Camera driving device, camera module and electronic equipment

Abstract

The invention discloses a camera driving device, a camera module and electronic equipment, the camera driving device comprises a shell structure, and a carrier structure and an electromagnetic driving assembly which are arranged in the shell structure, the electromagnetic driving assembly comprises a guide part which extends along a first direction, and two ends of the guide part are respectively connected to a top wall and a bottom plate of the shell structure; a magnetic member; the coil structure is arranged corresponding to the magnetic part, one of the coil structure and the magnetic part is fixedly connected to the side wall of the carrier structure and slidably connected to the peripheral surface of the guide part, and the other one of the coil structure and the magnetic part is fixed to the guide part and spaced from the top wall and the bottom plate; the magnetic conducting piece is connected with the coil structure; and in the first direction, the length of the magnetic conducting piece is smaller than that of the guiding piece, and the length of the magnetic piece is smaller than that of the magnetic conducting piece. According to the camera driving device, the camera module and the electronic equipment, the internal noise of the camera driving device can be reduced, and the use experience of a user is ensured.

Description

Technical Field

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

[0002] During the focusing process of the camera of an electronic device, a slide motor is usually required to support the camera, and the carrier drives the camera to move along the extension direction of the slide bar of the slide motor. Since the slide bar is relatively smooth, the camera carrier continues to move along the slide bar when the slide bar motor is not powered, thereby generating noise that hits the motor housing.

[0003] At present, in order to solve the problem of impact noise, a flexible part or other structure is usually provided on the inner wall of the shell. However, the camera carrier will still collide with the flexible part and generate a certain amount of noise, thus affecting the user experience. Summary of the invention

[0004] The present application provides a camera driving device, a camera module and an electronic device, which can reduce the internal noise of the camera driving device and ensure the user experience.

[0005] The present application provides a camera driving device, which includes a shell structure, a carrier structure and an electromagnetic driving component arranged in the shell structure, and the electromagnetic driving component includes: a guide member extending along a first direction, with two ends respectively connected to the top wall and the bottom plate of the shell structure; a magnetic member; a coil structure, which is arranged corresponding to the magnetic member, one of the coil structure or the magnetic member is fixedly connected to the side wall of the carrier structure and slidably connected to the outer peripheral surface of the guide member, and the other is fixed to the guide member and spaced from the top wall and the bottom plate; a magnetic conductive member connected to the coil structure; wherein, in the first direction, the length of the magnetic conductive member is smaller than the length of the guide member, and the length of the magnetic member is smaller than the length of the magnetic conductive member.

[0006] As the camera driving device above, in the first direction, the magnetic member is fixedly connected to the carrier structure, the guide member is sleeved on the outer circumference of the magnetic conductive member, and the position of the magnetic conductive member in the first direction is within the length range of the guide member.

[0007] As mentioned above, the camera driving device, wherein the guide member, the magnetic member and the coil structure are all hollow tubular structures, the magnetic member is fixed to the side wall of the carrier structure, the magnetic member can be slidably mounted on the outer peripheral surface of the guide member, and the coil structure is arranged inside the guide member.

[0008] In the camera driving device as above, in the first direction, the length of the coil structure is equal to the length of the guide member, and the guide member is sleeved on the outer circumference of the coil structure.

[0009] In the camera driving device as described above, the magnetic conductive member is a columnar structure, and the coil structure is sleeved on the outer circumference of the magnetic conductive member and fixedly connected to the magnetic conductive member.

[0010] In the camera driving device as above, the coil structure is sleeved on the outer peripheral surface of the magnetic conductive part, the magnetic conductive part is slidably installed on the guide part, and the coil structure is fixed to the side wall of the carrier structure, and the magnetic part is fixed to the guide part.

[0011] As described above, the camera driving device, wherein the guide member, the coil structure and the magnetic conductive member are all hollow tubular structures. Along the first direction, the length of the coil structure is smaller than the length of the guide member. The magnetic conductive member is slidably mounted on the outer peripheral surface of the guide member, and the magnetic member is fixedly arranged in the guide member.

[0012] As above, the camera driving device has at least one recessed mounting portion on the side wall of the carrier structure, and at least one mounting portion is arranged in one-to-one correspondence with at least one electromagnetic driving component. The shape of each mounting portion is adapted to the shape of the magnetic part or coil structure of the corresponding electromagnetic driving component, and the magnetic part or coil structure is fixedly connected in the corresponding mounting portion.

[0013] On the other hand, the present application also provides a camera module, which includes the above-mentioned camera driving device, and the camera module also includes a camera, and the camera is installed on a carrier structure of the camera driving device, and the carrier structure can drive the camera to move in a first direction.

[0014] On the other hand, the present application also provides an electronic device, which includes the above-mentioned camera module.

[0015] The camera driving device of the present application includes a shell structure, a carrier structure arranged in the shell structure, and at least one electromagnetic driving component, wherein the electromagnetic driving component includes a guide member, a magnetic member, a coil structure and a magnetic conductive member, wherein the two ends of the guide member are respectively connected to the top wall and the bottom plate of the shell structure, and can guide the carrier structure to move up and down along a first direction in the shell structure. The magnetic member and the coil structure are arranged correspondingly, and one of them is fixedly connected to the side wall of the carrier structure and slidably connected to the outer peripheral surface of the guide member. When the coil structure is energized, an electromagnetic force is generated between the magnetic member and the coil structure and relative movement occurs. The one fixed to the carrier structure will drive the carrier structure to slide along the extension direction of the guide member, so that the carrier structure can drive the camera to move along the first direction to achieve the lifting and focusing of the camera.

[0016] The other of the magnetic member and the coil structure is fixed to the guide member. When the coil structure is not energized, the magnetic member and the magnetic conductive member have a mutually attractive magnetic field force. Since the magnetic member and the magnetic conductive member are separated from the top wall and the bottom plate of the shell structure and will not contact the top wall and the bottom plate of the shell structure, when the coil structure is energized, the magnetic member and the magnetic conductive member move relative to each other along a first direction, causing misalignment between the two. Under the strong magnetic conductivity of the magnetic conductive member, there is a strong attraction between the magnetic member and the magnetic conductive member. Since the length of the magnetic conductive member is smaller than the length of the guide member, and the length of the magnetic member is smaller than the length of the magnetic conductive member, after the misalignment occurs, the magnetic conductive member prevents the magnetic member or the coil structure from continuing to drive the carrier structure to move toward the top wall and the bottom plate, thereby avoiding the carrier structure from hitting the top wall and the bottom plate of the shell structure, reducing the internal noise of the camera drive device, and ensuring the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 An exploded diagram of a camera driving device according to an embodiment of the present application;

[0019] Figure 2 A cross-sectional view of a camera driving device according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the assembly of the guide member and the coil structure of the camera driving device according to an embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of assembling the magnetic component and the carrier structure of the camera driving device according to an embodiment of the present application;

[0022] Figure 5 A cross-sectional view of a second camera driving device according to an embodiment of the present application;

[0023] Figure 6 A cross-sectional view of a third camera driving device according to an embodiment of the present application.

[0024] Description of Figure Numbers:

[0025] 10. Guide member; 20. Magnetic member; 30. Coil structure; 40. Magnetic conductive member;

[0026] 100, housing structure; 110, top wall; 120, bottom plate; 121, welding foot; 200, carrier structure; 210, side wall; 220, mounting portion; 300, electromagnetic drive assembly;

[0027] X, first direction. DETAILED DESCRIPTION

[0028] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0029] like Figures 1 to 6 As shown, an embodiment of the present application provides a camera driving device, which includes a shell structure 100, a carrier structure 200 arranged in the shell structure 100, and at least one electromagnetic driving component 300, the electromagnetic driving component 300 includes: a guide member 10, extending along a first direction X, and having two ends respectively connected to the top wall 110 and the bottom plate 120 of the shell structure 100; a magnetic member 20; a coil structure 30, which is arranged corresponding to the magnetic member 20, one of the coil structure 30 or the magnetic member 20 is fixedly connected to the side wall 210 of the carrier structure 200 and slidably connected to the outer peripheral surface of the guide member 10, and the other is fixed to the middle part of the guide member 10; a magnetic conductive member 40, which is fixedly connected to the coil structure 30; wherein, in the first direction X, the length of the magnetic conductive member 40 is less than the length of the guide member 10, and the length of the magnetic member 20 is less than the length of the magnetic conductive member 40.

[0030] It should be noted that the first direction X is Figure 2 In the vertical direction, when the camera driving device is installed in an electronic device, the first direction X is the thickness direction of the electronic device, that is, the moving direction of the camera during the focusing process.

[0031] In specific implementation, the camera driving device of the present application includes a shell structure 100, a carrier structure 200 arranged in the shell structure 100, and at least one electromagnetic driving component 300, the electromagnetic driving component 300 includes a guide member 10, a magnetic member 20, a coil structure 30 and a magnetic conductive member 40, wherein the two ends of the guide member 10 are respectively connected to the top wall 110 and the bottom plate 120 of the shell structure 100, and can guide the carrier structure 200 to move up and down along the first direction X in the shell structure 100. The magnetic member 20 and the coil structure 30 are arranged correspondingly, and one of them is fixedly connected to the side wall 210 of the carrier structure 200 and slidably connected to the outer peripheral surface of the guide member 10. When the coil structure 30 is energized, an electromagnetic force is generated between the magnetic member 20 and the coil structure 30 and relative movement occurs. The one fixed to the carrier structure 200 will drive the carrier structure 200 to slide along the extension direction of the guide member 10, so that the carrier structure 200 can drive the camera to move along the first direction X to achieve the lifting and focusing of the camera.

[0032] The other of the magnetic member 20 and the coil structure 30 is fixed to the middle of the guide member 10. When the coil structure 30 is not powered on, the magnetic member 20 and the magnetic conductive member 40 have a magnetic field force that attracts each other. Since the magnetic member 20 and the magnetic conductive member 40 are separated from the top wall 110 and the bottom plate 120 of the shell structure 100 and do not contact the top wall 110 and the bottom plate 120, when the coil structure 30 is powered on, the magnetic member 20 and the magnetic conductive member 40 move relative to each other along the first direction X, and a misalignment occurs between the two. Under the strong magnetic conductive effect of the magnetic conductive member 40, the magnetic member 20 and the magnetic conductive member 40 are displaced. It has a strong attraction. Since the length of the magnetic component 40 is smaller than the length of the guide component 10, and the length of the magnetic component 20 is smaller than the length of the magnetic component 40, after misalignment occurs, the magnetic component 40 prevents the magnetic component 20 or the coil structure 30 from continuing to drive the carrier structure 200 to move toward the top wall 110 and the bottom plate 120, so that the carrier structure 200 can be maintained in a position close to the middle of the shell structure 100, thereby avoiding the carrier structure 200 from hitting the top wall 110 and the bottom plate 120 of the shell structure 100, reducing the internal noise of the camera drive device, and ensuring the user experience.

[0033] Specifically, Figure 1 As shown, through holes for the camera to pass through are provided at the center positions of the top wall 110 and the bottom plate 120 of the shell structure 100, so that when the carrier structure 200 carries the camera to move along the first direction X, the camera can pass through the through holes to perform shooting operations.

[0034] Specifically, the magnetic conductive member 40 is made of a metal material with strong magnetic conductivity, and the metal material with strong magnetic conductivity includes but is not limited to pure iron, silicon steel or low carbon steel.

[0035] like Figures 1 to 4As shown, the camera driving device of the embodiment of the present application, wherein the guide member 10, the magnetic member 20 and the coil structure 30 are all tubular structures with hollow interiors, the magnetic member 20 is fixed to the side wall 210 of the carrier structure 200, the magnetic member 20 can be slidably mounted on the outer peripheral surface of the guide member 10, and the coil structure 30 is arranged inside the guide member 10. The sleeve arrangement between the magnetic member 20, the guide member 10 and the coil structure 30 can not only ensure the relative sliding between the magnetic member 20 and the guide member 10, but also reduce the space occupied by the overall electromagnetic driving assembly 300 in the camera driving device.

[0036] In specific implementation, in an embodiment of the present application, the magnetic part 20 is fixed to the side wall 210 of the carrier structure 200, the guide part 10, the magnetic part 20 and the coil structure 30 are all tubular structures with hollow interiors, the outer surface of the magnetic part 20 is fixedly connected to the carrier structure 200, and the magnetic part 20 can be slidably mounted on the outer circumferential surface of the guide part 10, that is, the inner surface of the magnetic part 20 is slidably connected to the outer surface of the guide part 10, and the coil structure 30 is arranged inside the guide part 10. After the coil structure 30 is energized, an interactive magnetic force is generated between the coil structure 30 and the magnetic part 20. Since the coil structure 30 is fixed in the guide part 10, the magnetic part 20 can drive the carrier structure 200 to slide along the extension direction of the guide part 10, thereby realizing the up and down movement of the carrier structure 200 along the first direction X.

[0037] like Figure 2 As shown, the camera driving device of the embodiment of the present application, wherein the magnetic member 20 is fixedly connected to the carrier structure 200, the guide member 10 is sleeved on the outer peripheral surface of the magnetic conductive member 40, and the position of the magnetic conductive member 40 in the first direction X is within the length range of the guide member 10, that is, the magnetic conductive member 40 will not protrude from both ends of the guide member 10.

[0038] In specific implementation, the magnetic member 20 is fixed to the carrier structure 200, so that the magnetic member 20 can drive the carrier structure 200 to move along the first direction X under the driving action of the electromagnetic force of the coil structure 30. If the current in the coil structure 30 is too large, resulting in a large electromagnetic force on the magnetic member 20, the magnetic member 20 will drive the carrier structure 200 to move a long distance. The guide member 10 is sleeved on the outer peripheral surface of the magnetic conductive member 40. After the magnetic member 20 moves beyond the range of the magnetic conductive member 40, the magnetic field generated by the magnetic conductive member 40 can attract the magnetic member 20 and the carrier structure 200 to a position opposite to it. Since the position of the magnetic conductive member 40 in the first direction X is within the length range of the guide member 10, the magnetic member 20 will not drive the carrier structure 200 beyond the length range of the guide member 10 under the limiting action of the magnetic conductive member 40, and the carrier structure 200 will not hit the top wall 110 and the bottom plate 120, thereby reducing the internal noise of the camera driving device.

[0039] Moreover, in the first direction X, the length of the magnetic component 20 is smaller than the length of the magnetic conductive component 40, so that after a small misalignment occurs between the magnetic component 20 and the magnetic conductive component 40, since the magnetic component 20 is shorter as a whole and the misalignment length has a larger ratio to the overall length of the magnetic component 20, the magnetic conductive component 40 can more easily attract the magnetic component 20 back to a position close to the middle, thereby preventing the magnetic component 20 and the carrier structure 200 from being separated from the magnetic force of the magnetic conductive component 40 and being unable to return to the middle position.

[0040] like Figure 2 As shown, the camera driving device of the embodiment of the present application, wherein in the first direction X, the length of the coil structure 30 is equal to the length of the guide member 10 , and the guide member 10 is sleeved on the outer circumferential surface of the coil structure 30 .

[0041] In a specific implementation, the coil structure 30 is configured as a columnar structure having a length equal to that of the guide member 10, so that the coil structure 30 has a sufficient volume. When the coil structure 30 is energized, it can generate sufficient electromagnetic force on the magnetic member 20 to drive the magnetic member 20 and the carrier structure 200 to move freely along the first direction X, thereby achieving different focusing effects of the camera. Moreover, the directions of the internal energized currents of the coil structure 30 are different, so that the magnetic member 20 can be driven to slide in opposite directions in the first direction X.

[0042] Specifically, the guide member 10 is a metal structure, which supports the coil structure 30. In the radial direction of the guide member 10, the thickness of the guide member 10 is less than the thickness of the coil structure 30, which provides a layout space for fixing the coil structure 30. In addition, the guide member 10 occupies a small volume inside the shell structure 100, thereby realizing the lightweight and miniaturization of the camera drive device.

[0043] Optionally, the length of the coil structure 30 may be slightly smaller than the length of the guide member 10 , as long as the coil structure 30 can drive the magnetic member 20 .

[0044] like Figure 2 As shown, in the camera driving device of the embodiment of the present application, the magnetic conductive component 40 is a columnar structure, and the coil structure 30 is sleeved on the outer peripheral surface of the magnetic conductive component 40 and fixedly connected to the magnetic conductive component 40.

[0045] In specific implementation, the magnetic conductive member 40 is a columnar structure fixed inside the coil structure 30. The setting of the columnar structure ensures that the magnetic conductive member 40 has a sufficient length in the first direction X and has a sufficient volume, ensuring the strong magnetic conductive effect of the magnetic conductive member 40, so that the magnetic conductive member 40 can have sufficient attraction to the magnetic member 20, and avoid the carrier structure 200 connected to the magnetic member 20 from colliding with the top wall 110 and the bottom plate 120. In addition, the magnetic conductive member 40 with a columnar structure is easy to fix. It is set inside the tubular coil structure 30, which reduces the overall volume of the electromagnetic drive assembly 300. There is no need to set up additional layout space for the magnetic conductive member 40. The nested arrangement of multiple parts makes the maximum diameter of the electromagnetic drive assembly 300 as a whole the diameter of the magnetic member 20, realizing the lightweight and miniaturization of the camera drive device.

[0046] Specifically, the magnetic conductive part 40 is a uniform columnar structure, and the magnetic part 20 and the coil structure 30 are also uniform tubular structures, thereby ensuring the stability of the magnetic part 20 and the coil structure 30 driven by electromagnetic force, and also ensuring the stability of the magnetic part 20 and the magnetic conductive part 40 driven by magnetic force.

[0047] Specifically, the fixation between the magnetic part 20 and the carrier structure 200, the fixation between the magnetic conductive part 40 and the coil structure 30, and the fixation between the coil structure 30 and the guide part 10 are all performed by dispensing glue. Such a process can ensure the stability of the connection between each other, and the process is simple and reduces the process steps.

[0048] like Figure 5 As shown, the camera driving device of the second embodiment of the present application, wherein the magnetic conductive component 40 is a tubular structure with a hollow interior, and the guide component 10 is sleeved on the outer circumferential surface of the magnetic conductive component 40 and fixedly connected to the magnetic conductive component 40.

[0049] During specific implementation, the magnetic conductive component 40 is fixed inside the guide component 10 and fixed to the middle part of the guide component 10 in the first direction X. Therefore, the guide component 10 provides a fixing base for the magnetic conductive component 40. When the magnetic component 20 is driven by the electromagnetic force generated by the coil structure 30, if the magnetic component 20 is misaligned with the magnetic conductive component 40 in the first direction X, the magnetic field force between the magnetic conductive component 40 and the magnetic component 20 can attract the magnetic component 20 back to a position close to the middle, preventing the magnetic component 20 from driving the carrier structure 200 to collide with the top wall 110 and the bottom plate 120, thereby reducing the internal noise of the camera driving device.

[0050] like Figure 5 As shown, a camera driving device according to the second embodiment of the present application is shown, wherein along the first direction X, the length of the coil structure 30 is smaller than the length of the guide member 10 , and the magnetic conductive member 40 is sleeved on the outer peripheral surface of the coil structure 30 and is slidably connected to the coil structure 30 .

[0051] In specific implementation, the length of the coil structure 30 is less than the length of the guide member 10, so the overall volume of the coil structure 30 is small, saving the setting cost of the coil structure 30, and the coil structure 30 can be slidably arranged in the magnetic conductive member 40, and the coil structure 30 can slide along the first direction X under external drive, so after the coil structure 30 is energized, if the magnetic member 20 drives the carrier structure 200 to move a long distance, after the electromagnetic force between the magnetic member 20 and the coil structure 30 is weakened, the coil structure 30 can slide along the first direction X, thereby approaching the magnetic member 20, and re-generating a strong electromagnetic force between the magnetic member 20, so as to continue to drive the magnetic member 20 and the carrier structure 200 to move along the first direction X, and complete the focusing action of the camera. In this way, by controlling the moving distance of the coil structure 30, the moving distance of the carrier structure 200 is precisely controlled. Among them, the driving member of the coil structure 30 includes but is not limited to driving structures such as electric rods or electro-deformable members, which can drive the coil structure 30 to slide along the first direction X.

[0052] Moreover, in this embodiment, the magnetic part 20, the guide part 10, the magnetic conductive part 40 and the coil structure 30 can also be nested in sequence, so that the maximum diameter of the electromagnetic driving component 300 as a whole is the diameter of the magnetic part 20, thereby achieving lightweight and miniaturization of the camera driving device.

[0053] like Figure 6 As shown, in the third embodiment of the present application, the coil structure 30 of the camera driving device is a tubular structure fixed to the side wall 210 of the carrier structure 200, the coil structure 30 can be slidably sleeved on the outer peripheral surface of the guide member 10, the magnetic member 20 is arranged inside the guide member 10 and fixed to the middle part of the guide member 10, and the magnetic conductive member 40 is fixedly connected to the coil structure 30. When the coil structure 30 is energized, an interactive magnetic force is generated between the coil structure 30 and the magnetic member 20, and the coil structure 30 drives the carrier structure 200 and the magnetic conductive member 40 to move. The guide members 40 slide together along the extension direction of the guide member 10 to realize the up and down movement of the carrier structure 200 along the first direction X, and after the magnetic member 40 and the magnetic member 20 are misaligned in the first direction X, the magnetic member 20 will form a strong magnetic force on the magnetic member 40, preventing the magnetic member 40 and the connected carrier structure 200 from continuing to move in the direction away from the magnetic member 20, thereby avoiding the carrier structure 200 from hitting the top wall 110 and the bottom plate 120 of the shell structure 100, thereby reducing the internal noise of the camera driving device.

[0054] like Figure 4As shown, a camera driving device of an embodiment of the present application, wherein a side wall 210 of a carrier structure 200 has at least one recessed mounting portion 220, at least one mounting portion 220 is arranged in a one-to-one correspondence with at least one electromagnetic driving component 300, and a shape of each mounting portion 220 is adapted to a shape of a magnetic member 20 or a coil structure 30 of a corresponding electromagnetic driving component 300, and the magnetic member 20 or the coil structure 30 is fixedly connected in the corresponding mounting portion 220.

[0055] During specific implementation, the shape of the outer peripheral surface of the magnetic part 20 or the coil structure 30 is adapted to the shape of the surface of the mounting part 220. When fixed by the glue dispensing process, the magnetic part 20 or the coil structure 30 can be completely attached to the mounting part 220, thereby making the fixation between the magnetic part 20 or the coil structure 30 and the mounting part 220 more stable, avoiding the situation where the magnetic part 20 or the coil structure 30 falls off from each other when the mounting part 220 moves, thereby ensuring the focus stability of the camera.

[0056] Specifically, the carrier structure 200 is a square structure having four side walls 210 and four mounting portions 220. The four mounting portions 220 are respectively arranged at the four corners of the carrier structure 200, that is, at the angles formed between adjacent side walls 210 of the carrier structure 200. The inner surface of the mounting portion 220 is an annular shape with an opening. The outer peripheral surface of the magnetic part 20 is adapted to the inner surface of the mounting portion 220, thereby achieving a stable connection effect. In addition, the four corners of the carrier structure 200 are fixedly connected to the magnetic part 20 of the electromagnetic drive component 300, further improving the connection stability between the electromagnetic drive component 300 and the carrier structure 200, and ensuring the stability of the carrier structure 200 in focusing the camera.

[0057] Specifically, the edge of the bottom plate 120 of the shell structure 100 also has a welding foot 121, which is connected to an external power supply and can provide positive and negative voltages to the electromagnetic drive component 300 inside the shell structure 100, thereby energizing the coil structure 30 to control the focus action of the camera.

[0058] The embodiment of the present application also provides a camera module, which includes the above-mentioned camera driving device. The camera module also includes a camera, and the camera is installed on a carrier structure 200 of the camera driving device. The carrier structure 200 can drive the camera to move in a first direction X.

[0059] An embodiment of the present application also provides an electronic device, which includes the above-mentioned camera module.

[0060] In a specific implementation, the electronic device includes the above-mentioned camera module, the camera module includes the above-mentioned camera driving device and the camera, the camera driving device includes a shell structure 100 and a carrier structure 200 arranged in the shell structure 100 and at least one electromagnetic driving component 300, the camera is installed on the carrier structure 200 of the camera driving device, the electromagnetic driving component 300 includes a guide member 10, a magnetic member 20, a coil structure 30 and a magnetic conductive member 40, wherein the two ends of the guide member 10 are respectively connected to the top wall 110 and the bottom plate 120 of the shell structure 100, and can control the carrier structure 200 in The shell structure 100 moves up and down along the first direction X to play a guiding role. The magnetic part 20 and the coil structure 30 are arranged correspondingly, and one of them is fixedly connected to the side wall 210 of the carrier structure 200 and slidably connected to the outer peripheral surface of the guide part 10. When the coil structure 30 is energized, an electromagnetic force is generated between the magnetic part 20 and the coil structure 30 and relative movement occurs. The one fixed to the carrier structure 200 will drive the carrier structure 200 to slide along the extension direction of the guide part 10, so that the carrier structure 200 can drive the camera to move along the first direction X to achieve the lifting and focusing of the camera.

[0061] The other of the magnetic member 20 and the coil structure 30 is fixed to the middle of the guide member 10. When the coil structure 30 is not powered on, the magnetic member 20 and the magnetic conductive member 40 have a magnetic field force that attracts each other. Since the magnetic member 20 and the magnetic conductive member 40 are separated from the top wall 110 and the bottom plate 120 of the shell structure 100 and do not contact the top wall 110 and the bottom plate 120, when the coil structure 30 is powered on, the magnetic member 20 and the magnetic conductive member 40 move relative to each other along the first direction X, and a misalignment occurs between the two. Under the strong magnetic conductive effect of the magnetic conductive member 40, the magnetic member 20 and the magnetic conductive member 40 are displaced. It has a strong attraction. Since the length of the magnetic component 40 is smaller than the length of the guide component 10, and the length of the magnetic component 20 is smaller than the length of the magnetic component 40, after misalignment occurs, the magnetic component 40 prevents the magnetic component 20 or the coil structure 30 from continuing to drive the carrier structure 200 to move toward the top wall 110 and the bottom plate 120, so that the carrier structure 200 can be maintained in a position close to the middle of the shell structure 100, thereby avoiding the carrier structure 200 from hitting the top wall 110 and the bottom plate 120 of the shell structure 100, reducing the internal noise of the camera drive device, and ensuring the user experience.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0063] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A camera driving device, It is characterized in that The invention comprises a housing structure (100), a carrier structure (200) and an electromagnetic drive component (300) arranged in the housing structure (100), wherein the electromagnetic drive component (300) comprises: A guide member (10) extending along a first direction (X), with two ends respectively connected to a top wall (110) and a bottom plate (120) of the housing structure (100); Magnetic member (20); A coil structure (30) arranged corresponding to the magnetic member (20), wherein one of the coil structure (30) or the magnetic member (20) is fixedly connected to the side wall (210) of the carrier structure (200) and slidably connected to the outer peripheral surface of the guide member (10), and the other is fixed to the guide member (10) and spaced apart from both the top wall (110) and the bottom plate (120); A magnetic conductive member (40) connected to the coil structure (30); Wherein, in the first direction (X), the length of the magnetic conductive member (40) is smaller than the length of the guide member (10), and the length of the magnetic member (20) is smaller than the length of the magnetic conductive member (40).

2. The camera driving device according to claim 1, It is characterized in that The magnetic member (20) is fixedly connected to the carrier structure (200), the guide member (10) is sleeved on the outer peripheral surface of the magnetic conductive member (40), and the position of the magnetic conductive member (40) in the first direction (X) is within the length range of the guide member (10).

3. The camera driving device according to claim 1, It is characterized in that The guide member (10), the magnetic member (20) and the coil structure (30) are all tubular structures with hollow interiors; the magnetic member (20) is fixed to the side wall (210) of the carrier structure (200); the magnetic member (20) is slidably mounted on the outer peripheral surface of the guide member (10); and the coil structure (30) is arranged inside the guide member (10).

4. The camera driving device according to claim 3, It is characterized in that In the first direction (X), the length of the coil structure (30) is equal to the length of the guide member (10), and the guide member (10) is sleeved on the outer peripheral surface of the coil structure (30).

5. The camera driving device according to claim 4, It is characterized in that The magnetic conductive member (40) is a columnar structure, and the coil structure (30) is sleeved on the outer peripheral surface of the magnetic conductive member (40) and is fixedly connected to the magnetic conductive member (40).

6. The camera driving device according to claim 1, It is characterized in that The coil structure (30) is sleeved on the outer peripheral surface of the magnetic conductive part (40), the magnetic conductive part (40) is slidably mounted on the guide part (10), and the coil structure (30) is fixed to the side wall (210) of the carrier structure (200), and the magnetic part (20) is fixed to the guide part (10).

7. The camera driving device according to claim 6, It is characterized in that The guide member (10), the coil structure (30) and the magnetic conductive member (40) are all tubular structures with hollow interiors; along the first direction (X), the length of the coil structure (30) is smaller than the length of the guide member (10); the magnetic conductive member (40) is slidably mounted on the outer peripheral surface of the guide member (10); and the magnetic member (20) is fixedly arranged in the guide member (10).

8. The camera driving device according to claim 1, It is characterized in that The side wall (210) of the carrier structure (200) is provided with at least one recessed mounting portion (220), and at least one mounting portion (220) is arranged in a one-to-one correspondence with at least one electromagnetic drive component (300). The shape of each mounting portion (220) is adapted to the shape of the magnetic component (20) or the coil structure (30) of the corresponding electromagnetic drive component (300), and the magnetic component (20) or the coil structure (30) is fixedly connected to the corresponding mounting portion (220).

9. A camera module, It is characterized in that It comprises a camera driving device as described in any one of claims 1 to 8, wherein the camera module also comprises a camera, and the camera is installed on a carrier structure (200) of the camera driving device, and the carrier structure (200) can drive the camera to move in a first direction (X).

10. An electronic device, It is characterized in that Comprising the camera module as described in claim 9.

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