Camera module and electronic equipment

Abstract

The invention relates to a camera module and electronic equipment, the camera module comprises an anti-shake mechanism, the anti-shake mechanism comprises a first movable frame, a second movable frame and a third fixed frame which are connected in sequence in the thickness direction of the anti-shake mechanism, the first movable frame is used for installing a lens assembly, one of the first movable frame and the second movable frame is provided with a first sliding groove part, and the third fixed frame is provided with a second sliding groove part; one of the first movable frame and the third fixed frame is provided with a first sliding groove part, the other one is provided with a first sliding part, the first sliding part can slide along the first sliding groove part, the first sliding groove part extends in the first direction, one of the second movable frame and the third fixed frame is provided with a second sliding groove part, the other one is provided with a second sliding part, the second sliding part can slide along the second sliding groove part, and the second sliding groove part extends in the second direction. The structure has the advantages of being simple and low in manufacturing cost, double-layer freedom decoupling is achieved, motion crosstalk can be reduced, the moving inclination angle is reduced, supporting and limiting are more reliable, the shooting and video requirements of the electronic equipment under shaking can be met, and the use experience of a user is improved.

Description

Technical Field

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

[0002] With the rapid development of electronic equipment technology, electronic equipment including camera modules are widely used, such as mobile phones, tablet computers, etc., which are particularly favored and widely used by consumers. In order to avoid poor imaging effects caused by shaking of electronic equipment with camera modules during shooting, electronic equipment usually includes an optical image stabilization (OIS) mechanism. However, in the OIS mechanism of the camera module in the prior art, suspension wire stabilization or ball stabilization is generally used, that is, the active part of the OIS is supported by suspension wires or balls, but the support reliability of suspension wires or balls is poor, which easily leads to reduced anti-shake performance and cannot meet consumers' increasingly high shooting and video needs in motion. Summary of the invention

[0003] The present application provides a camera module and an electronic device to solve the problem of poor support reliability of the anti-shake mechanism in the camera module in the above-mentioned prior art.

[0004] A first aspect of an embodiment of the present application provides a camera module, including an anti-shake mechanism. Along the thickness direction of the anti-shake mechanism, the anti-shake mechanism includes a first movable frame, a second movable frame and a third fixed frame connected in sequence. The first movable frame is used to install a lens assembly. One of the first movable frame and the second movable frame is provided with a first slide groove portion, and the other is provided with a first sliding portion. The first sliding portion can slide along the first slide groove portion, and the first slide groove portion extends along the first direction. One of the second movable frame and the third fixed frame is provided with a second slide groove portion, and the other is provided with a second sliding portion. The second sliding portion can slide along the second slide groove portion, and the second slide groove portion extends along the second direction.

[0005] In this solution, since the first moving frame of the anti-shake mechanism in the camera module can move in a first direction relative to the second moving frame, and the second moving frame can move in a second direction relative to the third fixed frame, it has double-degree-of-freedom decoupling, which makes the motion crosstalk between the first moving frame and the second moving frame smaller, reduces the moving inclination angle, and can improve the movement accuracy of the first moving frame and the second moving frame, thereby improving the anti-shake effect. The method in which the second movable frame and the third fixed frame slide in cooperation with the second sliding part and the second sliding groove part, and the first movable frame and the second movable frame slide in cooperation with the first sliding part and the first sliding groove part has the advantages of simple structure and low manufacturing cost, and has small movement resistance, faster response speed and smooth movement. In addition, this matching method makes the support and limitation between the first movable frame, the second movable frame and the third fixed frame more reliable, and is not easy to produce sinking in the thickness direction. The force of the first sliding groove part and the second sliding groove part is more uniform, which improves the support reliability between the first movable frame, the second movable frame and the third movable frame, avoids the reduction of the anti-shake effect, and thus improves the anti-shake reliability of the anti-shake mechanism. In addition, this matching method can also enable the first sliding groove part and the second sliding groove part to have a larger travel space, so that the first movable frame and the second movable frame can have a larger moving travel, thereby improving the anti-shake angle of the anti-shake mechanism, and can meet the shooting and video requirements of the electronic device under more severe shaking, thereby improving the user experience.

[0006] In one possible design, the first slide groove portion includes a first positioning groove, which is used to cooperate with the first sliding portion to limit the sliding of the first sliding portion along the second direction, and the second slide groove portion includes a second positioning groove, which is used to cooperate with the second sliding portion to limit the sliding of the second sliding portion along the first direction.

[0007] In this solution, the first positioning groove cooperates with the first sliding part to prevent the first sliding part from sliding along the second direction in the first positioning groove, thereby preventing the first moving frame from being displaced in the second direction relative to the second moving frame. The second positioning groove cooperates with the second sliding part to prevent the second sliding part from sliding along the first direction in the second positioning groove, thereby preventing the second moving frame from being displaced along the first direction relative to the third fixed frame. As a result, the first moving frame can only be displaced along the first direction relative to the second moving frame, and the second moving frame can only be displaced along the second direction relative to the third fixed frame, thereby avoiding motion crosstalk, reducing the moving inclination angle, improving the displacement accuracy of the first moving frame and the second moving frame, and providing a high anti-shake effect for the camera module.

[0008] In a possible design, the first positioning groove and the second positioning groove are V-shaped grooves or trapezoidal grooves.

[0009] In the present solution, the openings of the V-shaped groove and the trapezoidal groove gradually increase along the thickness direction. When the first sliding part and the second sliding part cooperate with the V-shaped groove or the trapezoidal groove for support along the direction, the first sliding part and the second sliding part will be located at a position where the opening of the V-shaped groove or the trapezoidal groove is smaller, thereby limiting the displacement of the first sliding part and the second sliding part along the non-extension direction of the V-shaped groove or the trapezoidal groove, thereby avoiding the first moving frame relative to the second moving frame and the second moving frame relative to the third fixed frame from producing displacement in a non-preset direction, thereby achieving precise positioning of the first sliding part 121 and the second sliding part 131, and the structure of the V-shaped groove and the trapezoidal groove is simple, which is convenient for mass production and manufacturing, and can further reduce the structural complexity of the camera module and save manufacturing costs.

[0010] In a possible design, the first slide groove portion also includes a first sliding groove, and the second slide groove portion also includes a second sliding groove. Along the second direction, the width of the first sliding groove is greater than the width of the first sliding portion, and along the first direction, the width of the second sliding groove is greater than the width of the second sliding portion.

[0011] In this solution, when the first movable frame, the second movable frame and the third fixed frame are in supporting contact along the thickness direction, the structural setting can increase the fault tolerance of the first slide groove portion and the second slide groove portion, reduce the difficulty of matching between the first slide groove portion and the first sliding portion and between the second slide groove portion and the second sliding portion, improve the qualified rate of the camera module, reduce the manufacturing difficulty, and save costs.

[0012] In a possible design, the first sliding groove and the second sliding groove are square grooves or U-shaped grooves.

[0013] In this solution, the opening dimensions of the square groove and the U-shaped groove along the thickness direction are the same. When the first movable frame, the second movable frame and the third fixed frame cooperate to support and contact along the thickness direction, the square groove or the U-shaped groove and the first sliding part and the second sliding part can achieve a supporting and limiting function only in the thickness direction, and do not perform a limiting function in non-preset movement directions, thereby ensuring that the first sliding part and the second sliding part can move smoothly along the preset movement direction while increasing the fault tolerance of the first slide groove part and the second slide groove part.

[0014] In a possible design, the first sliding portion and the second sliding portion are semi-cylindrical structures or hemispherical structures.

[0015] In this solution, when the first sliding part and the second sliding part are semi-cylindrical structures or hemispherical structures, the contact area with the first slide groove part and the second slide groove part can be reduced, thereby reducing friction resistance and being easier to drive, thereby obtaining a faster response speed and improving the anti-shake efficiency of the camera module. The ends of the semi-cylindrical structure or the hemispherical structure are smooth curved surfaces, which are not prone to stress concentration and depression when in contact with the first slide groove part and the second slide groove part, thereby making the first slide groove part and the second slide groove part have a greater load-bearing capacity, thereby improving the reliability of the camera assembly when it falls, and increasing the service life of the camera assembly.

[0016] In a possible design, the first movable frame, the second movable frame and the third fixed frame are all integrally injection-molded structures.

[0017] In this solution, when the first movable frame, the second movable frame and the third fixed frame are all integral injection molded structures, that is, the first movable frame, the second movable frame and the third fixed frame do not need to be supported by other components, the components of the camera module can be further reduced, the manufacturing cost can be further reduced, and the manufacturing efficiency can be improved.

[0018] In a possible design, the first movable frame also includes a first body, the second movable frame also includes a second body, the third fixed frame also includes a third body, the first sliding part is detachably connected to the first body or the second body, and the second sliding part is detachably connected to the second body or the third body.

[0019] In this solution, the structure can further improve the matching tolerance of the first moving frame, the second moving frame and the third fixed frame. The positions of the first sliding part and the second sliding part can be adjusted according to the actual structure during the preparation process, so that the first moving frame, the second moving frame and the third fixed frame can effectively cooperate with the support connection, thereby improving the manufacturing efficiency of the camera module. The first sliding part and the second sliding part can also be replaced when they are severely worn, thereby reducing subsequent maintenance costs. In addition, the structural setting can make the material of the first sliding part and the second sliding part be other materials different from the first moving frame, the second moving frame and the third fixed frame, so as to improve the wear resistance of the first sliding part and the second sliding part and extend their service life.

[0020] In a possible design, lubricating material is disposed inside the first slide groove portion and the second slide groove portion, and the lubricating material is grease or lubricating oil.

[0021] In this solution, adding lubricating material to the first slide groove portion and the second slide groove portion can further reduce the sliding friction between the first sliding portion and the first slide groove portion and between the second sliding portion and the second slide groove portion, thereby improving the response speed, reducing power consumption, and improving the control accuracy of the first moving frame and the second moving frame.

[0022] In a possible design, the camera module also includes a magnet, and the anti-shake mechanism also includes an anti-shake coil. The anti-shake coil is used to drive the magnet to move along the first direction or the second direction. The magnet is fixed to the first movable frame, and the anti-shake coil is fixed to the third fixed frame. The anti-shake coil is arranged corresponding to the magnet.

[0023] In this solution, when the anti-shake mechanism of the camera module is working, the coil is energized to generate magnetic flux, thereby controlling the movement of the magnet, so that the magnet can drive the first moving frame to produce corresponding displacement. Therefore, this structure can provide driving force for the anti-shake mechanism, so that the first moving frame and the second moving frame of the anti-shake mechanism can slide according to the shaking direction and displacement of the lens assembly, so as to compensate for the shaking direction and displacement of the lens assembly and realize the anti-shake function.

[0024] In a possible design, the anti-shake mechanism also includes a magnetic sheet, which is fixed to the side of the third fixed frame facing away from the second movable frame, and the magnetic sheet can attract the magnet to press the third fixed frame against the first movable frame.

[0025] In this solution, the magnetic sheet can attract the magnet, so that the third fixed frame is pressed against the first movable frame, making the first movable frame, the second movable frame and the third fixed frame contact and fit more closely in the thickness direction, making the structure more stable and not easy to separate, thereby improving the structural stability of the camera module.

[0026] In a possible design, the anti-shake mechanism also includes a position detection sensor, which is arranged on the third fixed frame and is used to detect changes in the magnetic field of the magnet to feedback the positions of the first movable frame and the second movable frame. The position detection sensor is a Hall element or a tunnel magnetoresistance effect sensor.

[0027] In this solution, the position detection sensor can detect the magnetic field, and judge the movement position of the magnet by detecting the magnetic field changes of the magnet, thereby being able to judge the movement position of the first moving frame and the second moving frame, and feed back their real-time position changes, so that the camera module can control the current of the coil according to its real-time position changes, so as to control the position of the first moving frame and the second moving frame through closed-loop control by driving the magnet, thereby further improving the control accuracy of the first moving frame and the second moving frame.

[0028] In a possible design, the camera module further includes an automatic focusing mechanism, which is used to achieve automatic focusing of the camera module, and the automatic focusing mechanism is arranged on a side of the first moving frame away from the second moving frame.

[0029] In this solution, an automatic focusing mechanism is provided, which can enable the camera module to achieve automatic focusing while preventing shaking, thereby ensuring the shooting effect of the electronic device in various motion modes and improving the user experience.

[0030] In a possible design, the automatic focusing mechanism includes a focusing coil, which is arranged on the inner side of the magnet, and the focusing coil is an integrated annular coil or is formed by a combination of multiple coils.

[0031] In this solution, when the autofocus mechanism is working, the focusing coil is energized to generate magnetic flux, which interacts with the magnet, thereby driving the autofocus mechanism to achieve the autofocus function. And according to the specific structure and usage scenario of the camera module, the magnet, focusing coil, and anti-shake coil can be arranged in different ways.

[0032] The second aspect of the present application provides an electronic device, comprising a housing and a camera module as described in any of the above embodiments, wherein the camera module is installed in the housing. Since the camera module has the above technical effects, the electronic device including the camera module also has corresponding technical effects, which will not be described in detail here.

[0033] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of a camera module provided in this application;

[0035] Figure 2 for Figure 1 Partial exploded view of the camera module;

[0036] Figure 3 for Figure 2 Schematic diagram of the structure of the middle anti-shake mechanism;

[0037] Figure 4 for Figure 3 A cross-sectional view of the center anti-shake mechanism;

[0038] Figure 5 for Figure 2 A schematic diagram of a portion of the structure of the anti-shake mechanism;

[0039] Figure 6 for Figure 5 A schematic diagram of part of the structure of the center anti-shake mechanism at another angle;

[0040] Figure 7 for Figure 3 Schematic diagram of the coordination between the first moving frame and the second moving frame;

[0041] Figure 8 for Figure 3Schematic diagram of the cooperation between the first movable frame and the third fixed frame;

[0042] Fig. 9 for Figure 4 A partial enlarged view of the middle A;

[0043] Fig.10 for Figure 4 A partial enlarged view of point B in the middle;

[0044] Fig.11 for Figure 3 A schematic structural diagram of a third fixing frame in another embodiment;

[0045] Fig.12 for Figure 3 A schematic diagram of the structure of the second moving frame in another embodiment;

[0046] Fig.13 for Figure 3 A schematic diagram of a portion of the structure of the anti-shake mechanism;

[0047] Fig.14 for Fig.13 A schematic diagram of a portion of the structure of the center anti-shake mechanism from another viewing angle;

[0048] Fig.15 for Figure 3 A schematic diagram of a portion of the structure of the anti-shake mechanism;

[0049] Fig.16 for Figure 1 A schematic diagram of the structure of the magnetic coil of the camera module;

[0050] Fig.17 for Figure 1 A schematic diagram of the structure of the magnetic coil of the camera module in another embodiment.

[0051] Reference numerals:

[0052] 10- Camera module;

[0053] 1- Anti-shake mechanism;

[0054] 11- first moving frame;

[0055] 111- first chute portion;

[0056] 111a-first positioning groove;

[0057] 111b-first sliding groove;

[0058] 112-First ontology;

[0059] 12- Second moving frame;

[0060] 121- first sliding portion;

[0061] 122- second chute portion;

[0062] 122a-second positioning groove;

[0063] 122b-second sliding groove;

[0064] 123- Second body;

[0065] 124-clip portion;

[0066] 13- third fixed frame;

[0067] 131- second sliding portion;

[0068] 132-third body;

[0069] 133-protrusion;

[0070] 14- Anti-shake coil;

[0071] 15- Position detection sensor;

[0072] 16-Magnetic sheet;

[0073] 17- Anti-shake circuit board assembly;

[0074] 2-magnet;

[0075] 3- Automatic focusing mechanism;

[0076] 31-focusing coil;

[0077] 32- Lens bracket;

[0078] 33- focusing circuit board assembly;

[0079] 4- Shell

[0080] X-first direction;

[0081] Y-second direction;

[0082] Z-thickness direction.

[0083] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0084] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0085] In a specific embodiment, the present application is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0086] In order to avoid poor imaging effects caused by shaking of electronic devices with camera modules during shooting, electronic devices usually include optical image stabilization (OIS) mechanisms, but in the OIS mechanisms of camera modules in the prior art, wire-type anti-shake or ball-type anti-shake is generally used. The wire-type anti-shake uses wires to support the OIS active part, but in this structure, the wires play a supporting and conductive role at the same time. Due to the output limit, the elastic coefficient cannot be increased, and the strength is not high. During the large-stroke translation movement, the wire support sinks in the thickness direction, resulting in reduced anti-shake performance. The ball-type anti-shake uses multiple balls to support the entire OIS active part, and the magnetic force acts on the active part and the fixed part to compress the balls and keep the structure stable. However, in this structure, the balls are in contact with the plane. In a system with a large mass, the drop type will cause pits to appear on the contact surface, which reduces the anti-shake performance. Due to the poor support reliability of the wires and balls, it is easy to cause reduced anti-shake performance, so it cannot meet the increasingly high shooting and video needs of consumers in motion.

[0087] In order to solve the above technical problems, the embodiment of the present application provides a camera module 10, which can be installed in an electronic device to solve the problem of poor support reliability of the anti-shake mechanism in the camera module 10 in the above prior art. The electronic device can be any electronic device with a camera function, such as a mobile phone, a tablet computer, a notebook, an artificial intelligence (AI) device, a wearable device, a smart home device, etc. The embodiment of the present application does not impose any special restrictions on the specific form of the above electronic device.

[0088] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0089] The present application embodiment provides a camera module 10, such as Figure 1 to Figure 4 As shown, it includes an anti-shake mechanism 1. Along the thickness direction Z of the anti-shake mechanism 1, the anti-shake mechanism 1 includes a first movable frame 11, a second movable frame 12 and a third fixed frame 13 connected in sequence. The first movable frame 11 is used to install the lens assembly. One of the first movable frame 11 and the second movable frame 12 is provided with a first slide groove portion 111, and the other is provided with a first sliding portion 121. The first sliding portion 121 can slide along the first slide groove portion 111, and the first slide groove portion 111 extends along the first direction X. One of the second movable frame 12 and the third fixed frame 13 is provided with a second slide groove portion 122, and the other is provided with a second sliding portion 131. The second sliding portion 131 can slide along the second slide groove portion 122, and the second slide groove portion 122 extends along the second direction Y.

[0090] Since the camera module 10 will cause the lens assembly to shake when it shakes, therefore, when the camera module 10 shakes, according to the shaking direction and displacement of the lens assembly, the first moving frame 11 and the second moving frame 12 can drive the lens assembly to move in opposite directions, and compensate for the shaking direction and displacement of the lens assembly, thereby effectively overcoming the poor imaging caused by the shaking of the camera module 10, thereby achieving the anti-shake effect of the anti-shake mechanism 1.

[0091] In this embodiment, Figures 4 to 6 As shown, the second moving frame 12 and the third fixed frame 13 of the anti-shake mechanism 1 can generate displacement along the second direction Y relative to the third fixed frame 13 through the cooperation of the second sliding portion 131 and the second slide groove portion 122, so that the first moving frame 11 can move along the second direction Y with the movement of the second moving frame 12, and generate displacement along the second direction Y relative to the third fixed frame 13. The first moving frame 11 and the second moving frame 12 can cooperate with the first sliding portion 121 and the first slide groove portion 111, so that the first moving frame 11 can move relative to the second moving frame 12, and generate displacement in the first direction X, so that the first moving frame 11 can generate displacement along the first direction X and the second direction Y relative to the third fixed frame 13. The lens assembly is installed on the first movable frame 11, so that the first movable frame 11 can drive the lens assembly to move along the first direction X or the second direction Y, and when the first movable frame 11 simultaneously generates movement along the first direction X and the second direction Y, the first movable frame 11 can generate movement along the direction of its combined force and generate a combined displacement, thereby being able to drive the lens assembly to generate displacement in this direction, thereby realizing the anti-shake function of the camera module 10.

[0092] In the present application embodiment, Figure 7 and Figure 8As shown, since the first moving frame 11 of the anti-shake mechanism 1 in the camera module 10 can generate movement along the first direction X relative to the second moving frame 12, and the second moving frame 12 can generate movement along the second direction Y relative to the third fixed frame 13, it has double-layer degree of freedom decoupling, so that the movement crosstalk between the first moving frame 11 and the second moving frame 12 is smaller, the movement inclination angle is reduced, and the movement accuracy of the first moving frame 11 and the second moving frame 12 can be improved, and the anti-shake effect is improved. The second moving frame 12 and the third fixed frame 13 slide in cooperation with the second sliding portion 131 and the second slide groove portion 122, and the first moving frame 11 and the second moving frame 12 slide in cooperation with the first sliding portion 121 and the first slide groove portion 111 have the advantages of simple structure and low manufacturing cost, and small movement resistance, faster response speed, and smooth movement. In addition, this cooperation method makes the support and limit between the first moving frame 11, the second moving frame 12 and the third fixed frame 13 more reliable, and it is not easy to cause sinking in the thickness direction Z. The first slide groove portion 111 and the second slide groove portion The force on 122 is more uniform, which improves the support reliability between the first moving frame 11, the second moving frame 12 and the third moving frame 13, avoids the reduction of the anti-shake effect, and thus improves the anti-shake reliability of the anti-shake mechanism 1. In addition, this matching method can also enable the first slide groove portion 111 and the second slide groove portion 122 to have a larger travel space, so that the first moving frame 11 and the second moving frame 12 can have a larger moving stroke, thereby improving the anti-shake angle of the anti-shake mechanism 1, and can meet the shooting and video requirements of electronic equipment under more severe shaking, thereby improving the user experience.

[0093] Among them, Figures 5 to 8 In the specific embodiment shown, the first movable frame 11 and the second movable frame 12 slide in cooperation with each other through four first sliding parts 121 and four first slide groove parts 111, and the second movable frame 12 and the third fixed frame 13 slide in cooperation with each other through four second sliding parts 131 and four second slide groove parts 122, and are arranged at the four corners of the first movable frame 11, the second movable frame 12, and the third fixed frame 13 to improve the support stability and movement stability, and prevent the slide groove part and the sliding part from interfering with other parts of the camera module 10. Of course, the number of sliding parts and slide groove parts can be adjusted according to the specific structure, such as six, eight, etc., and the slide groove part and the sliding part can also be correspondingly arranged at other positions, as long as they can slide in cooperation, and there is no limitation here.

[0094] In addition, if Figure 1 to Figure 3As shown, the camera module 10 also includes a shell 4, a third fixed frame 13 is fixed to the shell 4, and is surrounded by the shell 4 to form a accommodating space, and components of the anti-shake mechanism 1, such as the first movable frame 11, the second movable frame 12, the anti-shake circuit board assembly 17 and other components are accommodated in the accommodating space, thereby improving the structural stability of the camera module 10, and can also prevent the camera module 10 from interfering with other components of the electronic device, thereby improving the anti-shake reliability.

[0095] In a specific embodiment, Figure 7 and Figure 8 As shown, the first slide groove portion 111 includes a first positioning groove 111a, and the first positioning groove 111a is used to cooperate with the first sliding portion 121 to limit the sliding of the first sliding portion 121 along the second direction Y. The second slide groove portion 122 includes a second positioning groove 122a, and the second positioning groove 122a is used to cooperate with the second sliding portion 131 to limit the sliding of the second sliding portion 131 along the first direction X.

[0096] In this embodiment, Figure 7 and Fig. 9 As shown, the first positioning groove 111a cooperates with the first sliding part 121 to prevent the first sliding part 121 from sliding in the first positioning groove 111a along the second direction Y, thereby preventing the first moving frame 11 from being displaced in the second direction Y relative to the second moving frame 12, and the second positioning groove 122a cooperates with the second sliding part 131 to prevent the second sliding part 131 from sliding in the second positioning groove 122a along the first direction X, thereby preventing the second moving frame 12 from being displaced in the first direction X relative to the third fixed frame 13, so that the first moving frame 11 can only be displaced in the first direction X relative to the second moving frame 12, and the second moving frame 12 can only be displaced in the second direction Y relative to the third fixed frame 13, thereby avoiding motion crosstalk, reducing the moving inclination angle, improving the displacement accuracy of the first moving frame 11 and the second moving frame 12, and providing a high anti-shake effect of the camera module 10.

[0097] In a specific embodiment, Figure 7 to Figure 9 As shown, the first positioning groove 111a and the second positioning groove 122a are V-shaped grooves or trapezoidal grooves.

[0098] In this embodiment, Figure 7 to Figure 9As shown, the openings of the V-shaped groove and the trapezoidal groove gradually increase along the thickness direction Z. When the first sliding part 121 and the second sliding part 131 cooperate with the V-shaped groove or the trapezoidal groove for support along the Z direction, the first sliding part 121 and the second sliding part 131 will be located at a position where the opening of the V-shaped groove or the trapezoidal groove is smaller, thereby limiting the displacement of the first sliding part 121 and the second sliding part 131 along the non-extension direction of the V-shaped groove or the trapezoidal groove, thereby avoiding the first moving frame 11 relative to the second moving frame 12 and the second moving frame 12 relative to the third fixed frame 13. The displacement in a non-preset direction is avoided, and the first sliding part 121 and the second sliding part 131 are accurately positioned. The structure of the V-shaped groove and the trapezoidal groove is simple, which is convenient for mass production and manufacturing, and can further reduce the complexity of the mechanism of the camera module 10 and save manufacturing costs.

[0099] Among them, Figure 7 to Figure 9 In the specific embodiment shown, the first positioning groove 111a and the second positioning groove 122a are V-shaped grooves, which can further reduce the manufacturing difficulty and improve the production efficiency. Of course, the first positioning groove 111a can also be a V-shaped groove, and the second positioning groove 122a can be a trapezoidal groove, or the first positioning groove 111a and the second positioning groove 122a can also be other shapes, as long as they can limit the displacement of the first sliding part 121 and the second sliding part 131 in the non-extension direction in the first positioning groove 111a and the second positioning groove 122a, and there is no limitation here.

[0100] In a specific embodiment, Figure 7 , Figure 8 and Fig.10 As shown, the first slide groove portion 111 also includes a first slide groove 111b, and the second slide groove portion 122 also includes a second slide groove 122b. Along the second direction Y, the width of the first slide groove 111b is greater than the width of the first sliding portion 121, and along the first direction X, the width of the second slide groove 122b is greater than the width of the second sliding portion 131.

[0101] In this embodiment, Figure 7 , Figure 8 and Fig.10 As shown, when the first movable frame 11, the second movable frame 12 and the third fixed frame 13 are in supporting contact along the thickness direction Z, the structural setting can increase the fault tolerance of the first slide groove portion 111 and the second slide groove portion 122, reduce the difficulty of matching between the first slide groove portion 111 and the first sliding portion 121 and between the second slide groove portion 122 and the second sliding portion 131, improve the qualified rate of the camera module 10, reduce the manufacturing difficulty, and save costs.

[0102] In a specific embodiment, Figure 7 , Figure 8 and Fig.10As shown, the first sliding groove 111b and the second sliding groove 122b are square grooves or U-shaped grooves.

[0103] In this embodiment, Figure 7 , Figure 8 and Fig.10 As shown, the opening dimensions of the square groove and the U-shaped groove along the thickness direction Z are the same. When the first movable frame 11, the second movable frame 12 and the third fixed frame 13 cooperate in supporting contact along the thickness direction Z, the square groove or the U-shaped groove and the first sliding part 121 and the second sliding part 131 can achieve a supporting and limiting function only in the thickness direction Z, and do not perform a limiting function in non-preset movement directions, thereby ensuring that the first sliding part 121 and the second sliding part 131 can move smoothly along the preset movement direction while increasing the fault tolerance of the first slide groove part 111 and the second slide groove part 122.

[0104] Among them, such as Figure 7 , Figure 8 , Fig.10 In the specific embodiment shown, the first sliding groove 111b and the second sliding groove 122b are square grooves, which can further reduce the manufacturing difficulty and improve the production efficiency. Of course, the first sliding groove 111b and the second sliding groove 122b can also be other structures as long as they can play a tolerance role, and there is no limitation here.

[0105] In addition, along the non-extending direction of the slide groove portion, the positioning groove can be arranged on one side of the frame sliding plane, and the sliding groove can be arranged on the other side of the sliding plane to ensure the tolerance effect. Figure 7 and Figure 8 In the illustrated embodiment, two first positioning grooves 111a and two first sliding grooves 111b are sequentially arranged along the second direction Y on the first moving frame 11, and two second positioning grooves 122a and two second sliding grooves 122b are sequentially arranged along the first direction X on the second moving frame 12.

[0106] In a specific embodiment, Figure 5 , Figure 6 , Fig.10 and Fig.11 As shown, the first sliding portion 121 and the second sliding portion 131 are semi-cylindrical structures or hemispherical structures.

[0107] In this embodiment, Figure 5 , Figure 6 , Fig.10 and Fig.11As shown, when the first sliding portion 121 and the second sliding portion 131 are semi-cylindrical structures or hemispherical structures, the contact area with the first slide groove portion 111 and the second slide groove portion 122 can be reduced, thereby reducing friction resistance and being easier to drive, thereby obtaining a faster response speed and improving the anti-shake efficiency of the camera module 10. The ends of the semi-cylindrical structure or the hemispherical structure are smooth curved surfaces, which are not prone to stress concentration and depression when in contact with the first slide groove portion 111 and the second slide groove portion 122, thereby making the first slide groove portion 111 and the second slide groove portion 122 have a greater bearing capacity, thereby improving the reliability of the camera assembly when it falls, and increasing the service life of the camera assembly.

[0108] Of course, the first sliding portion 121 and the second sliding portion 131 may also be other structures, which are not limited here.

[0109] In a specific embodiment, Figure 4 , Figure 5 , Figure 6 , Fig. 9 and Fig.10 As shown, the first movable frame 11, the second movable frame 12 and the third fixed frame 13 are all integrally formed by injection molding.

[0110] In this embodiment, Figure 4 , Figure 5 , Figure 6 , Fig. 9 and Fig.10 As shown, when the first movable frame 11, the second movable frame 12 and the third fixed frame 13 are all integrally injection molded structures, that is, the first movable frame 11, the second movable frame 12 and the third fixed frame 13 do not need other components for support, the components of the camera module 10 can be further reduced, the manufacturing cost can be further reduced, and the manufacturing efficiency can be improved.

[0111] In another specific embodiment, Figure 5 , Figure 6 and Fig.12 As shown, the first movable frame 11 also includes a first body 112, the second movable frame 12 also includes a second body 123, the third fixed frame 13 also includes a third body 132, the first sliding portion 121 is detachably connected to the first body 112 or the second body 123, and the second sliding portion 131 is detachably connected to the second body 123 or the third body 132.

[0112] In this embodiment, Figure 5 , Figure 6 and Fig.12As shown, this structure can further improve the matching tolerance of the first moving frame 11, the second moving frame 12 and the third fixed frame 13. The positions of the first sliding part 121 and the second sliding part 131 can be adjusted according to the actual structure during the preparation process, so that the first moving frame 11, the second moving frame 12 and the third fixed frame 13 can effectively match the support connection, thereby improving the manufacturing efficiency of the camera module 10. The first sliding part 121 and the second sliding part 131 can also be replaced when the first sliding part 121 and the second sliding part 131 are severely worn, thereby reducing the subsequent maintenance costs. In addition, this structural setting can make the material of the first sliding part 121 and the second sliding part 131 be other materials different from the first moving frame 11, the second moving frame 12 and the third fixed frame 13, so as to improve the wear resistance of the first sliding part 121 and the second sliding part 131 and extend their service life.

[0113] When the first sliding part 121 and the second sliding part 131 are made of different materials from the first moving frame 11, the second moving frame 12 and the third fixed frame 13, they can be cylindrical, semi-cylindrical, spherical, hemispherical and other structures made of stainless steel or other materials, and there is no limitation here. Of course, the first sliding part 121 and the second sliding part 131 can also be made of the same material as the first moving frame 11, the second moving frame 12 and the third fixed frame 13 to reduce manufacturing costs, and there is no limitation here.

[0114] In addition, in one embodiment, the first sliding portion 121 is connected to the first body 112 or the second body 123 by means of a snap connection, and the second sliding portion 131 is connected to the second body 123 or the third body 132 by means of a snap connection, etc., which is not limited here. Figure 2 In the specific embodiment shown, the second movable frame 12 is a structure in which the first sliding portion 121 is detachably connected to the second body 123, wherein the second body 123 may be provided with a clamping portion 124, so that the first sliding portion 121 can be clamped and connected with the clamping portion 124, thereby reducing the difficulty of assembling the first sliding portion 121. Similarly, the first movable frame 11 and the third fixed frame 13 may also be this structure, and of course may also be other combined structures, which are not limited here.

[0115] In another embodiment, a V-shaped or trapezoidal mounting groove that matches the first sliding portion 121 can be opened on the first body 112 or the second body 123, and the first sliding portion 121 is set in the mounting groove. At the same time, the V-shaped or trapezoidal mounting groove can also accurately locate the position of the first sliding portion 121 on the first body 112 or the second body 123 to prevent motion crosstalk. Similarly, the cooperation between the second sliding portion 131 and the second body 123 or the third body 132 can also be set in this way, which is not limited here.

[0116] In a specific embodiment, Figure 7 and Figure 8 As shown, lubricating material is disposed inside the first slide groove portion 111 and the second slide groove portion 122 , and the lubricating material is grease or lubricating oil.

[0117] In this embodiment, Figure 7 and Figure 8 As shown, adding lubricating material to the first slide groove portion 111 and the second slide groove portion 122 can further reduce the sliding friction between the first sliding portion 121 and the first slide groove portion 111 and the second sliding portion 131 and the second slide groove portion 122, thereby improving the response speed, reducing power consumption, and improving the control accuracy of the first moving frame 11 and the second moving frame 12.

[0118] Of course, the lubricating material may also be other lubricating materials such as graphite, which is not limited here.

[0119] In a specific embodiment, Figure 3 and Fig.13 As shown, the camera module 10 also includes a magnet 2, and the anti-shake mechanism 1 also includes an anti-shake coil 14. The anti-shake coil 14 is used to drive the magnet 2 to move along the first direction X or the second direction Y. The magnet 2 is fixed to the first movable frame 11, and the anti-shake coil 14 is fixed to the third fixed frame 13. The anti-shake coil 14 is arranged corresponding to the magnet 2.

[0120] In this embodiment, Figure 3 and Fig.13 As shown, when the anti-shake mechanism 1 of the camera module 10 is working, the coil 14 is energized to generate magnetic flux, thereby controlling the movement of the magnet 2, so that the magnet 2 can drive the first movable frame 11 to produce corresponding displacement. Therefore, this structure can provide driving force for the anti-shake mechanism 1, so that the first movable frame 11 and the second movable frame 12 of the anti-shake mechanism 1 can slide according to the shaking direction and displacement of the lens assembly, so as to compensate for the shaking direction and displacement of the lens assembly and realize the anti-shake function.

[0121] Among them, Fig.13 and Fig.14 As shown, a plurality of protrusions 133 may be provided on the third fixed frame 13 to facilitate the positioning, fixing and installation of the coil 14, and a recess may be provided on the first movable frame 11 to facilitate the fixing and installation of the magnet 2, thereby avoiding displacement of the magnet 2 and the coil 14 during shaking or falling, and improving the structural stability and falling reliability of the camera module 10.

[0122] In addition, if Figure 2 and Figure 3 The anti-shake circuit board assembly 17 is installed on the third fixing frame 13 , so that the electronic device can supply power to the anti-shake coil 14 through the anti-shake circuit board assembly 17 , thereby realizing the anti-shake function of the anti-shake mechanism 1 .

[0123] In a specific embodiment, Figure 3 and Fig.14 As shown, the anti-shake mechanism 1 further includes a magnetic sheet 16 , which is fixed to the side of the third fixed frame 13 away from the second movable frame 12 . The magnetic sheet 16 can attract the magnet 2 to press the third fixed frame 13 against the first movable frame 11 .

[0124] In this embodiment, Figure 3 and Fig.14 As shown, the magnetic sheet 16 can attract the magnet 2, so that the third fixed frame 13 is pressed against the first movable frame 11, so that the first movable frame 11, the second movable frame 12 and the third fixed frame 13 are in closer contact and fit in the thickness direction Z, the structure is more stable, and not easy to separate, thereby improving the structural stability of the camera module 10.

[0125] Among them, Figure 3 and Fig.14 As shown, there are two magnetic sheets 16, which improve the structural stability and reduce the interference of the magnetic sheet 14 on other imaging elements. Of course, the number of magnetic sheets 16 can also be 3 or 4, which can be set according to the specific structure and is not limited here.

[0126] In a specific embodiment, Figure 3 , Fig.14 and Fig.15 As shown, the anti-shake mechanism 1 also includes a position detection sensor 15, which is arranged on the third fixed frame 13 and is used to detect the magnetic field change of the magnet 2 to feedback the positions of the first movable frame 11 and the second movable frame 12. The position detection sensor 15 is a Hall element or a tunnel magnetoresistance effect sensor.

[0127] In this embodiment, Figure 3 , Fig.14 and Fig.15 As shown, the position detection sensor 15 is capable of detecting the magnetic field, and by detecting the change in the magnetic field of the magnet 2, the moving position of the magnet 2 is determined, thereby being able to determine the moving positions of the first moving frame 11 and the second moving frame 12, and feeding back their real-time position changes, so that the camera module 10 can control the current size of the coil 14 according to its real-time position change, so as to control the position of the first moving frame 11 and the second moving frame 12 through closed-loop control by driving the magnet 2, thereby further improving the control accuracy of the first moving frame 11 and the second moving frame 12.

[0128] Among them, the Hall element or the tunnel magnetoresistance effect sensor can detect the magnetic field, and has the advantages of simple structure, small size, fast feedback speed and low cost. When the position detection sensor 15 is a Hall element or a tunnel magnetoresistance effect sensor, it can reduce the space occupied by the position detection sensor 15 in the camera module 10, which is conducive to the miniaturization design of the camera module 10.

[0129] In addition, if Fig.15 As shown, the position detection sensor 15 can be arranged near the coil 14 to improve its detection efficiency. In addition, two position detection sensors 15 can be arranged to detect the movement along the first direction X and the second direction Y respectively to improve the detection accuracy.

[0130] In a specific embodiment, Figure 1 and Figure 2 As shown, the camera module 10 also includes an automatic focusing mechanism 3, which is used to achieve automatic focusing of the camera module 10. The automatic focusing mechanism 3 is arranged on a side of the first moving frame 11 away from the second moving frame 12.

[0131] In this embodiment, Figure 1 and Figure 2 As shown, an automatic focusing mechanism 3 is provided, which can enable the camera module 10 to achieve automatic focusing while preventing shaking, thereby ensuring the shooting effect of the electronic device in various motion modes and improving the user experience.

[0132] The camera module 10 further includes a lens bracket 32 ​​, which is mounted on the first movable frame 11 , and the lens assembly is mounted on the first movable frame 11 via the lens bracket 32 ​​.

[0133] In a specific embodiment, Figure 2 , Fig.16 and Fig.17 As shown, the automatic focusing mechanism 3 includes a focusing coil 31, which is arranged on the inner side of the magnet 2. The focusing coil 31 is an integrated annular coil or is formed by a combination of multiple coils.

[0134] In this embodiment, Figure 2 As shown, when the automatic focusing mechanism 3 is working, the focusing coil 31 is energized to generate magnetic flux, which interacts with the magnet 2, thereby driving the automatic focusing mechanism 3 to realize the automatic focusing function.

[0135] The focusing coil 31 is sleeved on the lens bracket 32, so as to drive the lens bracket 32 ​​to drive the lens assembly to move and realize automatic focusing.

[0136] According to the specific structure and usage scenario of the camera module 10, Fig.16 and Fig.17As shown, the magnet 2, the focusing coil 31, and the anti-shake coil 14 can be arranged in different ways. Fig.16 In the specific embodiment shown, there are four magnets 2, which are arranged in a single-sided monopole configuration, the focusing coil 31 is an integral annular coil arranged inside the magnet 2, and the anti-shake coil 14 is arranged at the bottom of the magnet 2. This structure has the advantages of simple structure, fewer components, and high compactness, which is conducive to the miniaturization design of electronic equipment and camera module 10. Fig.17 In another specific embodiment, there are eight magnets 2, and the magnets are set up with a single-sided bipolar configuration. The focusing coil 31 is formed by a combination of four coils and is arranged on the inner side of the magnet 2. The anti-shake coil 14 is arranged at the bottom of the magnet 2. In this structure, the current of the four coils constituting the focusing coil 31 can be controlled separately, and the control is more precise, thereby improving the control accuracy.

[0137] Of course, the magnet 2, the focusing coil 31 and the anti-shake coil 14 may also adopt other layouts, which are not limited here.

[0138] In addition, the automatic focusing mechanism 3 further includes a focusing circuit board assembly 33, so that the electronic device can supply power to the focusing coil 31 through the focusing circuit board assembly 33 to realize its automatic focusing function.

[0139] The embodiment of the present application also provides an electronic device, including a housing and the camera module 10 in any of the above embodiments, the camera module 10 is installed in the housing. Since the camera module 10 has the above technical effects, the electronic device including the camera module 10 also has corresponding technical effects, which will not be repeated here.

[0140] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A camera module, characterized in that: It comprises an anti-shake mechanism, and along the thickness direction of the anti-shake mechanism, the anti-shake mechanism comprises a first moving frame, a second moving frame and a third fixed frame connected in sequence; The first movable frame is used to install the lens assembly, one of the first movable frame and the second movable frame is provided with a first slide groove portion, and the other is provided with a first sliding portion, the first sliding portion can slide along the first slide groove portion, and the first slide groove portion extends along a first direction; One of the second movable frame and the third fixed frame is provided with a second slide groove portion, and the other is provided with a second sliding portion, the second sliding portion can slide along the second slide groove portion, and the second slide groove portion extends along a second direction; The first slide groove portion includes a first positioning groove, and the first positioning groove is used to cooperate with the first sliding portion to limit the sliding of the first sliding portion along the second direction; The second sliding groove portion includes a second positioning groove, and the second positioning groove is used to cooperate with the second sliding portion to limit the sliding of the second sliding portion along the first direction.

2. The camera module according to claim 1, characterized in that: The first positioning groove and the second positioning groove are V-shaped grooves or trapezoidal grooves.

3. The camera module according to claim 1, characterized in that: The first slide groove portion further includes a first slide groove, and the second slide groove portion further includes a second slide groove; Along the second direction, the width of the first sliding groove is greater than the width of the first sliding portion; Along the first direction, the width of the second sliding groove is greater than the width of the second sliding portion.

4. The camera module according to claim 3, characterized in that: The first sliding groove and the second sliding groove are square grooves or U-shaped grooves.

5. The camera module according to claim 1, characterized in that: The first sliding part and the second sliding part are semi-cylindrical structures or hemispherical structures.

6. The camera module according to claim 5, characterized in that: The first movable frame, the second movable frame and the third fixed frame are all integrally formed by injection molding.

7. The camera module according to claim 5, characterized in that: The first movable frame further includes a first body, the second movable frame further includes a second body, and the third fixed frame further includes a third body; The first sliding portion is detachably connected to the first body or the second body; The second sliding portion is detachably connected to the second body or the third body.

8. The camera module according to any one of claims 1 to 7, characterized in that: Lubricating material is provided inside the first chute portion and the second chute portion; The lubricating material is lubricating grease or lubricating oil.

9. The camera module according to any one of claims 1 to 7, characterized in that: The camera module further includes a magnet, and the anti-shake mechanism further includes an anti-shake coil, and the anti-shake coil is used to drive the magnet to move along the first direction or the second direction; The magnet is fixed to the first moving frame, the anti-shake coil is fixed to the third fixed frame, and the anti-shake coil is arranged corresponding to the magnet.

10. The camera module according to claim 9, characterized in that: The anti-shake mechanism further includes a magnetic sheet, which is fixed to a side of the third fixed frame away from the second movable frame; The magnetic attraction sheet can attract the magnet to press the third fixed frame against the first movable frame.

11. The camera module according to claim 9, characterized in that: The anti-shake mechanism further includes a position detection sensor, which is arranged on the third fixed frame and is used to detect the change of the magnetic field of the magnet to feedback the positions of the first moving frame and the second moving frame; The position detection sensor is a Hall element or a tunnel magnetoresistance effect sensor.

12. The camera module according to claim 9, characterized in that: The camera module also includes an automatic focusing mechanism, which is used to achieve automatic focusing of the camera module; The automatic focusing mechanism is arranged on a side of the first moving frame away from the second moving frame.

13. The camera module according to claim 12, characterized in that: The automatic focusing mechanism comprises a focusing coil, and the focusing coil is arranged inside the magnet; The focusing coil is an integrated annular coil or is formed by combining multiple coils.

14. An electronic device, characterized in that: It comprises a housing and a camera module as claimed in any one of claims 1 to 13, wherein the camera module is installed in the housing.

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