Camera module and electronic equipment

Abstract

The utility model discloses a camera module and electronic equipment, and belongs to the technical field of camera modules. The camera module comprises: a housing; the anti-shake frame is movably arranged in the shell; the driving assembly is connected between the anti-shake frame and the shell so as to drive the anti-shake frame to move relative to the shell in the first direction and / or the second direction, and the first direction is perpendicular to the second direction. The rolling assembly is connected between guide limiting grooves formed in the anti-shake frame and the shell in a rolling mode, the guide directions of the two guide limiting grooves are perpendicular to each other, and the included angle between the guide direction of the two guide limiting grooves and the first direction and the included angle between the guide direction of the two guide limiting grooves and the second direction are 45 degrees. The camera module and the electronic equipment provided by the utility model have good lens anti-shake control precision and anti-shake efficiency.

Description

Technical Field

[0001] This application belongs to the field of camera module technology, and in particular relates to a camera module and electronic device. Background Technology

[0002] In camera modules, optical image stabilization and focusing mechanisms are typically incorporated to improve image quality and shooting range, allowing the lens or image chip to move along the XYZ axes. This increases the structural complexity and size of the camera module, raising costs and limiting its applicability.

[0003] In typical optical image stabilization mechanisms for panning lenses, a certain number of components, including the lens, lens mount, and connected supports or suspensions, need to be panned as a whole via a drive mechanism. This results in a large load, significant resistance to image stabilization movement, and the support or suspension structure often needs to bear a large weight, making it difficult to control the movement precision and thus leading to unsatisfactory image stabilization performance. Utility Model Content

[0004] This application provides a camera module and electronic device, aiming to at least partially solve the technical problem of poor image stabilization accuracy and unsatisfactory effect of the lens image stabilization mechanism in camera modules. Therefore,

[0005] One aspect of this application provides a camera module, comprising:

[0006] A camera module, characterized in that it comprises:

[0007] case;

[0008] The image stabilization frame is movably disposed within the housing;

[0009] A drive assembly is connected between the stabilization frame and the housing to drive the stabilization frame to move relative to the housing in a first direction and / or a second direction, wherein the first direction and the second direction are perpendicular.

[0010] A rolling assembly is rollingly connected between guide limiting grooves disposed on the anti-shake frame and the housing. The guiding directions of the two guide limiting grooves are perpendicular to each other, and the angle between the guiding directions of the two guide limiting grooves and the first direction and the second direction is 45 degrees.

[0011] In some embodiments, the rolling component includes three or more balls.

[0012] In some embodiments, the image stabilization frame is provided with four guide limiting grooves at intervals, and the four guide limiting grooves are arranged sequentially along the circumference of the image stabilization frame, with the guiding directions of two adjacent guide limiting grooves being perpendicular.

[0013] In some embodiments, the driving component includes: a magnetic element and a first coil;

[0014] The magnetic component is disposed on the anti-shake frame, and the first coil is disposed on the housing and opposite to the magnetic component, so as to drive the anti-shake frame to move relative to the housing when the first coil is energized.

[0015] In some embodiments, the housing includes a connected base and a top cover, with the first coil disposed on the base or the top cover.

[0016] In some embodiments, when the first coil is disposed on the upper cover, the rolling assembly is rolled between the upper cover and the anti-shake frame, and the upper cover is provided with a magnetic attractant that attracts the magnetic element to pull the anti-shake frame toward the upper cover.

[0017] In some embodiments, the camera module further includes a carrier movably disposed within the image stabilization frame;

[0018] The driving assembly further includes a second coil disposed on the carrier and opposite the magnetic element, so as to drive the carrier to move relative to the stabilization frame when the second coil is energized.

[0019] In some embodiments, two sets of rolling elements are provided between the carrier and the anti-shake frame, and the two sets of rolling elements are symmetrically arranged on both sides of the carrier.

[0020] In some embodiments, each of the two sets of rolling elements includes three or more balls.

[0021] In another aspect of this application, an electronic device is provided, including: the camera module described in any of the preceding claims.

[0022] The embodiments of this application have at least the following beneficial effects:

[0023] The camera module and electronic device provided in this application embodiment are provided with a stabilization frame for supporting the lens and movable relative to the housing, and a rolling component is provided between the stabilization frame and the housing to realize the movement of the stabilization frame in a rolling support mode. This can take into account both load-bearing and sliding functions to obtain a large load capacity, and the movement resistance is small and stable, thereby facilitating precise control of the stabilization driving force and improving the stabilization accuracy and stabilization effect to a certain extent. It is worth noting that by setting vertically opposite guide limiting grooves on the housing and the image stabilization frame, and setting the guide direction at a 45-degree angle to the driving force direction of the drive component (i.e., the first and second directions), the rolling component can be stably guided and limited, providing stable rolling support for the image stabilization frame. This further maintains the uniformity of force on the image stabilization frame and the stability of the image stabilization translation posture, thus helping to improve the image stabilization effect. On the other hand, setting the guide direction of the guide limiting groove at a 45-degree angle to the perpendicular first and second directions ensures that the directions and trajectories of the image stabilization frame's image stabilization translation are inconsistent with the movement direction of the rolling component, and maintains a stable included angle. This can, to a certain extent, constrain the direction of the rolling component through the guide limiting groove, suppress the influence of the rolling component's movement inertia, reduce excessive rolling of the rolling component within the guide limiting groove, thereby maintaining the stability of the relative position of the rolling component and the image stabilization frame, maintaining the stability of the support position, and thus maintaining the stability of the image stabilization frame's posture, reducing posture changes during movement, and improving image stabilization accuracy and shooting effect. Meanwhile, the 45-degree angle between the guide limiting groove and the anti-shake driving direction can, to a certain extent, increase the distance between two adjacent wire limiting grooves, compared to the guide limiting groove that is consistent with the anti-shake moving direction, while keeping the support area of ​​the anti-shake frame unchanged. This allows the magnetic component to be made relatively larger, resulting in a larger magnetic field coverage area and more stable driving force and displacement control accuracy for the anti-shake frame movement. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 An exploded view of the camera module in an embodiment of this application is shown;

[0026] Figure 2 It shows Figure 1 A schematic diagram of the camera module in the diagram;

[0027] Figure 3 It shows Figure 1 A schematic diagram of the structure of the scrolling component of the camera module in the diagram;

[0028] Figure 4 It shows Figure 3 Top view.

[0029] Figure label:

[0030] 100 - Shell, 110 - Base, 120 - Top cover;

[0031] 200- Image Stabilization Frame;

[0032] 300 - Carrier;

[0033] 400 - Drive assembly, 410 - Magnetic component, 420 - Second coil, 430 - First coil;

[0034] 500 - Suspension shrapnel, 510 - First shrapnel, 520 - Second shrapnel;

[0035] 600 - Rolling component, 610 - Guide limiting groove;

[0036] 700-lens. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0039] This application is described below with reference to the accompanying drawings and specific embodiments:

[0040] Smart terminals and wearable devices are often equipped with various types of camera modules. To meet the requirements of shooting quality and range, they are usually equipped with image stabilization mechanisms and focusing mechanisms, which independently perform image stabilization and focusing operations. Among them, optical image stabilization mechanisms based on lens movement need to load and drive the lens, lens bracket, and matching components, etc., resulting in a large overall load and a corresponding increase in movement resistance, making it difficult to control movement accuracy and resulting in unsatisfactory image stabilization effect.

[0041] Therefore, this application provides a camera module and electronic device aimed at improving the accuracy and effect of lens stabilization.

[0042] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment of the application, the camera module includes: a housing 100 and a stabilization frame 200, a rolling component 600, a carrier 300 and a driving component 400 disposed within the housing 100.

[0043] The carrier 300 is used to mount and support the lens 700. In order to achieve focusing operation, the carrier 300 is movably disposed within the image stabilization frame 200 and can carry the lens 700 to move relative to the image stabilization frame 200 to achieve focusing operation.

[0044] The image stabilization frame 200 is movably disposed within the housing 100 via the rolling assembly 600, specifically configured to translate along a predetermined plane to carry the carrier 300 and the lens 700 thereon in a single translational motion, thereby achieving image stabilization movement. The carrier 300 can be configured to move in a direction perpendicular to the predetermined plane to perform focusing operations. Thus, the housing 100, the image stabilization frame 200, and the carrier 300 constitute an integrated image stabilization and focusing mechanism for the lens, thereby improving the degree of structural integration, reducing structural complexity, and reducing size specifications to a certain extent.

[0045] The setting plane refers to the plane on which the stabilization frame 200 translates during stabilization operation.

[0046] In some embodiments, guide grooves 610 can be formed on two opposing surfaces of the housing 100 and the anti-shake frame 200, and the two guide grooves 610 are opposite to each other, so that the rolling component 600 can be rolled between the two guide grooves 610 to ensure that the moving direction and position of the rolling component 600 are within a clear and stable range, so as to ensure the stability of the support height and position of the anti-shake frame 200, thereby maintaining the stability of the posture during the anti-shake movement process and improving the anti-shake effect.

[0047] On the other hand, by using the rolling component 600 to support the image stabilization frame 200, the load capacity of the image stabilization mechanism can be improved to a certain extent. Even when carrying the lens 700 and its associated components and structures, it can maintain a relatively good rolling support state, taking into account both stable movement and good load performance. Furthermore, the rolling mode can reduce the impact of contact resistance and improve image stabilization accuracy.

[0048] In some embodiments, to further maintain the stability of the support area and direction of the rolling component 600, the guiding direction of the two opposing guide limiting grooves 610 can be set to a vertical direction, that is, the rolling direction of the rolling component 600 on the housing 100 and the anti-shake frame 200 is perpendicular to each other; thereby, the movement of the anti-shake frame can be converted into the rolling of the rolling component in two vertical directions, so that the anti-shake translation in each direction can be implemented in a stable direction and trajectory, thus having a guiding and limiting function in both vertical directions to meet the needs of guiding and limiting the movement of the anti-shake frame 200 in the set plane, and facilitating the control of the relative position of the rolling component with the housing and the anti-shake frame, maintaining a stable rolling support point, ensuring the uniformity of the force on the anti-shake frame, thereby ensuring the stability of the posture during anti-shake translation, and helping to improve the anti-shake effect.

[0049] The guiding direction of the two guide limiting grooves 610 can also be set at 45 degrees to the direction of the driving force of the driving component 400 on the image stabilization frame 200. This can increase the distance and space between the two adjacent guide limiting grooves 610 on the image stabilization frame 200 to a certain extent, thereby leaving relatively more space for the magnetic component 410. This allows the magnetic component 410 to be made larger, thereby relatively expanding the magnetic field range, increasing the driving force to a certain extent, and improving the load capacity of image stabilization and focusing.

[0050] In some embodiments, the rolling assembly may include three or more balls arranged circumferentially along the carrier 300, thereby enabling the consistency of the omnidirectional rolling posture of the balls to adapt to the all-directional adaptability of anti-shake translation. Simultaneously, the three or more sets of balls can also form at least three rolling fulcrums, stably supporting the anti-shake frame 200, ensuring the posture stability of anti-shake translation, and the rolling action can reduce wear to a certain extent, thereby ensuring anti-shake accuracy.

[0051] It is worth noting that, to improve the reliability of multi-point support, the number of ball bearings can be set to four, respectively distributed in four different areas of the anti-shake frame 200, to limit the downward tilt on one side. Specifically, the anti-shake frame 200 can be divided into four areas: front, back, left, and right, with one ball bearing arranged in each area.

[0052] In some embodiments, in order to improve the utilization efficiency of the assembly space, the anti-shake frame 200 can be set to a roughly rectangular shape, which can better plan the structure and connect the structure, avoid unnecessary gaps, and reduce the difficulty of structural design to a certain extent; however, the edges and corners do not need to be strictly set as right angles as required.

[0053] Correspondingly, the four balls can be respectively set in the four corner areas of the rectangular anti-shake frame.

[0054] In some embodiments, the anti-shake translation of the anti-shake frame 200 can be decomposed into movement in two vertical directions. For this purpose, the translation of the anti-shake frame 200 can be decomposed into the directions of the two vertical sides of a rectangle.

[0055] In some embodiments, the guiding direction of the guide limiting groove 610 can be set to correspond to the direction of the translational driving force received by the anti-shake frame 200. That is, by setting the position of the drive component 400 and the direction of the driving force, the direction of the translational driving force is set to two mutually perpendicular directions, and the guiding direction of the guide limiting groove 610 is set to the direction of the translational driving force, so as to ensure that the balls can roll and move during the translation process, thereby reducing rolling wear.

[0056] In some embodiments, the guide and limiting grooves 610 on the base 110 and the image stabilization frame 200 are generally centrally symmetrical about the central optical axis of the lens 700, so that the force on the lens 700 is basically balanced and can effectively limit the tilt of the lens to one side.

[0057] In some embodiments, corresponding to the four balls, the anti-shake frame 200 is provided with four guide limiting grooves 610 at intervals, and the four guide limiting grooves 610 are arranged sequentially on the circumferential side of the carrier 300, and the guiding directions of two adjacent guide limiting grooves 610 are perpendicular. Thus, when a ball of the anti-shake frame 200 rolls along the corresponding guide limiting groove 610, the two balls on both sides of the circumferential side of the carrier 300 roll approximately in place relative to the anti-shake frame 200, thereby avoiding the situation where all balls are biased towards one side of the anti-shake frame 200, thus ensuring the stability of the support point area of ​​the anti-shake frame 200 and ensuring the overall stability of the posture of the anti-shake frame 200.

[0058] In some embodiments, the four limiting grooves 610 can be arranged approximately at the four corners of a square ring frame, with one end of each limiting groove 610 pointing towards the center of the square ring frame, so that the rolling trajectory of the balls in the four limiting grooves 610 also points towards the center of the ring frame in the positive direction.

[0059] In some embodiments, the guide limiting groove 610 can be configured as a rectangular groove, a V-shaped groove, or an arc groove, and can be flexibly configured as needed, without specific limitations here.

[0060] In some embodiments, the image stabilization frame 200 is a ring frame structure with an internal space to accommodate the carrier 300, facilitating its reciprocating movement for focusing; correspondingly, the carrier 300 can also be configured as a ring frame structure to embed the lens 700, and through nested connection, ensure that the light path of the lens 700 is unobstructed.

[0061] Considering that the outer surface of the lens 700 is usually a circular surface, the inner side of the ring frame of the carrier 300 can also be set as a circular surface, which is convenient for fitting and fixing, and can also limit the entry of interfering light.

[0062] See Figure 1 In some embodiments, the driving component 400 may include: a magnetic element 410, a first coil 430, and a second coil 420.

[0063] The magnetic component 410 is disposed on the anti-shake frame 200, and the first coil 430 is disposed on the housing 100 and opposite to the magnetic component 410, so that when the first coil 430 is energized, the anti-shake frame 200 is driven to move relative to the housing 100 to achieve anti-shake translation.

[0064] The second coil 420 is disposed on the carrier 300 and opposite to the magnetic element 410, so as to drive the carrier 300 to move relative to the anti-shake frame 200 when the second coil 420 is energized.

[0065] See Figure 1 In some embodiments, the housing 100 may include a base 110 and a top cover 120 connected together, with the second coil 420 disposed on the base 110 or the top cover 120.

[0066] The rolling component 600 can be rolled between the base 110 and the anti-shake frame 200, and the second coil 420 is disposed on the base 110, so that the anti-shake frame 200 can move smoothly on the base 110.

[0067] Alternatively, the rolling component 600 can be rolled between the upper cover 120 and the anti-shake frame 200, the second coil 420 can be disposed on the upper cover 120, and the upper cover 120 can be provided with a magnetic attractant or magnetic area that attracts the magnetic component 400, so as to pull the anti-shake frame 200 toward the upper cover, thereby realizing the suspension installation of the anti-shake frame 200 and clamping the rolling component 600 to ensure the stability of the translational posture.

[0068] In some embodiments, the rolling assembly 600 further includes two sets of rolling elements that are rolledly connected between the carrier 300 and the image stabilization frame 200, and the two sets of rolling elements are symmetrically arranged on both sides of the carrier 300; that is, rolling elements are also provided on the carrier 300 and the image stabilization frame 200 to realize a rolling limiting mechanism, limiting the distance between the carrier 300 and the image stabilization frame 200, so as to ensure that the carrier 300 moves stably for focusing and limit the swing amplitude.

[0069] In some embodiments, in order to optimize the limiting performance of the rolling elements, either of the two sets of rolling elements can be set to three or more sets of balls, and the focusing movement of the carrier 300 can be stabilized by three-point support limiting.

[0070] In some embodiments, an electronic device including the above-described camera module, such as a smartphone, tablet, and watch, is also provided.

[0071] The camera module and electronic device provided in this application embodiment are provided with a stabilization frame for supporting the lens and movable relative to the housing, and a rolling component is provided between the stabilization frame and the housing to realize the movement of the stabilization frame in a rolling support mode. This can take into account both load-bearing and sliding functions to obtain a large load capacity, and the movement resistance is small and stable, thereby facilitating precise control of the stabilization driving force and improving the stabilization accuracy and stabilization effect to a certain extent. It is worth noting that by setting vertically opposite guide limiting grooves on the housing and the image stabilization frame, and setting the guide direction at a 45-degree angle to the driving force direction of the drive component (i.e., the first and second directions), the rolling component can be stably guided and limited, providing stable rolling support for the image stabilization frame. This further maintains the uniformity of force on the image stabilization frame and the stability of the image stabilization translation posture, thus helping to improve the image stabilization effect. On the other hand, setting the guide direction of the guide limiting groove at a 45-degree angle to the perpendicular first and second directions ensures that the directions and trajectories of the image stabilization frame's image stabilization translation are inconsistent with the movement direction of the rolling component, and maintains a stable included angle. This can, to a certain extent, constrain the direction of the rolling component through the guide limiting groove, suppress the influence of the rolling component's movement inertia, reduce excessive rolling of the rolling component within the guide limiting groove, thereby maintaining the stability of the relative position of the rolling component and the image stabilization frame, maintaining the stability of the support position, and thus maintaining the stability of the image stabilization frame's posture, reducing posture changes during movement, and improving image stabilization accuracy and shooting effect. Meanwhile, the 45-degree angle between the guide limiting groove and the anti-shake driving direction can, to a certain extent, increase the distance between two adjacent wire limiting grooves, compared to the guide limiting groove that is consistent with the anti-shake moving direction, while keeping the support area of ​​the anti-shake frame unchanged. This allows the magnetic component to be made relatively larger, resulting in a larger magnetic field coverage area and more stable driving force and displacement control accuracy for the anti-shake frame movement.

[0072] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0074] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this application, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of this application, "multiple" means two or more, unless otherwise explicitly and specifically limited.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0076] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0077] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that, include: case; The image stabilization frame is movably disposed within the housing; A drive assembly is connected between the stabilization frame and the housing to drive the stabilization frame to move relative to the housing in a first direction and / or a second direction, wherein the first direction and the second direction are perpendicular. A rolling assembly is rollingly connected between guide limiting grooves disposed on the anti-shake frame and the housing. The guiding directions of the two guide limiting grooves are perpendicular to each other, and the angle between the guiding directions of the two guide limiting grooves and the first direction and the second direction is 45 degrees.

2. The camera module as described in claim 1, characterized in that, The rolling component includes three or more sets of balls.

3. The camera module as described in claim 2, characterized in that, The anti-shake frame is provided with four guide limiting grooves at intervals, and the four guide limiting grooves are arranged sequentially along the circumference of the anti-shake frame, with the guiding directions of two adjacent guide limiting grooves being perpendicular.

4. The camera module as described in any one of claims 1 to 3, characterized in that, The driving component includes: a magnetic element and a first coil; The magnetic component is disposed on the anti-shake frame, and the first coil is disposed on the housing and opposite to the magnetic component, so as to drive the anti-shake frame to move relative to the housing when the first coil is energized.

5. The camera module as described in claim 4, characterized in that, The housing includes a connected base and a top cover, with the first coil disposed on the base or the top cover.

6. The camera module as described in claim 5, characterized in that, When the first coil is disposed on the upper cover, the rolling assembly is rolled between the upper cover and the anti-shake frame, and the upper cover is provided with a magnetic attracting element that attracts the magnetic element to pull the anti-shake frame toward the upper cover.

7. The camera module as described in claim 5, characterized in that, The camera module also includes a carrier, which is movably disposed within the image stabilization frame; The driving assembly further includes a second coil disposed on the carrier and opposite the magnetic element, so as to drive the carrier to move relative to the stabilization frame when the second coil is energized.

8. The camera module as described in claim 7, characterized in that, Two sets of rolling elements are provided between the carrier and the anti-shake frame, and the two sets of rolling elements are symmetrically arranged on both sides of the carrier.

9. The camera module as described in claim 8, characterized in that, Each of the two sets of rolling elements includes three or more balls.

10. An electronic device, characterized in that, include: The camera module as described in any one of claims 1 to 9.

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