CN115118845B - Camera module, assembling method thereof and electronic equipment - Google Patents

Abstract

The application provides a camera module, an assembling method thereof and electronic equipment, wherein the camera module is provided with a fixed bracket in a shell, the fixed bracket comprises a first fixed part and a second fixed part, the first fixed part is sleeved outside a lens, one end of the second fixed part is connected to one side surface of the first fixed part facing the bottom of the shell, and the other end of the second fixed part is supported at the bottom of the shell; at least one group of magnetic components are fixed on the inner edge of the first fixing part, one part of the magnetic components faces the first driving component, the other part of the magnetic components faces the second driving component, the magnetic components can drive the first driving component and the second driving component to move, and the first driving component and the second driving component respectively drive the image sensor component and the lens to move; therefore, the structure of the camera module is simplified, and the assembly difficulty of the camera module is reduced.

Description

Camera module, assembling method thereof and electronic equipment

The present application claims priority from the chinese patent application filed at 2021, 03, 19, with application number 202110295108.8, entitled "camera module and electronic device", the entire or partial contents of which are incorporated herein by reference.

Technical Field

The application relates to the technical field of mobile terminals, in particular to a camera module, an assembly method thereof and electronic equipment.

Background

In life, people often use electronic devices (such as smart phones, tablet computers and the like) to take pictures, and the quality of taking pictures of the electronic devices has become one of important standards for measuring the performance of terminal devices.

Users typically take pictures in a hand-held manner when using a portable electronic device, such as a cell phone. Therefore, there often occurs a problem that a photographed image is blurred due to hand shake. In order to solve the problem, some electronic devices have an optical anti-shake function, and the amount of movement of the hand shake is offset by moving the lens or the image sensor of the camera module, so as to improve the quality of the photographed image.

However, the current mainstream camera modules have more parts, complex assembly process and difficult performance test.

Disclosure of Invention

The application provides a camera module, an assembly method thereof and electronic equipment, and the camera module is simple in structure, easy to assemble and high in reliability.

In a first aspect, the present application provides a camera module, including: the lens comprises a shell, a fixed support, a lens, a first driving assembly, a second driving assembly and an image sensor assembly; a mounting hole is formed in one side surface of the shell, the lens is partially accommodated in the shell through the mounting hole, the fixing bracket is arranged in the shell, and the image sensor assembly is positioned at the bottom of the shell; the fixed bracket comprises a first fixed part and a second fixed part, the first fixed part is sleeved outside the lens, one end of the second fixed part is connected to one side of the first fixed part facing the bottom of the shell, the other end of the second fixed part is supported on the inner bottom wall of the shell, and at least one group of magnetic components are fixed at the inner edge of the first fixed part;

The first driving component is positioned on one side of the first fixing part facing the bottom of the shell, one side surface of the first driving component faces one part of the magnetic component, the other side surface of the first driving component is connected with the image sensor component, and the magnetic component is used for driving the first driving component to move; the second driving component is sleeved on the outer wall of the lens, faces the other part of the magnetic component, and the magnetic component is used for driving the second driving component to move.

According to the camera shooting module, the fixing support is arranged in the shell and comprises the first fixing portion and the second fixing portion, the first fixing portion is sleeved outside the lens, one end of the second fixing portion is connected to one side, facing the bottom of the shell, of the first fixing portion, and the other end of the second fixing portion is supported at the bottom of the shell; the magnetic assembly is arranged on the inner edge of the first fixing part, the part, facing the first driving assembly, of the magnetic assembly is used for driving the first driving assembly to move, the part, facing the second driving assembly, of the magnetic assembly is used for driving the second driving assembly to move, and the image sensor assembly and the lens are respectively driven to move through the first driving assembly and the second driving assembly. Through the magnetic component that sets up on the fixed bolster, realize the drive to first drive assembly and second drive assembly, simplified the structure of module of making a video recording, the equipment process of module of making a video recording is simple, and easily tests the performance of module of making a video recording, has improved the reliability of module of making a video recording.

In one possible embodiment, the second fixing portion includes a plurality of supporting portions disposed at intervals, and the first driving assembly and the image sensor assembly are located in a space surrounded by the plurality of supporting portions.

In one possible embodiment, at least two sets of magnetic components are fixed to the inner edge of the first fixing portion, and the two sets of magnetic components are respectively disposed on two opposite sides of the first fixing portion.

Through setting up two sets of magnetic assembly relatively at least, drive first drive assembly and second drive assembly through the magnetic assembly of both sides and remove, make the removal of image sensor subassembly and camera lens more steady.

In one possible embodiment, the magnetic assembly includes a first magnetic member and a second magnetic member, the first magnetic member being oriented toward and driving the first drive assembly to move, the second magnetic member being oriented toward and driving the second drive assembly to move.

Through setting up first magnetic part and second magnetic part, rely on the magnetic force that produces between first magnetic part and the first drive assembly to drive first drive assembly and remove, rely on the magnetic force that produces between second magnetic part and the second drive assembly to drive the second drive assembly and remove.

In one possible embodiment, the magnetic assembly further includes a magnetic conductive member fixed on the first fixing portion, the magnetic conductive member including a first magnetic conductive portion and a second magnetic conductive portion; the first magnetic conduction part faces the first driving assembly, and the surface of the first magnetic piece is attached to the surface of the first magnetic conduction part; the second magnetic conduction part faces the second driving assembly, and the surface of the second magnetic piece is attached to the surface of the second magnetic conduction part;

The first magnetic part and the second magnetic part have opposite magnetic properties, and the first magnetic part have opposite magnetic properties, and the second magnetic part have opposite magnetic properties.

The first magnetic piece and the second magnetic piece are fixed on the first fixing part through the magnetic conduction piece; the first magnetic part is fixed on the surface of the first magnetic part by virtue of magnetic attraction between the first magnetic part and the first magnetic part; the second magnetic part is fixed through the second magnetic conduction part of the magnetic conduction part, and the second magnetic conduction part adsorbs the second magnetic part on the surface by means of magnetic attraction between the second magnetic part and the second magnetic part.

In one possible embodiment, the first driving assembly comprises a support plate and at least one first driving coil, wherein the first driving coil is arranged on the surface of one side of the support plate facing the magnetic assembly, and the first driving coil is arranged opposite to the magnetic assembly.

The first driving coil is fixed through setting up the backup pad, through making first driving coil towards magnetic component, first driving coil and magnetic component produce magnetic force, through adjusting current size and the direction in the first driving coil, change magnetic force size and the direction between first driving coil and the magnetic component, realize the removal of first driving component.

In one possible implementation manner, the first fixing portion is provided with at least one first limiting portion, one surface of the supporting plate facing the first fixing portion is provided with at least one second limiting portion, the second limiting portion is opposite to the first limiting portion, a ball is arranged between the first limiting portion and the second limiting portion, and the first limiting portion and the second limiting portion are in contact through the ball.

Through setting up first spacing portion on first fixed part, set up the second spacing portion relative with first spacing portion in the backup pad, through setting up the ball between first spacing portion and second spacing portion, make rolling contact between first fixed part and the backup pad to reduce the resistance that the backup pad removed.

In one possible implementation manner, the first fixing part is provided with at least two first limiting parts, and the two first limiting parts are oppositely arranged; at least two second limiting parts are arranged on the supporting plate, and each second limiting part corresponds to each first limiting part.

In one possible embodiment, one of the first limiting portion and the second limiting portion is provided with a limiting groove, and the ball moves in the limiting groove.

Through set up spacing recess on first spacing portion or second spacing portion, with the ball restriction in spacing recess, prevent that the ball from coming off between first spacing portion and the second spacing portion, guarantee backup pad and first fixed part contact stability.

In one possible embodiment, a gap is provided between the first and second stop portions.

Through making the diameter of ball be greater than the degree of depth of spacing recess, reserve out the clearance between first spacing portion and second spacing portion, avoid first spacing portion and the contact of second spacing portion, prevent that first spacing portion from causing the hindrance to the removal of backup pad.

In one possible embodiment, the support plate is a magnetically permeable plate.

The backup pad is towards the first magnetism spare on the first fixed part, through making the backup pad have magnetism, produces magnetic attraction between first magnetism spare and the backup pad, can guarantee that first drive assembly is contacted with first fixed part all the time, avoids first drive assembly pine to take off.

In one possible embodiment, the second driving assembly comprises a supporting seat and a second driving coil, wherein the supporting seat is sleeved on the outer wall of the lens, and the second driving coil is sleeved on the outer wall of the supporting seat.

Magnetic force is generated between the second driving coil and the second magnetic piece, the second driving coil is driven to move by changing the magnitude and the direction of current in the second driving coil, and the second driving coil is fixed on the outer wall of the lens through the supporting seat, so that the second driving coil drives the lens to move.

In one possible embodiment, the image sensor assembly includes an image sensor having a space between a heat dissipating surface of the image sensor and an inner bottom wall of the housing, the space being filled with a heat transfer fluid.

The heat conduction liquid is filled in the gap between the image sensor and the inner bottom wall of the shell, the heat dissipation surface of the image sensor is in contact with the heat conduction liquid, and the heat dissipation effect of the heat conduction liquid is utilized to dissipate heat of the image sensor, so that the heat dissipation efficiency of the image sensor is improved.

In one possible embodiment, an annular sealing plate is attached to the inner bottom wall of the housing, and the heat transfer fluid is located in the area enclosed by the annular sealing plate.

The annular sealing plate is used for sealing the heat conduction liquid, so that a coverage area of the heat conduction liquid is limited, and the area where the heat conduction liquid is located corresponds to the radiating surface of the image sensor.

In one possible embodiment, the annular sealing plate has a gap between it and the image sensor.

The heat conduction liquid absorbs the heat of the image sensor to generate expansion phenomenon, the heat conduction liquid overflows outwards, and a gap is reserved between the surface of the annular sealing plate and the image sensor, so that the gap can accommodate the overflowed heat conduction liquid, and a certain flowing space is reserved for the heat conduction liquid.

In one possible implementation manner, a plurality of sealing holes are formed on the annular sealing plate at intervals; alternatively, the surface of the annular sealing plate is a corrugated surface with uneven surface.

The overflowed heat conduction liquid is stored through the sealing hole on the annular sealing plate, and the overflowed heat conduction liquid is prevented from overflowing out of the annular sealing plate due to the surface tension action of the heat conduction liquid in the gap between the annular sealing plate and the image sensor; overflowing heat conduction liquid is stored through the concave area on the corrugated surface of the annular sealing plate, and is prevented from overflowing out of the annular sealing plate due to the surface tension effect of the heat conduction liquid in the gap between the top of the convex area of the corrugated surface and the image sensor.

In one possible embodiment, a plurality of strip-shaped grooves are arranged on the annular sealing plate at intervals, and the strip-shaped grooves extend along the contour line direction of the annular sealing plate; wherein, be provided with the multirow bar groove from the inner edge of annular closing plate to the outer fringe, the bar groove that is located different rows staggers the setting.

The strip-shaped grooves are formed in the sealing plate at intervals and extend along the outline direction of the sealing plate, and can store overflowed heat conduction liquid, so that the heat conduction liquid is prevented from overflowing out of the annular sealing plate; in addition, the strip-shaped grooves arranged at intervals have little influence on the strength of the annular sealing plate; and, through staggering the bar groove setting of different rows, can prevent that the heat conduction liquid from continuing to overflow after crossing the bar groove.

In one possible embodiment, the image sensor assembly further comprises a flexible electrical connector having one end connected to the image sensor and the other end for connection to an external circuit.

In one possible embodiment, the flexible electrical connection unit includes a connection part, a movable cantilever, and a fixing part, the connection part is connected with the image sensor, the fixing part is connected with an external circuit, and the movable cantilever is located between the connection part and the fixing part;

wherein the movable cantilever surrounds the image sensor at least half a turn.

By arranging the movable cantilever, the image sensor moves to drive the movable cantilever to deform and move, so that the displacement of the image sensor is prevented from being limited by the flexible electric connecting piece; the movable cantilever at least comprises two parts extending along different directions by enabling the movable cantilever to surround the image sensor at least for half a circle, and the movable cantilever can ensure that the image sensor moves to any direction in the plane where the movable cantilever is positioned.

In a second aspect, the present application provides an assembling method of a camera module, for assembling the camera module as described in any one of the above, the assembling method comprising:

providing a lens, and sleeving a second driving assembly on the outer wall of the lens;

Providing a fixed bracket; the fixing support comprises a first fixing part and a second fixing part, and the second fixing part is connected to the bottom surface of the first fixing part;

fixing at least one group of magnetic components on the inner edge of the first fixing part;

sleeving a fixed bracket fixed with a magnetic component outside the lens; wherein the second drive assembly faces a portion of the magnetic assembly;

providing a first driving assembly, and connecting one side surface of the first driving assembly to the fixed bracket; wherein the first drive assembly faces another portion of the magnetic assembly;

providing an image sensor assembly and fixing the image sensor assembly to the other side surface of the first driving assembly;

a shell is sleeved outside the fixed support.

In a third aspect, the present application provides an electronic device comprising at least one camera module as defined in any one of the above.

The electronic equipment comprises at least one camera module, wherein a fixing support is arranged in a shell, the fixing support comprises a first fixing part and a second fixing part, the first fixing part is sleeved outside a lens, one end of the second fixing part is connected to one side, facing the bottom of the shell, of the first fixing part, and the other end of the second fixing part is supported at the bottom of the shell; the inner edge of the first fixing part is provided with a magnetic component, the part of the magnetic component, which faces the first driving component, is used for driving the first driving component to move, the part of the magnetic component, which faces the second driving component, is used for driving the second driving component to move, and the image sensor component and the lens are respectively driven to move through the first driving component and the second driving component. Through the magnetic component that sets up on the fixed bolster, realize the drive to first drive assembly and second drive assembly, simplified the structure of module of making a video recording, the equipment process of module of making a video recording is simple, and easily tests the performance of module of making a video recording, has improved the reliability of module of making a video recording.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

FIG. 2 is a partial exploded view of FIG. 1;

fig. 3 is a schematic structural diagram of a camera module provided in an embodiment of the present application;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a front view of FIG. 3;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

fig. 7 is a schematic diagram of an internal structure of a camera module provided in an embodiment of the present application;

FIG. 8 is an exploded view of FIG. 7;

FIG. 9 is a schematic view of the structure of FIG. 7 with the fixing bracket removed;

FIG. 10 is a schematic structural diagram of a magnetic assembly according to an embodiment of the present disclosure;

fig. 11 is a schematic structural view of a fixing bracket according to an embodiment of the present application;

fig. 12 is a front view of fig. 7;

FIG. 13 is a cross-sectional view of B-B of FIG. 12;

FIG. 14 is an exploded view of an image sensor contact pad provided in an embodiment of the present application;

FIG. 15 is a schematic view of an annular seal plate according to an embodiment of the present disclosure;

fig. 16 is a schematic structural diagram of an image sensor assembly according to an embodiment of the present application.

Reference numerals illustrate:

100-an electronic device;

1-a camera module; 2-a housing; 21-a rear cover; 211-light holes; 22-middle frame; 3-a display panel; 4-a circuit board;

11-a housing; 12-fixing a bracket; 13-lens; 14-a first drive assembly; 15-a second drive assembly; a 16-image sensor assembly; 17-magnetic assembly; 18-heat conducting liquid; 19-an annular sealing plate;

111-an outer frame; 112-a bottom plate; 121-a first fixing portion; 122-a second securing portion; 123-positioning plates; 141-a support plate; 142-a first drive coil; 151-supporting seats; 152-a second drive coil; 161-an image sensor; 162-flexible electrical connection; 163-a light-transmitting plate; 171-a first magnetic member; 172-a second magnetic member; 173-a magnetic conductive member; 191-sealing the hole; 192-bar grooves;

1111-mounting holes; 1211-a first stop; 1221-a support; 1411-a second limit; 1421-lightening holes; 1621-a connection; 1622-a movable cantilever; 1623-a mounting portion; 1731-a first magnetically permeable portion; 1732-a second magnetically permeable portion;

1211 a-a limit groove; 1211 b-balls.

Detailed Description

The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

With the continuous progress of technology, the shooting function has gradually become a basic equipment of mobile terminals such as mobile phones, tablet computers, notebook computers, personal digital assistants (Personal Digital Assistant, PDA), smart wearable devices, point of Sales (POS), and the like.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application; fig. 2 is a partial exploded view of fig. 1. Referring to fig. 1 and 2, a mobile phone is taken as an example, and an electronic device 100 of the present application will be described. It should be understood that the electronic device 100 of the present embodiment includes, but is not limited to, a mobile phone, and the electronic device 100 may also be a tablet computer, a notebook computer, a PDA, a smart wearable device, a POS or other mobile terminals.

Referring to fig. 1 and 2, the electronic apparatus 100 may include a housing 2, a display panel 3, an image capturing module 1, and a circuit board 4. The housing 2 encloses the back and the side of the electronic device 100, the display panel 3 is mounted on the housing 2, the display panel 3 and the housing 2 enclose a containing space of the electronic device 100 together, and the camera module 1 and the circuit board 4 are mounted in the containing space. In addition, a microphone, a loudspeaker, a battery or other devices can be arranged in the accommodating space.

Referring to fig. 1, the camera module 1 is shown in a top, near-edge region of the housing 2. It is understood that the position of the camera module 1 is not limited to the position shown in fig. 1.

Referring to fig. 2, in some embodiments, the housing 2 may include a rear cover 21 and a middle frame 22, where a light hole 211 is formed on the rear cover 21, the camera module 1 may be disposed on the middle frame 22, and the camera module 1 collects external ambient light through the light hole 211 on the rear cover 21. The light sensing surface of the camera module 1 and the light hole 211 are oppositely arranged, external ambient light passes through the light hole 211 and irradiates the light sensing surface, the light sensing surface is used for collecting external ambient light, and the camera module 1 is used for converting optical signals into electric signals so as to achieve the shooting function.

Fig. 2 shows that one camera module 1 is disposed in the electronic device 100, and it should be noted that, in practical applications, the number of camera modules 1 is not limited to one, and the number of camera modules 1 may be two or more. When the number of the camera modules 1 is plural, the plural camera modules 1 may be arranged arbitrarily in the X-Y plane. For example, the plurality of camera modules 1 are arranged in the X-axis direction, or the plurality of camera modules 1 are arranged in the Y-axis direction.

In addition, the image capturing module 1 includes, but is not limited to, an Auto Focus (AF) module, a Fix Focus (FF) module, a wide-angle image capturing module 1, a tele image capturing module 1, a color image capturing module 1, or a black-and-white image capturing module 1. The camera module 1 in the electronic apparatus 100 may include any one of the camera modules 1 described above, or may include two or more of the camera modules 1 described above. When the number of the camera modules 1 is two or more, the two or more camera modules 1 may be integrated into one camera module.

Referring to fig. 2, the camera module 1 may be electrically connected to a circuit board 4. The circuit board 4 is, for example, a motherboard in the electronic device 100, and as an embodiment, the camera module 1 may be electrically connected to the motherboard through an electrical connector. For example, the camera module 1 is provided with a female socket of an electrical connector, the main board is provided with a male socket of the electrical connector, and the electrical connection between the camera module 1 and the main board is realized by plugging the female socket into the male socket. The main board is provided with a processor, for example, and the processor controls the camera module 1 to shoot images. When a user inputs a shooting instruction, the processor receives the shooting instruction and controls the image pickup module 1 to shoot a shooting object according to the shooting instruction.

The following describes the image capturing module 1 in the electronic apparatus 100 according to the embodiment of the present application in detail.

Fig. 3 is a schematic structural diagram of a camera module provided in an embodiment of the present application; fig. 4 is an exploded view of fig. 3. Referring to fig. 3 and 4, the image pickup module 1 of the present embodiment includes a housing 11, a lens 13, and an image sensor assembly 16. A mounting hole 1111 is formed in one side surface of the housing 11, the housing 11 is hollow to form an accommodating space, the lens 13 is mounted on the housing 11 through the mounting hole 1111, and a part of the lens 13 is positioned in the accommodating space in the housing 11, and another part of the lens 13 is exposed outside the housing 11; the image sensor assembly 16 is provided within the housing 11, for example, the image sensor assembly 16 is provided at the bottom of the housing 11.

FIG. 5 is a front view of FIG. 3; fig. 6 is a cross-sectional view A-A of fig. 5. Referring to fig. 6, the light incident side of the lens 13 is located outside the housing 11, and the light emergent side of the lens 13 is located inside the housing 11. For example, the light incident side of the lens 13 corresponds to the light transmission hole 211 on the rear cover 21 of the electronic device 100, the external ambient light enters the lens 13 through the light transmission hole 211 by the light incident side of the lens 13, the lens 13 is formed by one or more stacked lenses, for example, the optical axis of the lens 13 passes through the center of the lens, the lens condenses the incident light, and the condensed light is emitted from the light emitting side of the lens 13.

The image sensor assembly 16 is located on the light exit path of the lens 13, for example, the image sensor assembly 16 is located on the light exit side of the lens 13, and the optical axis of the lens 13 passes through the center of the image sensor assembly 16. The light emitted from the lens 13 enters the image sensor assembly 16, and the emitted light signal is converted into an electric signal by the photoelectric conversion function of the image sensor assembly 16, so as to realize the imaging function of the camera module 1.

As shown in fig. 4, in this embodiment, the housing 11 may include an outer frame 111 and a bottom plate 112, and the outer frame 111 and the bottom plate 112 together enclose an accommodating space of the housing 11. By providing the detachable chassis 112, the lens 13, the image sensor assembly 16, and other devices of the image pickup module 1 are facilitated to be mounted in the housing 11. Wherein the mounting hole 1111 is provided on a side surface of the outer frame 111 opposite to the bottom plate 112, and the lens 13 is mounted in the housing 11 through the mounting hole 1111 in the optical axis direction thereof, and the image sensor assembly 16 is disposed close to the bottom plate 112.

With continued reference to fig. 6, the camera module 1 of the present embodiment further includes a first driving assembly 14 and a second driving assembly 15, where the first driving assembly 14 and the second driving assembly 15 are disposed in the housing 11. Specifically, the first driving component 14 is configured to drive the image sensor component 16 to move, for example, the first driving component 14 may drive the image sensor component 16 to translate or rotate in a plane where the first driving component itself is located in a direction perpendicular to an optical axis of the lens 13, so as to implement an anti-shake function of the camera module 1; the second driving component 15 is configured to drive the lens 13 to move, for example, the second driving component 15 may drive the lens 13 to move along its own optical axis direction, so as to implement the focusing function of the image capturing module 1.

In the camera module 1 of this embodiment, a fixing bracket 12 is further disposed in the housing 11, and the first driving component 14 and the second driving component 15 are movably mounted in the housing 11 through the fixing bracket 12. Fig. 7 is a schematic diagram of an internal structure of a camera module provided in an embodiment of the present application; fig. 8 is an exploded view of fig. 7. Referring to fig. 7 and 8, the fixing bracket 12 is sleeved outside the lens 13, the fixing bracket 12 includes a first fixing portion 121 and a second fixing portion 122, one end of the second fixing portion 122 is connected to a side of the first fixing portion 121 facing the bottom of the housing 11, and the other end of the second fixing portion 122 is supported on the inner bottom wall of the housing 11.

The first fixing portion 121 is, for example, an annular portion surrounding the outer side of the lens 13, and at least one set of magnetic assemblies 17 is fixed on an inner edge of the first fixing portion 121 near the outer side wall of the lens 13, where the magnetic assemblies 17 are used for driving the first driving assembly 14 and the second driving assembly 15 to move.

Specifically, as shown in fig. 6, the first driving assembly 14 is located at a side of the first fixing portion 121 facing the bottom of the housing 11, one side surface of the first driving assembly 14 faces a portion of the magnetic assembly 17, for example, a portion of the magnetic assembly 17 faces the bottom plate 112 of the housing 11, the first driving assembly 14 faces the portion of the magnetic assembly 17, and the other side surface of the first driving assembly 14 is connected to the image sensor assembly 16. The first driving assembly 14 may generate a magnetic field, and a magnetic force may be generated between the first driving assembly 14 and the magnetic assembly 17, and the first driving assembly 14 may be driven to move by varying the magnetic force between the first driving assembly 14 and the magnetic assembly 17.

The first driving component 14 and the magnetic component 17 may be disposed along an optical axis direction of the lens 13, where a plate surface of the first driving component 14 is perpendicular to the optical axis direction of the lens 13, and by changing a magnetic force between the first driving component 14 and the magnetic component 17, the first driving component 14 is driven to move along a direction perpendicular to the optical axis of the lens 13, for example, the first driving component 14 translates or rotates in a plane where the first driving component is located, so as to drive the image sensor component 16 to translate or rotate, compensate a displacement generated by hand shake of a user, prevent a blur phenomenon from occurring in a captured image, improve definition of the image, and improve quality of the image captured by the image capturing module 1.

The second driving component 15 is sleeved outside the lens 13, for example, the second driving component 15 is fixed on the outer wall of the lens 13, and the second driving component 15 can drive the lens 13 to move. The second driving component 15 is located inside the inner edge of the first fixing portion 121, the second driving component 15 faces another portion of the magnetic component 17, for example, another portion of the magnetic component 17 faces the outer wall of the lens 13, and the second driving component 15 faces the portion of the magnetic component 17.

As with the first drive assembly 14, the second drive assembly 15 may generate a magnetic field and a magnetic force may be generated between the second drive assembly 15 and the magnetic assembly 17, and the second drive assembly 15 may be driven to move by varying the magnetic force between the second drive assembly 15 and the magnetic assembly 17. The magnetic component 17 can drive the second driving component 15 to move along the optical axis direction of the lens 13, for example, and the second driving component 15 drives the lens 13 to move along the optical axis direction thereof so as to adjust the focal length of the lens 13.

The fixing bracket 12 is supported at the bottom of the housing 11 by a second fixing portion 122, and the second fixing portion 122 defines a space between the first fixing portion 121 and the inner bottom wall of the housing 11, which is used at least for accommodating the first driving assembly 14 and the image sensor assembly 16. Referring to fig. 8, in one embodiment, the second fixing portion 122 may include a plurality of supporting portions 1221 disposed at intervals, each supporting portion 1221 is connected to a side surface of the first fixing portion 121 facing the bottom of the housing 11, and the first driving unit 14 and the image sensor unit 16 are located in a space surrounded by each supporting portion 1221.

Referring to fig. 8, taking a rectangular outline of the outer edge of the first fixing portion 121 as an example, the supporting portion 1221 may include four supporting portions 1221 located at four corners of the first fixing portion 121, respectively.

The magnetic assembly 17 is fixedly connected to the inner edge of the first fixing portion 121, the first driving assembly 14 is movably connected to one side of the first fixing portion 121 facing the bottom of the housing 11, and the image sensor assembly 16 is fixedly connected to the first driving assembly 14. Taking the translation or rotation of the first driving component 14 in the plane of the first driving component 14 as an example, the image sensor component 16 translates or rotates along with the first driving component 14, a gap should be formed between the image sensor component 16 and the inner bottom wall of the housing 11, so as to avoid the movement of the image sensor component 16 from being blocked by the inner bottom wall of the housing 11.

Referring to fig. 8, in one embodiment, at least two sets of magnetic components 17 may be fixed to an inner edge of the first fixing portion 121, and two sets of magnetic components 17 may be disposed on opposite sides of the first fixing portion 121, for example, two sets of magnetic components 17. The driving force of the magnetic components 17 to the first driving component 14 and the second driving component 15 can be enhanced by driving the first driving component 14 and the second driving component 15 to move by the two groups of magnetic components 17; and the two sets of magnetic assemblies 17 are oppositely arranged, so that the first driving assembly 14 can be guaranteed to drive the image sensor assembly 16 to stably move, the second driving assembly 15 can be guaranteed to drive the lens 13 to stably move, and the image sensor 161 and the lens 13 are prevented from deflecting in the moving process.

In addition, the number of the magnetic components 17 fixed at the inner edge of the first fixing portion 121 may be four, six, eight, or the like, which is not limited in this embodiment. Wherein the magnetic assemblies 17 are disposed in pairs.

The housing 2 of the camera module 1 may be, for example, rectangular parallelepiped in shape, for example, the cross-sectional shape of the housing 2 in a direction perpendicular to the axial direction of the lens 13 is rectangular. The first fixing portion 121 of the fixing bracket 12 may have a rectangular frame structure, which is matched with the shape of the housing 11, and a portion of the lens 13 is penetrated in an area surrounded by the rectangular frame. Taking the example that two or four sets of magnetic assemblies 17 are arranged on the inner edge of the first fixing part 121 in a pairwise opposite manner, the outline of the inner edge of the rectangular frame can be rectangular; if the inner edge of the first fixing portion 121 is provided with six or eight sets of magnetic assemblies 17 opposite to each other, the outline of the inner edge of the rectangular frame may be hexagonal or octagonal, respectively.

In this embodiment, by arranging the magnetic component 17 on the fixing support 12, the magnetic component 17 is fixed on the inner edge of the first fixing portion 121, the first driving component 14 and the image sensor component 16 are located in the space surrounded by the second fixing portion 122, the magnetic component 17 drives the first driving component 14 to move towards the part of the first driving component 14, the second driving component 15 is sleeved on the outer wall of the lens 13, and the magnetic component 17 drives the second driving component 15 to move towards the part of the second driving component 15, so that the structure of the camera module 1 is simplified, and the assembly difficulty of the camera module 1 is reduced. In addition, the first driving component 14 and the second driving component 15 can be synchronously manufactured and tested for performance, so that the anti-shake performance of the camera module 1 can be accurately tested, and the reliability of the camera module 1 is improved.

FIG. 9 is a schematic view of the structure of FIG. 7 with the fixing bracket removed; fig. 10 is a schematic structural diagram of a magnetic component according to an embodiment of the present application. Referring to fig. 9 and 10, the magnetic assembly 17 includes a first magnetic member 171 and a second magnetic member 172, the first magnetic member 171 facing the first drive assembly 14 and the second magnetic member 172 facing the second drive assembly 15. The first magnetic member 171 is used for driving the first driving assembly 14 to move, and the second magnetic member 172 is used for driving the second driving assembly 15 to move.

Specifically, the first magnetic member 171 is fixed on a surface of the first fixing portion 121 facing the first driving assembly 14, and the first magnetic member 171 faces the surface of the first driving assembly 14; the second magnetic member 172 is fixed on a surface of the first fixing portion 121 facing the second driving assembly 15, and the second magnetic member 172 faces the surface of the second driving assembly 15. For example, the first magnetic member 171 may be disposed in a direction perpendicular to the optical axis of the lens 13, and the second magnetic member 172 may be disposed in the direction of the optical axis of the lens 13, with the first magnetic member 171 and the second magnetic member 172 being perpendicular to each other.

In this embodiment, as shown in fig. 8, the first driving assembly 14 includes a support plate 141 and a first driving coil 142, the plate surface of the support plate 141 may be perpendicular to the optical axis of the lens 13, the first driving coil 142 is disposed on the surface of the support plate 141 facing the first magnetic member 171, and the image sensor assembly 16 is connected to the other surface of the support plate 141. The first driving coils 142 are disposed corresponding to the first magnetic members 171, and the number of the first driving coils 142 may be one or more, which is matched with the number of the first magnetic members 171.

The first driving coil 142 is fixed to the support plate 141, for example, the first driving coil 142 may be adhered or welded to the support plate 141, or the first driving coil 142 may be fastened to the support plate 141 by a connection member such as a bolt or a screw. In addition, in order to reduce the weight of the first driving assembly 14, the first driving coil 142 may be provided with a weight reducing hole 1421, which facilitates the movement of the first driving assembly 14.

The first drive assembly 14 may be connected to external circuitry, for example, the first drive assembly 14 may be electrically connected to the circuit board 4 in the electronic device 100. When the user holds the electronic device 100 to shoot, the circuit board 4 controls the first driving assembly 14 to work, the first driving coil 142 is electrified to generate an electromagnetic field, a magnetic force is generated between the first driving coil 142 and the first magnetic member 171, the magnetic force drives the first driving coil 142 to move, and the first driving coil 142 drives the image sensor assembly 16 to move through the supporting plate 141.

In practical applications, an acceleration sensor is generally further disposed in the electronic device 100, and the acceleration sensor detects the moving direction and the moving amount of the electronic device 100. For example, the acceleration sensor detects the direction and the shake amount of the shake of the user's hand during photographing, the acceleration sensor transmits the shake signal to the processor in the circuit board 4, the processor determines the moving direction and the moving amount of the image sensor assembly 16 to be compensated according to the shake signal, controls the direction and the magnitude of the current in the first driving coil 142, adjusts the direction and the magnitude of the magnetic force generated between the first driving coil 142 and the first magnetic member 171, and controls the moving direction and the moving amount of the first driving assembly 14, and the first driving assembly 14 drives the image sensor assembly 16 to move. For example, the first driving component 14 drives the image sensor component 16 to translate or rotate in the plane of the first driving component to compensate the interference of hand shake when the user shoots, improve the blurring phenomenon of the image and improve the quality of the image.

Referring to fig. 9, in the present embodiment, the second driving assembly 15 includes a support base 151 and a second driving coil 152. The supporting seat 151 is sleeved on the outer wall of the lens 13 and is used for supporting the lens 13. Illustratively, the outer wall of the lens 13 may be provided with external threads, the inner wall of the support base 151 is provided with internal threads, and the support base 151 is in threaded connection with the outer wall of the lens 13. The second driving coil 152 is sleeved on the outer wall of the supporting seat 151, and the second driving coil 152 is fixedly connected with the supporting seat 151.

The second drive assembly 15 may be electrically connected to the circuit board 4 in the electronic device 100. When the user holds the electronic device 100 to shoot, the circuit board 4 controls the second driving assembly 15 to work, the second driving coil 152 is electrified to generate an electromagnetic field, a magnetic force is generated between the second driving coil 152 and the second magnetic member 172, the magnetic force drives the second driving coil 152 to move, and the second driving coil 152 drives the lens 13 to move through the supporting seat 151.

When a user captures an image, for example, the user inputs a focusing instruction by operating a display interface of the electronic device 100, the circuit board 4 in the electronic device 100 receives the focusing instruction and controls the direction and magnitude of the current in the second driving coil 152, and adjusts the direction and magnitude of the magnetic force generated between the second driving coil 152 and the second magnetic member 172, thereby controlling the moving direction and amount of the second driving assembly 15, and the second driving assembly 15 drives the lens 13 to move. For example, the second driving component 15 drives the lens 13 to move along the optical axis direction thereof so as to focus the shooting object.

In addition, in order to generate an even magnetic force between the second driving coil 152 and each portion of the second magnetic member 172, a region of the surface of the second driving coil 152 opposite to the second magnetic member 172 may be parallel to the surface of the second magnetic member 172. Taking the example that four second magnetic members 172 are uniformly arranged at intervals along the circumferential direction of the inner edge of the first fixing portion 121, the second driving coil 152 may be a substantially rectangular coil, and each side of the second driving coil 152 corresponds to the second magnetic member 172. Alternatively, the inner edge of the first fixing portion 121 is provided with six or eight second magnetic members 172 at regular intervals along the circumferential direction thereof, and the second driving coil 152 is a substantially hexagonal coil or an octagonal coil, respectively.

The outer wall of the lens 13 is generally cylindrical, and thus, the support base 151 may be a circular ring structure, and for the case where the second driving coil 152 is a rectangular coil, a hexagonal coil, or an octagonal coil, a partial region of the inner wall of the second driving coil 152 may be fixed to the outer wall of the support base 151, for example, these regions of the second driving coil 152 may be bonded or welded to the outer wall of the support base 151.

In some embodiments, the first magnetic member 171 and the second magnetic member 172 may be fixed on the first fixing portion 121. Specifically, the first magnetic member 171 is fixed on a side surface of the first fixing portion 121 facing the first driving assembly 14, and the second magnetic member 172 is fixed on a side surface of the first fixing portion 121 facing the second driving assembly 15. For example, the first and second magnetic members 171 and 172 may be adhered to the surface of the first fixing portion 121.

In other embodiments, as shown in fig. 6, the magnetic assembly 17 may further include a magnetic conductive member 173, where the magnetic conductive member 173 is fixed on the first fixing portion 121, and the first magnetic member 171 and the second magnetic member 172 are fixed by the magnetic conductive member 173. The magnetic conductive member 173 includes a first magnetic conductive portion 1731 and a second magnetic conductive portion 1732, the first magnetic conductive portion 1731 faces the first driving assembly 14, the second magnetic conductive portion 1732 faces the second driving assembly 15, the first magnetic member 171 is fixed on the first magnetic conductive portion 1731, and the second magnetic member 172 is fixed on the second magnetic conductive portion 1732.

Referring to fig. 10, taking the first magnetic member 171 and the second magnetic member 172 as an example, the first magnetic conductive portion 1731 and the second magnetic conductive portion 1732 of the magnetic conductive member 173 may be perpendicular to each other. The magnetic poles of the first magnetically conductive portion 1731 and the second magnetically conductive portion 1732, for example, the first magnetically conductive portion 1731 is a north pole (N pole) and the second magnetically conductive portion 1732 is a south pole (S pole); alternatively, the first magnetically conductive portion 1731 is an S-pole, and the second magnetically conductive portion 1732 is an N-pole.

The surface of the first magnetic member 171 is attached to the surface of the first magnetic conductive portion 1731, and the surface of the second magnetic member 172 is attached to the surface of the second magnetic conductive portion 1732. The first magnetic member 171 may be attracted to the surface of the first magnetic conductive portion 1731 by magnetic attraction, and the second magnetic member 172 may be attracted to the surface of the second magnetic conductive portion 1732 by magnetic attraction.

For example, the first magnetic conductive portion 1731 is N-pole, the side of the first magnetic member 171 attracted to the first magnetic conductive portion 1731 is S-pole, and the side of the first magnetic member 171 facing the first driving component 14 is N-pole; the second magnetic conductive portion 1732 is an S-pole, and the second magnetic member 172 is an N-pole on a side of the second magnetic conductive portion 1732, and an S-pole on a side of the second magnetic conductive member 173 facing the second driving assembly 15.

Alternatively, the first magnetic conductive portion 1731 is an S-pole, the side of the first magnetic member 171 attracted to the first magnetic conductive portion 1731 is an N-pole, and the side of the first magnetic member 171 facing the first driving component 14 is an S-pole; the second magnetic conductive portion 1732 is N-pole, the side of the second magnetic member 172 attracted to the second magnetic conductive portion 1732 is S-pole, and the side of the second magnetic conductive member 173 facing the second driving assembly 15 is N-pole.

In order to firmly connect the first magnetic member 171 and the second magnetic member 172 with the magnetic conductive member 173, the first magnetic member 171 and the first magnetic conductive portion 1731 and the second magnetic member 172 and the second magnetic conductive portion 1732 may be connected by an adhesive on the basis that the first magnetic member 171 and the second magnetic member 172 are both attracted to the surface of the magnetic conductive member 173 by magnetic attraction. For example, the first magnetic member 171 and the second magnetic member 172 are both adhered to the magnetic conductive member 173 by strong adhesive.

The magnetic conductive member 173 may be adhered or welded to the first fixing portion 121, specifically, as shown in fig. 6, a side wall of the first fixing portion 121 facing the lens 13 and a side wall of the first fixing portion 121 facing the bottom of the housing 11 may be perpendicular to each other, and a surface of the first magnetic conductive portion 1731 of the magnetic conductive member 173 is adhered to a surface of the first fixing portion 121 facing the bottom of the housing 11, and a surface of the second magnetic conductive portion 1732 of the magnetic conductive member 173 is adhered to a side wall of the first fixing portion 121 facing the lens 13.

Fig. 11 is a schematic structural view of a fixing bracket according to an embodiment of the present application. Referring to fig. 11, the fixing bracket 12 may further be provided with a positioning plate 123, where the positioning plate 123 has a reinforcing effect on fixing the magnetic conductive member 173, so as to ensure that the magnetic conductive member 173 and the first fixing portion 121 are firmly connected. As a specific embodiment, the positioning plate 123 may be supported at a bent portion of the magnetic conductive member 173, that is, the positioning plate 123 is located at a connection portion between the first magnetic conductive portion 1731 and the second magnetic conductive portion 1732. The positioning plate 123 may include two parts perpendicular to each other in correspondence with the structure of the connection portion of the first and second magnetic conductive portions 1731 and 1732.

A gap is formed between the positioning plate 123 and the first fixing portion 121, the width of the gap is matched with the thickness of the magnetic conduction member 173, one side of the magnetic conduction member 173 is attached to the first fixing portion 121, and a bending portion on the other side surface of the magnetic conduction member 173 is attached to the positioning plate 123. Illustratively, both ends of the positioning plate 123 are connected to the supporting parts 1221 on both sides, respectively; alternatively, the first fixing portion 121 has a structure for fixing the positioning plate 123, and both ends of the positioning plate 123 are fixed to the first fixing portion 121.

Fig. 12 is a front view of fig. 7; fig. 13 is a cross-sectional view of B-B of fig. 12. Referring to fig. 13, in this embodiment, rolling contact is performed between the first driving assembly 14 and the first fixing portion 121, specifically, between a surface of the support plate 141 facing the first fixing portion 121 and a surface of the first fixing portion 121, so as to ensure smooth movement of the first driving assembly 14 in a plane thereof.

Specifically, the first fixing portion 121 is provided with a first limiting portion 1211, one surface of the support plate 141 facing the first fixing portion 121 is provided with a second limiting portion 1411, the second limiting portion 1411 is opposite to the first limiting portion 1211, a ball 1211b is provided between the first limiting portion 1211 and the second limiting portion 1411, and the first limiting portion 1211 and the second limiting portion 1411 are contacted by the ball 1211 b.

As shown in connection with fig. 8 and 11, exemplary first stopper 1211 may be a stopper boss located on a side surface of the first fixing portion 121 facing the support plate 141, and the second stopper 1411 may be a stopper boss on the support plate 141 protruding toward the first fixing portion 121, with the ball 1211b located between the first stopper 1211 and the second stopper 1411. When the support plate 141 moves in the plane thereof, the balls 1211b roll between the first and second stopper portions 1211 and 1411, and the support plate 141 and the first fixing portion 121 do not contact each other, so that friction therebetween can be reduced, and flexible movement of the support plate 141 is ensured.

In this embodiment, at least one first limiting portion 1211 is disposed on the first fixing portion 121, and at least one second limiting portion 1411 is disposed on the supporting plate 141. In order to stabilize the contact between the support plate 141 and the first fixing portion 121, the support plate 141 is ensured to move smoothly, at least two first limiting portions 1211 are provided on the first fixing portion 121, and at least two second limiting portions 1411 are provided on the support plate 141.

Taking the first fixing portion 121 and the supporting plate 141 as an example, two first limiting portions 1211 and two second limiting portions 1411 are respectively provided, the two first limiting portions 1211 may be respectively located at opposite sides of the first fixing portion 121, and the two second limiting portions 1411 may be respectively located at opposite sides of the supporting plate 141, so as to ensure balance between both sides of the supporting plate 141 and stability of the supporting plate 141.

It is to be understood that the number of the first limiting portions 1211 provided on the first fixing portion 121 is not limited to two, and the number of the first limiting portions 1211 may be four, six, eight, or the like; the number of the second stopper 1411 provided on the support plate 141 is not limited to two, and the number of the second stopper 1411 may be four, six, eight, or the like, corresponding to the first stopper 1211. The first limiting portions 1211 and the second limiting portions 1411 may be symmetrically disposed in pairs, so as to ensure balance of the support plate 141.

The position of the ball 1211b may be shifted during rolling, so as to limit the movement range of the ball 1211b, and prevent the ball 1211b from falling out between the first and second limiting parts 1211 and 1411, in an embodiment, one of the first and second limiting parts 1211 and 1411 may be provided with a limiting groove 1211a, and the ball 1211b moves within the limiting groove 1211 a.

Referring to fig. 11 and 13, for example, a side surface of the first limiting portion 1211 facing the second limiting portion 1411 is provided with a limiting groove 1211a, and the ball 1211b is positioned in the limiting groove 1211a and contacts with the surface of the second limiting portion 1411. Wherein, the inner diameter of the limit groove 1211a may be matched with the outer diameter of the ball 1211b, the ball 1211b rotates in the limit groove 1211a and the position of the ball 1211b is fixed; alternatively, the inner diameter of the limit groove 1211a may be larger than the outer diameter of the ball 1211b, and the ball 1211b may be rotated and moved within the limit groove 1211 a.

In addition, referring to fig. 13, the diameter of the ball 1211b may be greater than the depth of the limit groove 1211a, a portion of the ball 1211b is positioned within the limit groove 1211a, and another portion of the ball 1211b is exposed outside the limit groove 1211 a. The portion of the ball 1211b exposed outside the limiting groove 1211a is located between the surface of the first limiting portion 1211 and the surface of the second limiting portion 1411, so that a gap is provided between the first limiting portion 1211 and the second limiting portion 1411, and the first limiting portion 1211 and the second limiting portion 1411 are prevented from contacting, so that the first limiting portion 1211 does not hinder the movement of the support plate 141.

In this embodiment, as shown in fig. 6, the first driving assembly 14 is movably connected to the first fixing portion 121 by magnetic attraction between the first driving coil 142 on the supporting plate 141 and the first magnetic member 171 on the first fixing portion 121, and the balls 1211b are disposed between the first limiting portion 1211 on the first fixing portion 121 and the second limiting portion 1411 on the supporting plate 141, so that there is a gap between the supporting plate 141 and the first fixing portion 121 and the two are in rolling contact.

On this basis, in order to ensure that the support plate 141 is stably contacted with the first fixing portion 121, the support plate 141 may be a magnetic conductive plate in one embodiment. In this way, the first magnetic member 171 on the first fixing portion 121 generates a magnetic attraction force on the support plate 141, so that not only the first driving coil 142 and the first magnetic member 171 have a magnetic force therebetween, but also the support plate 141 and the first magnetic member 171 have a magnetic force therebetween, thereby enhancing the magnetic attraction force between the first driving assembly 14 and the first magnetic member 171, ensuring that the support plate 141 is always in contact with the first fixing portion 121, and avoiding the support plate 141 from being released.

It should be noted that, referring to fig. 11, the fixing bracket 12 may be an integrally formed piece, and the first fixing portion 121 and the second fixing portion 122 are integrally formed, and the second fixing portion 122 is formed on a side of the first fixing portion 121 facing the bottom of the housing 11.

In other embodiments, the first fixing portion 121 and the second fixing portion 122 may be separately designed and manufactured, and the first fixing portion 121 and the second fixing portion 122 are connected together to form the fixing bracket 12. For example, the first fixing portion 121 and the second fixing portion 122 are bonded, welded, or connected by a connecting member such as a bolt, a screw, a rivet, or the like. In this regard, the first fixing portion 121 may be a ring-shaped member, and the second fixing portion 122 may include a plurality of separate supporting portions 1221; alternatively, the second fixing portion 122 includes a ring portion as a main body, the ring portion is matched with the first fixing portion 121, the ring portion is bonded to the first fixing portion 121, and each of the support portions 1221 is connected to the ring portion. Wherein, the first stopper 1211 on the fixing bracket 12 may be formed on the first fixing portion 121 or the second fixing portion 122.

Referring to fig. 4 and 6, in the image capturing module 1 provided in the present embodiment, the image sensor assembly 16 includes an image sensor 161 and a flexible electrical connector 162. The image sensor 161 is located on the light-emitting side of the lens 13, for example, the optical axis of the lens 13 passes through the center of the image sensor 161. The light emitted from the lens 13 is irradiated to the image sensor 161, and the image sensor 161 converts the emitted light signal into an electric signal by photoelectric conversion, thereby realizing the imaging function of the image pickup module 1.

The flexible electrical connector 162 is used to electrically connect the image sensor 161 to an external circuit, and further, control the image sensing operation through the external circuit. Specifically, one end of the flexible electrical connector 162 is connected to the image sensor 161, and the other end of the flexible electrical connector 162 is connected to an external circuit, for example, the other end of the flexible electrical connector 162 is connected to the circuit board 4 in the electronic apparatus 100. When a user shoots, a processor on the circuit board 4 controls the image sensor 161 to operate.

The image sensor 161 generates heat during operation, the heat is collected on the image sensor 161, which affects the performance of the image sensor 161, and when serious, the image sensor 161 cannot work normally, so that heat dissipation of the image sensor 161 is required. In the related art, the image sensor 161 radiates heat through an air gap between the image sensor 161 and the bottom of the housing 11, and the heat radiation efficiency is low, and the image sensor 161 cannot operate in a high power consumption mode for a long time. For example, after the user activates the camera on the electronic device 100 for 5 minutes, the image sensor 161 enters a thermal protection mode and stops operating.

Fig. 14 is an exploded view of an image sensor contact pad provided in an embodiment of the present application. Referring to fig. 6 and 14, in the present embodiment, a space is provided between the heat radiation surface of the image sensor 161 (the surface of the image sensor 161 facing the inner bottom wall of the case 11) and the inner bottom wall of the case 11 (the bottom plate 112), and the space is filled with the heat conductive liquid 18, so that the heat radiation of the image sensor 161 is performed by the heat conductive liquid 18.

The heat of the heat radiation surface of the image sensor 161 is transferred to the heat conduction liquid 18 by heat conduction, and the heat conduction liquid 18 conducts the heat to the bottom plate 112, and the heat is radiated to the outside through the bottom plate 112, thereby radiating the heat of the image sensor 161. Through the heat conduction effect of the heat conduction liquid 18, the heat dissipation efficiency of the image sensor 161 can be improved, the heat dissipation effect of the image sensor 161 is improved, and further the working performance of the image sensor 161 is ensured.

Referring to fig. 14, an annular sealing plate 19 is attached to a bottom plate 112 of the housing 11, and the heat conductive liquid 18 is located in a region surrounded by the annular sealing plate 19. The heat conductive liquid 18 is a flowable liquid, and the annular sealing plate 19 is provided on the bottom plate 112 of the housing 11, so that the heat conductive liquid 18 is confined in the area surrounded by the annular sealing plate 19. The area surrounded by the annular sealing plate 19 may correspond to the heat dissipation surface of the image sensor 161, so that the area where the heat conduction liquid 18 is located corresponds to the heat dissipation surface of the image sensor 161, and the heat conduction effect of the heat conduction liquid 18 on the image sensor 161 is ensured.

In order to make the heat conductive liquid 18 sufficiently contact with the heat radiation surface of the image sensor 161, a gap may be provided between the annular sealing plate 19 and the heat radiation surface of the image sensor 161, and the liquid surface of the heat conductive liquid 18 may be higher than the surface of the annular sealing plate 19. Since the gap between the annular sealing plate 19 and the image sensor 161 is small, the heat conduction liquid 18 is prevented from overflowing outside the annular sealing plate 19 by the surface tension of the heat conduction liquid 18 in the gap.

In addition, after the heat-conducting liquid 18 absorbs the heat of the image sensor 161, the temperature rises, the volume of the heat-conducting liquid will expand to a certain extent, so that the heat-conducting liquid 18 overflows outwards, and the gap between the annular sealing plate 19 and the image sensor 161 can accommodate the expansion amount of the heat-conducting liquid 18, and the capillary action of the gap can limit the heat-conducting liquid 18 in the area where the annular sealing plate 19 is located, so that the heat-conducting liquid 18 is prevented from overflowing out of the annular sealing plate 19, and other devices of the image pickup module 1 are prevented from being influenced.

Referring to fig. 14, in one embodiment, a plurality of seal holes 191 may be provided at intervals on the annular seal plate 19. By arranging the plurality of seal holes 191, when the heat conduction liquid 18 overflows outwards along the surface of the annular seal plate 19, the heat conduction liquid 18 enters each seal hole 191, and the heat conduction liquid 18 is stored in a sealed mode through the seal holes 191, so that the heat conduction liquid 18 can be prevented from overflowing out of the annular seal plate 19.

In other embodiments, instead of the seal hole 191, the surface of the annular seal plate 19 may be a rugged corrugated surface. When the heat conducting liquid 18 overflows outwards along the surface of the annular sealing plate 19, the concave areas between two adjacent bulges of the corrugated surface are used for storing the heat conducting liquid 18, gaps are formed between the tops of the bulge areas of the corrugated surface and the image sensor 161, and the heat conducting liquid 18 can be prevented from being outwards diffused by the surface tension action of the heat conducting liquid 18 in the gaps, so that the corrugated surface can prevent the heat conducting liquid 18 from overflowing out of the annular sealing plate 19.

In order to prevent the heat conductive liquid 18 from flowing to the end of the annular sealing plate 19 along the recessed area of the corrugated surface when the corrugated surface is machined on the surface of the annular sealing plate 19 to seal and store the heat conductive liquid 18, a stopper edge may be provided on the outer edge of the annular sealing plate 19, the height of the stopper edge being greater than the thickness of the recessed area of the corrugated surface, for example, the stopper edge being flush with the top of the raised area of the corrugated surface.

In addition, the extending direction of the corrugations (extending direction of the convex area and the concave area) of the corrugated surface may coincide with the extending direction of each side of the annular sealing plate 19. Taking the annular sealing plate 19 as a rectangular frame structure for example, the extending direction of the corrugation surface of one side of the annular sealing plate 19 is consistent with the extending direction of the side, so that when the heat conduction liquid 18 overflows outwards, the heat conduction liquid 18 needs to pass through the protrusions on the corrugation surface to reach the adjacent concave areas, and the corrugation surface can effectively prevent the heat conduction liquid 18 from overflowing outwards.

Fig. 15 is a schematic structural view of an annular sealing plate according to an embodiment of the present application. In another embodiment, as shown in fig. 15, a plurality of such strip grooves 192 may be provided on the surface of the annular sealing plate 19 at intervals so as to extend in the contour line direction of the annular sealing plate 19, instead of the sealing hole 191. Taking the outline of the annular sealing plate 19 as a rectangular frame as an example, the strip-shaped groove 192 may extend in the side length direction of the annular sealing plate 19; the strip-shaped groove 192 located at the corner of the annular sealing plate 19 may extend to both sides, for example, the strip-shaped groove 192 located at the corner of the annular sealing plate 19 is a vertically curved strip-shaped groove 192.

So configured, when the heat transfer fluid 18 overflows, the strip-shaped groove 192 can store the heat transfer fluid 18; further, since the extending direction of the bar-shaped groove 192 is substantially perpendicular to the overflowing direction of the heat conductive liquid 18, the bar-shaped groove 192 prevents the heat conductive liquid 18 from overflowing outward.

It is understood that by providing the strip grooves 192 at intervals on the surface of the annular sealing plate 19, the adjacent strip grooves 192 are not communicated with each other, and the strength of the annular sealing plate 19 is less affected, so that the annular sealing plate 19 is prevented from being bent or even broken. In addition, as shown in fig. 15, for example, the annular sealing plate 19 is bent along the line a, and the extending direction of the strip grooves 192 at both ends of the bent portion is perpendicular to the extending direction of the strip grooves 192 at the middle portion, so that the strength of the annular sealing plate 19 is enhanced.

Further, as shown in fig. 15, a plurality of rows of the strip grooves 192 may be provided at intervals from the inner edge to the outer edge of the annular sealing plate 19, and the strip grooves 192 of different rows may be provided so as to be offset from each other. In this way, the space between the adjacent strip grooves 192 is also shifted in the direction from the inner edge to the outer edge of the annular sealing plate 19, and when the heat transfer liquid 18 in the strip groove 192 near the inner edge overflows, the heat transfer liquid 18 overflows from the end of the strip groove 192 to the strip groove 192 near the outer edge and is stored, thereby preventing the heat transfer liquid 18 from overflowing.

The annular sealing plate 19 may be a rubber plate or a silicone plate, for example. Taking the annular sealing plate 19 with a plurality of sealing holes 191 at intervals as an example, the annular sealing plate 19 is a porous rubber plate or a porous silica gel plate.

Fig. 16 is a schematic structural diagram of an image sensor assembly according to an embodiment of the present application. Referring to fig. 16, the flexible electrical connector 162 connected to the image sensor 161 may include a connection part 1621, a movable cantilever 1622, and a mounting part 1623, the connection part 1621 being connected to the image sensor 161, the mounting part 1623 being connected to an external circuit (e.g., a circuit board 4 of the electronic device 100), the movable cantilever 1622 being located between the connection part 1621 and the mounting part 1623.

The connecting portion 1621 is connected to a side surface of the image sensor 161, the movable cantilever 1622 extends around the image sensor 161, the movable cantilever 1622 is located inside the housing 11 of the camera module 1, one end of the mounting portion 1623 is connected to the movable cantilever 1622, the mounting portion 1623 extends out of the housing 11, the mounting portion 1623 extends toward the circuit board 4, and the other end of the mounting portion 1623 is connected to the circuit board 4. For example, the end of the mounting portion 1623 is connected to the circuit board 4 via an electrical connector.

The movable cantilever 1622 is a movable part of the flexible electrical connector 162, and when the image sensor 161 moves along with the first driving component 14, the movable cantilever 1622 deforms and moves accordingly, so as to avoid the restriction of the flexible electrical connector 162 to the movement of the image sensor 161.

In this embodiment, the movable cantilever 1622 may surround the image sensor 161 at least half a turn. For example, the connection part 1621 is connected to a side of the image sensor 161, and the movable cantilever 1622 extends from the side connected to the connection part 1621 around the image sensor 161 to an adjacent side, so that the movable cantilever 1622 includes at least two parts extending in different directions, and the movable cantilever 1622 can move the image sensor 161 in any direction in a plane thereof.

Referring to fig. 16, in one embodiment, the movable cantilever 1622 may surround the image sensor 161 one turn, and the flexible electrical connector 162 as a whole may extend out of the housing 11 after the flexible electrical connector 162 surrounds the image sensor 161 one turn from its end connected to the image sensor 161. In this way, the movable cantilever 1622 may provide the image sensor 161 with a sufficient degree of freedom such that the movement of the image sensor 161 is not restricted. It should be noted that the movable cantilever 1622 is an elastic cantilever, and the movable cantilever 1622 may recover its original shape after being deformed to provide reliable guarantee for the movement of the image sensor 161.

In addition, the connection part 1621 of the flexible electrical connector 162 may be horizontally maintained with the surface of the image sensor 161, and the movable cantilever 1622 is vertically maintained with the surface of the image sensor 161, so that the deformation and movement of the movable cantilever 1622 are easy, the mounting part 1623 is protruded outside the housing 11 and connected with the circuit board 4, and thus the mounting part 1623 may be attached to the inner wall of the rear cover 21 of the electronic device 100, and the mounting part 1623 is also horizontally maintained with the surface of the image sensor 161.

As shown in connection with fig. 6, in some embodiments, the image sensor assembly 16 may further include a light-transmissive plate 163, which light-transmissive plate 163 may be a transparent protective plate, the light-transmissive plate 163 serving to protect the image sensor 161 from damage. Alternatively, the light-transmitting plate 163 may be a filter, and the light-transmitting plate 163 is used for filtering out light with a specific wavelength; illustratively, the light-transmissive plate 163 is used to filter out invisible light, such as infrared or ultraviolet.

In the camera module 1 provided in this embodiment, by arranging the fixing bracket 12 in the housing 11, the fixing bracket 12 includes the first fixing portion 121 and the second fixing portion 122, the first fixing portion 121 is sleeved outside the lens 13, one end of the second fixing portion 122 is connected to one side of the first fixing portion 121 facing the bottom of the housing 11, and the other end of the second fixing portion 122 is supported at the bottom of the housing 11; by providing the magnetic assembly 17 at the inner edge of the first fixing portion 121, a portion of the magnetic assembly 17 facing the first driving assembly 14 is used for driving the first driving assembly 14 to move, a portion of the magnetic assembly 17 facing the second driving assembly 15 is used for driving the second driving assembly 15 to move, and the image sensor assembly 16 and the lens 13 are respectively driven to move by the first driving assembly 14 and the second driving assembly 15. Through the magnetic component 17 that sets up on the fixed bolster 12, realize the drive to first drive assembly 14 and second drive assembly 15, simplified the structure of module 1 of making a video recording, the equipment process of module 1 of making a video recording is simple, and easily test the performance of module 1 of making a video recording, has improved the reliability of module 1 of making a video recording.

The present embodiment also provides an assembling method of the camera module, which is used for assembling the camera module 1 as described above. Specifically, the assembly method comprises the following steps:

a lens 13 is provided, and a second driving assembly 15 is sleeved on the outer wall of the lens 13.

A fixing bracket 12 is provided, the fixing bracket 12 includes a first fixing portion 121 and a second fixing portion 122, the second fixing portion 122 is connected to the bottom surface of the first fixing portion 121, and at least one set of magnetic components 17 is fixed at the inner edge of the first fixing portion 121.

A first drive assembly 14 is provided.

It can be understood that the second driving component 15 may be sleeved on the lens 13 and the magnetic component 17 may be fixed on the fixing support 12, respectively, and the sequence of the steps of providing the first driving component 14, assembling the lens 13 and the second driving component 15, and assembling the fixing support 12 and the magnetic component 17 is not limited in this embodiment. Wherein the first drive assembly 14 and the second drive assembly 15 may be manufactured simultaneously.

Then, the fixing bracket 12 is sleeved outside the lens 13, so that the second driving component 15 on the outer wall of the lens 13 faces a part of the magnetic component 17 at the inner edge of the first fixing part 121.

The first drive assembly 14 is then attached to the stationary bracket 12 with one side surface of the first drive assembly 14 facing another portion of the magnetic assembly 17.

After the first driving assembly 14 is assembled on the fixing bracket 12, the image sensor assembly 16 is fixed on the other side surface of the first driving assembly 14.

Finally, a housing 11 is sleeved outside the fixing bracket 12. Wherein the housing 11 may include an outer frame 111 and a bottom plate 112, and the image sensor assembly 16 is supported on the bottom plate 112. The base plate 112 may be first installed at the bottom of the image sensor assembly 16, and then the outer frame 111 is fixedly coupled with the base plate 112.

It should be noted that, after the assembly of the first driving component 14 and the second driving component 15 and the fixed support 12 is completed, the performance of the first driving component 14 and the second driving component 15 can be tested, so that the accuracy of overall driving performance testing of the first driving component 14 and the second driving component 15 can be improved, the anti-shake performance of the camera module 1 can be accurately tested, and the reliability of the camera module 1 can be improved. After the driving performance test of the first driving assembly 14 and the second driving assembly 15 is completed, the image sensor assembly 16 is assembled on the first driving assembly 14, the image sensor assembly 16 can be manufactured independently, and the production cost of the image sensor assembly 16 can be reduced.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

The terms first, second, third, fourth and the like in the description and in the claims of embodiments of the application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Claims (19)

1. A camera module, comprising: the lens comprises a shell, a fixed support, a lens, a first driving assembly, a second driving assembly and an image sensor assembly; a mounting hole is formed in one side surface of the shell, the lens is partially accommodated in the shell through the mounting hole, the fixing support is arranged in the shell, and the image sensor assembly is positioned at the bottom of the shell; the fixed support comprises a first fixed part and a second fixed part, the first fixed part is sleeved outside the lens, one end of the second fixed part is connected to one side of the first fixed part facing the bottom of the shell, the other end of the second fixed part is supported on the inner bottom wall of the shell, and at least one group of magnetic components are fixed on the inner edge of the first fixed part;

The first driving component is positioned on one side of the first fixing part facing the bottom of the shell, one side surface of the first driving component faces a part of the magnetic component, the other side surface of the first driving component is connected with the image sensor component, and the magnetic component is used for driving the first driving component to move; the second driving component is sleeved on the outer wall of the lens, faces the other part of the magnetic component, and is used for driving the second driving component to move;

the first driving assembly comprises a supporting plate and at least one first driving coil, the first driving coil is arranged on the surface of one side of the supporting plate, which faces the magnetic assembly, and the first driving coil is arranged opposite to the magnetic assembly;

the first fixing part is provided with at least one first limiting part, one surface of the supporting plate facing the first fixing part is provided with at least one second limiting part, the second limiting part is opposite to the first limiting part, a ball is arranged between the first limiting part and the second limiting part, and the first limiting part and the second limiting part are contacted through the ball.

2. The camera module of claim 1, wherein the second fixing portion includes a plurality of supporting portions disposed at intervals, and the first driving assembly and the image sensor assembly are located in a space defined by the plurality of supporting portions.

3. The camera module according to claim 2, wherein at least two sets of the magnetic components are fixed to an inner edge of the first fixing portion, and the two sets of the magnetic components are respectively disposed on two opposite sides of the first fixing portion.

4. A camera module according to any one of claims 1 to 3, wherein the magnetic assembly comprises a first magnetic member and a second magnetic member, the first magnetic member being oriented towards and driving the first drive assembly to move, the second magnetic member being oriented towards and driving the second drive assembly to move.

5. The camera module of claim 4, wherein the magnetic assembly further comprises a magnetically conductive member secured to the first securing portion, the magnetically conductive member comprising a first magnetically conductive portion and a second magnetically conductive portion; the first magnetic conduction part faces the first driving assembly, and the surface of the first magnetic piece is attached to the surface of the first magnetic conduction part; the second magnetic conduction part faces the second driving assembly, and the surface of the second magnetic piece is attached to the surface of the second magnetic conduction part;

The magnetic properties of the first magnetic conduction part and the second magnetic conduction part are opposite, the magnetic properties of the first magnetic piece and the first magnetic conduction part are opposite, and the magnetic properties of the second magnetic piece and the second magnetic conduction part are opposite.

6. The camera module according to claim 5, wherein the first fixing portion is provided with at least two first limiting portions, and the two first limiting portions are oppositely arranged; at least two second limiting parts are arranged on the supporting plate, and each second limiting part corresponds to each first limiting part.

7. The camera module of claim 5, wherein one of the first and second limiting portions is provided with a limiting groove, and the ball moves in the limiting groove.

8. The camera module of claim 7, wherein a gap is provided between the first and second stop portions.

9. The camera module of any of claims 5-8, wherein the support plate is a magnetically permeable plate.

10. The camera module of any of claims 1-3, 5-8, wherein the second drive assembly comprises a support base and a second drive coil, the support base is sleeved on an outer wall of the lens, and the second drive coil is sleeved on an outer wall of the support base.

11. The camera module of any of claims 1-3, 5-8, wherein the image sensor assembly comprises an image sensor having a void between a heat dissipating surface of the image sensor and an inner bottom wall of the housing, the void being filled with a thermally conductive liquid.

12. The camera module of claim 11, wherein an annular sealing plate is attached to the inner bottom wall of the housing, and the heat-conducting liquid is located in an area surrounded by the annular sealing plate.

13. The camera module of claim 12, wherein the annular seal plate has a gap between the annular seal plate and the image sensor.

14. The camera module of claim 12, wherein a plurality of seal holes are formed in the annular seal plate at intervals; alternatively, the surface of the annular sealing plate is a rugged corrugated surface.

15. The camera module according to claim 12, wherein a plurality of strip-shaped grooves are arranged on the annular sealing plate at intervals, and the strip-shaped grooves extend along the contour line direction of the annular sealing plate;

wherein, from the inner edge to the outer edge of the annular sealing plate, a plurality of rows of strip-shaped grooves are arranged, and the strip-shaped grooves positioned in different rows are staggered.

16. The camera module of any of claims 12-15, wherein the image sensor assembly further comprises a flexible electrical connector having one end connected to the image sensor and the other end for connection to an external circuit.

17. The camera module of claim 16, wherein the flexible electrical connection comprises a connection portion, a movable cantilever, and a fixed portion, the connection portion being connected to the image sensor, the fixed portion being connected to the external circuit, the movable cantilever being located between the connection portion and the fixed portion;

wherein the movable cantilever surrounds the image sensor at least half a turn.

18. A method of assembling a camera module according to any one of claims 1 to 17, comprising:

providing a lens, and sleeving a second driving assembly on the outer wall of the lens;

providing a fixed bracket; the fixing support comprises a first fixing part and a second fixing part, and the second fixing part is connected to the bottom surface of the first fixing part;

fixing at least one group of magnetic components on the inner edge of the first fixing part;

Sleeving the fixed bracket fixed with the magnetic component outside the lens; wherein the second drive assembly faces a portion of the magnetic assembly;

providing a first driving assembly and connecting one side surface of the first driving assembly to the fixed bracket; wherein the first drive assembly faces another portion of the magnetic assembly;

providing an image sensor assembly and fixing the image sensor assembly to the other side surface of the first driving assembly;

and a shell is sleeved outside the fixed support.

19. An electronic device comprising at least one camera module according to any one of claims 1-17.

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