Camera motor, camera assembly and terminal equipment

Abstract

The invention provides a camera motor, a camera assembly and terminal equipment. The camera motor comprises a base and a lens mounting rack. The base is provided with a mounting surface, and the lens mounting rack can move on the mounting surface; the base has first magnetism, and the lens mounting rack has second magnetism; and the first magnetism is the same as the second magnetism, so that a gap is formed between the base and the lens mounting frame under the action of magnetic repulsive force. According to the camera motor provided by the invention, the magnetic repulsive force formed between the base and the lens mounting rack can be utilized to form a gap between the base and the lens mounting rack before the optical anti-shake function of the camera is started. Therefore, when the lens mounting rack is controlled to move relative to the base, friction between the lens mounting rack and the base can be avoided, so that chippings are avoided, and the quality of images shot by the camera is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to a camera motor, a camera assembly and a terminal device. Background Art

[0002] With the continuous development of science and technology, more and more terminal devices are equipped with camera components to realize functions such as taking photos and videos. The camera components usually have an auto focus function (AF) and an optical image stabilization function (OIS) to improve the quality of the captured images.

[0003] When the optical image stabilization function of some existing cameras is turned on, the lens mounting frame is prone to friction with the base to generate debris, thereby affecting the quality of the images captured by the camera. Summary of the invention

[0004] The present application provides a camera motor, a camera assembly and a terminal device, which can improve the quality of images captured by the camera.

[0005] Specifically, the present application is implemented through the following technical solutions:

[0006] On one hand, the present application provides a camera motor, comprising:

[0007] A base and a lens mounting frame; the base is provided with a mounting surface, and the lens mounting frame is movable on the mounting surface; the base has a first magnetism, and the lens mounting frame has a second magnetism; the first magnetism is the same as the second magnetism, so that a gap is formed between the base and the lens mounting frame under the action of magnetic repulsion.

[0008] Optionally, the base is provided with a first magnetic member, the first magnetic member includes a first magnetic pole; the lens mounting frame is provided with a second magnetic member, the second magnetic member includes a second magnetic pole; the first magnetic pole is arranged facing the second magnetic pole, and the polarity of the first magnetic pole is the same as that of the second magnetic pole.

[0009] Optionally, the area of ​​the first end face of the first magnetic pole facing the second magnetic pole is not equal to the area of ​​the second end face of the second magnetic pole facing the first magnetic pole; the lens mounting frame has a moving state; in the moving state, the projection of the smaller one of the first end face and the second end face on the mounting surface is always within the projection of the larger one on the mounting surface.

[0010] Optionally, the lens mounting bracket also has a stationary state; in the stationary state, the projection of the smaller one of the first end face and the second end face on the mounting surface is located at the center position of the projection of the larger one on the mounting surface.

[0011] Optionally, the camera motor further includes an optical anti-shake component; the optical anti-shake component includes a third magnetic component disposed on the base and a fourth magnetic component disposed on the lens mounting frame, and the third magnetic component cooperates with the fourth magnetic component;

[0012] The first magnetic component is spaced apart from the third magnetic component, and a first magnetic isolation component is disposed between the first magnetic component and the third magnetic component; the second magnetic component is spaced apart from the fourth magnetic component, and a second magnetic isolation component is disposed between the second magnetic component and the fourth magnetic component.

[0013] Optionally, the lens mounting bracket includes a bracket main body and a side bracket movable relative to the bracket main body in a direction perpendicular to the mounting surface; the side bracket is provided with the fourth magnetic part; the bracket main body is also provided with a magnetic matching part, and the fourth magnetic part cooperates with the magnetic matching part to achieve automatic focusing.

[0014] Optionally, the mounting surface is provided with a first mounting groove for mounting the first magnetic component, and the shape of the first mounting groove is adapted to the shape of the first magnetic component;

[0015] And / or, a second mounting groove for mounting the second magnetic member is provided on a side of the lens mounting frame facing the mounting surface, and a shape of the second mounting groove is adapted to a shape of the second magnetic member.

[0016] Optionally, the number of the first magnetic members is at least two, and the number of the second magnetic members is at least two; the first magnetic members are centrally symmetrically distributed about the base, and the second magnetic members are centrally symmetrically distributed about the lens mounting frame;

[0017] And / or, the first magnetic member is bonded to the base, and the second magnetic member is bonded to the lens mounting frame.

[0018] On the other hand, the present application also provides a camera assembly, including any camera motor as described above.

[0019] On the other hand, the present application also provides a terminal device, including any camera assembly as described above.

[0020] The technical solution provided by this application can achieve the following beneficial effects:

[0021] The present application provides a camera motor, a camera assembly and a terminal device. The camera motor can form a gap between the base and the lens mounting frame by using the magnetic repulsive force formed between the base and the lens mounting frame before the optical image stabilization function of the camera is turned on. Therefore, when the lens mounting frame is controlled to move relative to the base, friction between the lens mounting frame and the base can be avoided, thereby avoiding the generation of debris, and greatly improving the image quality captured by the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a camera motor shown in an exemplary embodiment of the present application.

[0023] Figure 2 1 is a front view of an assembly of a base and a lens mounting frame shown in an exemplary embodiment of the present application.

[0024] Figure 3 yes Figure 2 Enlarged view of point A.

[0025] Figure 4 It is a top view of the structure of a base shown in an exemplary embodiment of the present application.

[0026] Figure 5 1 is a top view of the structure of a lens mounting bracket shown in an exemplary embodiment of the present application.

[0027] Figure 6 It is a structural schematic diagram of the assembly of a base and a lens mounting frame shown in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0028] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments are only to present the concept of the present application and do not represent all implementations under the concept of the present application. Instead, they are only examples of devices and methods consistent with some aspects of the concept of the present application.

[0029] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. "Multiple" or "several" means two and more than two. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" are included, and the elements or objects listed after "include" or "include" and their equivalent elements or objects are included. Other elements or objects are not excluded in this application. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0030] The present application provides a terminal device, including a camera component, which can provide the terminal device with functions such as taking photos or recording videos. For example, the terminal device can be a mobile phone, a laptop computer, a tablet computer, a wearable device such as a smart watch, a camera, a video camera, a driving recorder, a drone, and other electronic devices with photo or video functions.

[0031] In one embodiment, the terminal device may include a housing and a camera assembly, a processor, a display screen, a memory, etc. disposed in the housing. The processor may be used to control the camera assembly to perform an auto focus function (AF) and an optical image stabilization function (OIS); the display screen is used to display an image or video captured by the camera assembly; and the memory may be used to store the image or video captured by the camera assembly.

[0032] The camera assembly has an auto focus function (AF) and an optical image stabilization function (OIS). Among them, the optical image stabilization function (OIS) can be used to eliminate imaging blur caused by the shaking of the terminal device to obtain a clearer image and improve the quality of the image captured by the camera. The shaking of the terminal device may be the vibration or rotation caused by the user holding the terminal device, or the vibration or rotation generated by a mobile device such as a vehicle carrying the terminal device during movement. In some embodiments, the camera assembly can be used as a rear camera of the terminal device. In other embodiments, the camera assembly can also be used as a front camera of the terminal device. Among them, the number of camera assemblies can be one or more.

[0033] In one embodiment, the camera assembly includes a lens. The lens has a light incident side and a light exiting side. The light incident side is the side close to the object to be photographed, also known as the object side. The light exiting side is the side close to the photosensitive component, also known as the image side. Exemplarily, the light incident side of the lens can face the front of the terminal device and be used as the front camera of the terminal device. Exemplarily, the light incident side of the lens can also face the back of the terminal device and be used as the rear camera of the terminal device.

[0034] In one embodiment, the camera assembly further includes a photosensitive component. Exemplarily, the photosensitive component, such as an image sensor, is located on the light-exiting side of the lens, and is used to receive incident light emitted from the light-exiting side of the lens, and convert the optical signal into an electrical signal to generate an image. The image sensor can then transmit the image to the processor for processing, and finally store the processed image in the memory.

[0035] In one embodiment, the camera assembly further includes a camera motor 10. Figure 1 and Figure 2 The camera motor 10 includes a base 11 and a lens mounting frame 12 for mounting a lens. The base 11 is provided with a mounting surface 111, and the lens mounting frame 12 is movable on the mounting surface 111. The base 11 has a first magnetism, and the lens mounting frame 12 has a second magnetism; the first magnetism is the same as the second magnetism, so that a gap is formed between the base 11 and the lens mounting frame 12 under the action of a magnetic repulsive force. Before the optical image stabilization function of the camera is turned on, the camera motor 10 can form a gap between the base 11 and the lens mounting frame 12 by using the magnetic repulsive force formed between the base 11 and the lens mounting frame 12. Therefore, when the lens mounting frame 12 is controlled to move relative to the base 11, friction between the lens mounting frame 12 and the base 11 can be avoided, thereby avoiding the generation of debris, and greatly improving the image quality captured by the camera.

[0036] See also Figures 3 to 5In one embodiment, the base 11 is provided with a first magnetic member 14, and the first magnetic member 14 includes a first magnetic pole 141. The lens mounting frame 12 is provided with a second magnetic member 15, and the second magnetic member 15 includes a second magnetic pole 151. The first magnetic pole 141 is arranged facing the second magnetic pole 151, and the polarity of the first magnetic pole 141 and the second magnetic pole 151 is the same. Exemplarily, the first magnetic pole 141 and the second magnetic pole 151 can both be S poles or both be N poles. Thus, the magnetic repulsive force formed between the first magnetic pole 141 of the first magnetic member 14 and the second magnetic pole 151 of the second magnetic member 15 can be used to form a gap between the base 11 and the lens mounting frame 12. In addition, by arranging the first magnetic pole 141 facing the second magnetic pole 151, a larger magnetic field can be generated when the first magnetic pole 141 and the second magnetic pole 151 interact with each other, so as to facilitate the formation of a larger gap between the lens mounting frame 12 and the base 11. In one embodiment, the first magnetic member 14 and the second magnetic member 15 can be permanent magnets, such as permanent magnets. Of course, the first magnetic member 14 and the second magnetic member 15 may also be electromagnets, such as electromagnets.

[0037] Please continue reading Figure 3 In one embodiment, the area of ​​the first end surface 1411 of the first magnetic pole 141 facing the second magnetic pole 151 is not equal to the area of ​​the second end surface 1511 of the second magnetic pole 151 facing the first magnetic pole 141; the lens mounting frame 12 has a moving state; in the moving state, the projection of the smaller one of the first end surface 1411 and the second end surface 1511 on the mounting surface 111 is always located within the projection of the larger one on the mounting surface 111. Therefore, in the process of the lens mounting frame 12 moving relative to the base 11, it can be ensured that the first magnetic pole 141 and the second magnetic pole 151 generate a stable magnetic field, thereby improving the matching stability between the lens mounting frame 12 and the base 11. In one embodiment, the lens mounting frame 12 also has a stationary state; in the stationary state, the projection of the smaller one of the first end surface 1411 and the second end surface 1511 on the mounting surface 111 is located at the center of the projection of the larger one on the mounting surface 111. Thus, when the lens mounting frame 12 moves in any direction relative to the base 11, the first magnetic pole 141 and the second magnetic pole 151 can generate a stable magnetic field. In one embodiment, the area of ​​the first end surface 1411 is greater than the area of ​​the second end surface 1511. Thus, the second magnetic pole 151 can reduce the installation space occupied by the lens mounting frame 12.

[0038] In one embodiment, the distance between the outer contour line of the first end surface 1411 and the outer contour line of the second end surface 1511 is greater than or equal to 80 μm and less than or equal to 150 μm. Thus, the movement stroke of the lens mounting frame 12 relative to the base 11 can be satisfied as much as possible to provide a relatively stable magnetic field.

[0039] In one embodiment, the camera motor 10 further includes an optical image stabilization component (not shown). The optical image stabilization component includes a third magnetic component disposed on the base 11 and a fourth magnetic component disposed on the lens mounting frame 12, and the third magnetic component cooperates with the fourth magnetic component. The first magnetic component 14 is spaced apart from the third magnetic component, and a first magnetic shielding component is disposed between the first magnetic component 14 and the third magnetic component; the second magnetic component 15 is spaced apart from the fourth magnetic component, and a second magnetic shielding component is disposed between the second magnetic component 15 and the fourth magnetic component. In this way, the magnetic field formed between the third magnetic component and the fourth magnetic component can be prevented from interfering with the magnetic field formed between the first magnetic component 14 and the second magnetic component 15.

[0040] See also Figure 6 In one embodiment, the lens mounting frame 12 includes a bracket body 121 and a side bracket 122 that can move relative to the bracket body 121 in a direction perpendicular to the mounting surface 111. Exemplarily, the number of the side brackets 122 is two, and the two side brackets 122 are respectively located on opposite sides of the bracket body 121. Of course, the number and installation positions of the side brackets 122 are not limited to this. In other embodiments, the bracket body 121 can be a square frame structure, and the side bracket 122 can be a bar structure. Of course, the shapes of the bracket body 121 and the side bracket 122 are not limited to this.

[0041] The bracket body 121 is used to install the lens, and the side bracket 122 is provided with a fourth magnetic member on the side facing the base 11. When the camera realizes the optical image stabilization function, the side bracket 122 can be relatively fixed with the bracket body 121. In one embodiment, the side bracket 122 and the bracket body 121 are relatively fixed by the first elastic member 16. Among them, one end of the first elastic member 16 is connected to the bracket body 121, such as by clamping, and the other end is connected to the side bracket 122, such as by clamping. Therefore, the setting of the first elastic member 16 can play a role in assisting the fixing of the bracket body 121 and the side bracket 122, and because the first elastic member 16 has a certain elasticity, when the side bracket 122 and the bracket body 121 need to move relative to each other, the first elastic member 16 can adaptively deform to a certain extent, thereby meeting the movement requirements of the side bracket 122 and the bracket body 121. Exemplarily, the second elastic member 17 can be a spring or a spring, but it is not limited to this.

[0042] When the camera realizes the optical image stabilization function, the interaction force formed between the third magnetic member and the fourth magnetic member, such as magnetic repulsion, can drive the bracket body 121 to move along the mounting surface 111 relative to the base 11. Exemplarily, the third magnetic member can be an electromagnet, such as an electromagnet; the fourth magnetic member can be a permanent magnet, such as a permanent magnet. Of course, in other embodiments, the third magnetic member can also be a permanent magnet, and the fourth magnetic member can also be an electromagnet.

[0043] In one embodiment, the bracket body 121 is further provided with a magnetic matching member (not shown), and the fourth magnetic member cooperates with the magnetic matching member to achieve automatic focus. In this embodiment, the side bracket 122 can move in a direction perpendicular to the mounting surface 111 relative to the bracket body 121. When the camera implements the autofocus function, the interaction force formed between the fourth magnetic member and the magnetic matching member, such as magnetic suction, drives the bracket body 121 to move in a direction perpendicular to the mounting surface 111 of the base 11 to achieve automatic focus.

[0044] See also Figure 2 and Figure 6 In one embodiment, the base 11 is further provided with a conductive welding sheet 18 for connecting to the PCD circuit board of the camera assembly. The base 11 and the side bracket 122 are contact-connected, for example, by snap-fitting, via a second elastic member 17. Thus, the side bracket 122 can be electrically connected to the PCD circuit board through the second elastic member 17 and the base 11, so that when the side bracket 122 is equipped with an electromagnet, it is used to power the electromagnet. In addition, since the second elastic member 17 has a certain elasticity, it can also limit the movement of the side bracket 122 and the bracket body 121 relative to the mounting surface 111 of the base 11 to a certain extent. Exemplarily, the second elastic member 17 can be a spring or a spring, but is not limited thereto.

[0045] In one embodiment, the mounting surface 111 is provided with a first mounting groove for mounting the first magnetic member 14, and the shape of the first mounting groove matches the shape of the first magnetic member 14. Thus, the first magnetic member 14 can be prevented from being assembled incorrectly. Exemplarily, the first magnetic member 14 can be partially embedded in the first mounting groove; of course, in other embodiments, the first magnetic member 14 can also be fully embedded in the first mounting groove to reduce the space occupied by the base 11 and reduce the overall thickness of the base 11.

[0046] In one embodiment, a second mounting groove for mounting the second magnetic member 15 is provided on one side of the lens mounting frame 12 facing the mounting surface 111, and the shape of the second mounting groove matches the shape of the second magnetic member 15. Thus, the second magnetic member 15 can be prevented from being assembled incorrectly. For example, the second magnetic member 15 can be partially embedded in the second mounting groove; of course, in other embodiments, the second magnetic member 15 can also be fully embedded in the second mounting groove to reduce the space occupied by the lens mounting frame 12 and reduce the overall thickness of the lens mounting frame 12.

[0047] See also Figure 4 and Figure 5In one embodiment, the number of the first magnetic members 14 is at least two, and the number of the second magnetic members 15 is at least two; the first magnetic members 14 are centrally symmetrically distributed about the base 11, and the second magnetic members 15 are centrally symmetrically distributed about the lens mounting frame 12. In this way, it can be ensured that the movement of the lens mounting frame 12 relative to the base 11 is more stable. Exemplarily, there are four first magnetic members 14, and the number of the second magnetic members 15 is four. Of course, the number of the first magnetic members 14 and the second magnetic members 15 can be adaptively adjusted according to actual production requirements. In one embodiment, the four first magnetic members 14 are respectively arranged at the four corners of the base 11, and the four second magnetic members 15 are respectively arranged at the four corners of the lens mounting frame 12. Of course, in other embodiments, the number of the first magnetic members 14 and the number of the second magnetic members 15 can also be 2, 3 or even more.

[0048] In one embodiment, the first magnetic member 14 is bonded to the base 11, and the second magnetic member 15 is bonded to the lens mounting frame 12. Thus, it is convenient to install the first magnetic member 14 and the second magnetic member 15. Exemplarily, the first magnetic member 14 can be bonded to the base 11 by glue. The second magnetic member 15 can be bonded to the lens mounting frame 12 by glue.

[0049] It should be noted that the camera motor 10 mentioned above in the present application can be a two-way closed-loop motor or a three-way closed-loop motor.

[0050] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A camera motor, characterized in that: include: Base and lens mounts; The base is provided with a mounting surface, and the lens mounting frame is movable on the mounting surface; the base has a first magnetism, and the lens mounting frame has a second magnetism; the first magnetism is the same as the second magnetism, so that a gap is formed between the base and the lens mounting frame under the action of magnetic repulsion.

2. The camera motor according to claim 1, characterized in that: The base is provided with a first magnetic component, which includes a first magnetic pole; the lens mounting frame is provided with a second magnetic component, which includes a second magnetic pole; the first magnetic pole is arranged facing the second magnetic pole, and the polarity of the first magnetic pole is the same as that of the second magnetic pole.

3. The camera motor according to claim 2, characterized in that: The area of ​​the first end face of the first magnetic pole facing the second magnetic pole is not equal to the area of ​​the second end face of the second magnetic pole facing the first magnetic pole; the lens mounting frame has a moving state; in the moving state, the projection of the smaller one of the first end face and the second end face on the mounting surface is always within the projection of the larger one on the mounting surface.

4. The camera motor according to claim 3, characterized in that: The lens mounting bracket also has a stationary state; in the stationary state, the projection of the smaller one of the first end face and the second end face on the mounting surface is located at the center position of the projection of the larger one on the mounting surface.

5. The camera motor according to claim 2, characterized in that: The camera motor further includes an optical anti-shake component; the optical anti-shake component includes a third magnetic component disposed on the base and a fourth magnetic component disposed on the lens mounting frame, and the third magnetic component cooperates with the fourth magnetic component; The first magnetic component is spaced apart from the third magnetic component, and a first magnetic isolation component is disposed between the first magnetic component and the third magnetic component; the second magnetic component is spaced apart from the fourth magnetic component, and a second magnetic isolation component is disposed between the second magnetic component and the fourth magnetic component.

6. The camera motor according to claim 5, characterized in that: The lens mounting bracket includes a bracket main body and a side bracket that can move relative to the bracket main body in a direction perpendicular to the mounting surface; the side bracket is provided with the fourth magnetic part; the bracket main body is also provided with a magnetic matching part, and the fourth magnetic part cooperates with the magnetic matching part to achieve automatic focusing.

7. The camera motor according to claim 2, characterized in that: The mounting surface is provided with a first mounting groove for mounting the first magnetic component, and the shape of the first mounting groove is adapted to the shape of the first magnetic component; And / or, a second mounting groove for mounting the second magnetic member is provided on a side of the lens mounting frame facing the mounting surface, and a shape of the second mounting groove is adapted to a shape of the second magnetic member.

8. The camera motor according to claim 2, characterized in that: The number of the first magnetic members is at least two, and the number of the second magnetic members is at least two; the first magnetic members are centrally symmetrically distributed about the base, and the second magnetic members are centrally symmetrically distributed about the lens mounting frame; And / or, the first magnetic member is bonded to the base, and the second magnetic member is bonded to the lens mounting frame.

9. A camera assembly, characterized in that: Comprising a camera motor as claimed in any one of claims 1 to 8.

10. A terminal device, characterized in that: Comprising a camera assembly as claimed in claim 9.

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