a side of the camera trim away from the front shell mold insert to protect the camera, and the edge of the camera lens passes through the card It is fixed on the camera decoration by means of connection or bonding.
The multi-camera module according to claim 1, wherein the multi-camera module further includes a housing, the housing is disposed around the main board, and one side of the housing is screwed to the front shell mold insert Connected together by means of adhesive or bonding, and the other side of the housing is connected to the camera trim by screwing or bonding to protect the motherboard and the components on the motherboard.
A mobile terminal, wherein the mobile terminal includes a display screen and a multi-camera module, the multi-camera module is fixed on the back of the display screen, and the multi-camera module includes:

At least two cameras, a front shell mold insert, a main board, and a camera decoration part that are sequentially provided along the optical axis of the at least two cameras;

The main board is fixed on the front shell mold insert, the camera decoration is fixed on the main board, and the at least two cameras penetrate the main board;

The first ends of the at least two cameras are respectively embedded in the camera decoration to keep the distance between the at least two cameras unchanged, wherein the first ends of the at least two cameras are the at least two cameras The light end of the camera;

The second ends of the at least two cameras abut the surface of the front shell mold insert, respectively, and the front shell mold insert and the camera trim piece abut against both ends of the at least two cameras The at least two cameras limit the movement of the at least two cameras along the direction of the optical axis, wherein the main board is fixed on the front shell mold insert by screwing or bonding, and is electrically connected to at least two cameras Connect to get the image captured by the camera.
The mobile terminal according to claim 14, wherein the camera decoration member is provided with at least two through holes provided along the optical axis of the at least two cameras, and the through holes correspond to the cameras one by one, The diameter of the through hole close to the front shell mold insert is larger than the diameter of the through hole farther from the front shell mold insert to oppose the camera.
The mobile terminal according to claim 15, wherein the diameter of the camera is equal to the aperture of the through hole away from the insert of the front case mold, and the camera is engaged with a portion with a larger aperture of the through hole to ensure the camera No movement perpendicular to the direction of the optical axis of the camera occurs with the camera trim, and the portion with the smaller hole diameter abuts the camera to limit the movement of the camera along the optical axis.
The mobile terminal according to claim 15, wherein the number of the cameras is two, respectively a main camera and a sub camera, the length of the main camera along its optical axis is greater than the length of the sub camera along its optical axis , The front shell mold insert is provided with a boss on the side close to the sub-camera, the front shell mold insert is pressed against the second end of the sub-camera through the boss, so that The first end of the main camera and the sub-camera are flush.
The mobile terminal of claim 17, wherein the pixels of the main camera are higher than or equal to the pixels of the sub camera.
The mobile terminal according to claim 14, wherein the camera decoration is directly fixed on the main board by screwing or bonding.
The mobile terminal according to claim 19, wherein the camera decoration is directly fixed on the main board by means of adhesive bonding or adhesive bonding.