Driving motor and related product thereof
By setting the first shaft in the drive motor on the side of the mounting slope near the light output hole, and combining it with the design of support and magnetic components, the problem of low driving accuracy of existing image stabilization motors is solved, and a high-precision image stabilization and miniaturized camera module design is achieved.
Patent Information
- Application Number
- CN202511600658.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-21
- Publication Date
- 2026-02-06
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing image stabilization motors have low driving precision and large focus shift, which affects image quality.
In the design of the drive motor, the first shaft is located on the side of the mounting slope near the light outlet, perpendicular to the direction of the light. Combined with the design of the support and magnetic components, it ensures that the focal shift is small when the optical element rotates around the first shaft, thus improving the anti-shake accuracy.
By reducing the focus offset, the image stabilization accuracy and image quality of the camera module are improved, while the miniaturization of the drive motor and motion stability are achieved.
Smart Images

Figure CN121477536A_ABST
Abstract
Description
[0001] This application is a divisional application. The original application has the application number 202311227283.9 and the original application date is September 21, 2023. The entire contents of the original application are incorporated herein by reference. Technical Field
[0002] This application relates to the field of photography, and in particular to a drive motor and related products. Background Technology
[0003] With the widespread adoption and development of smartphones, mobile phone photography has become a common way for people to take pictures, and users have increasingly higher requirements for the image quality of electronic devices. Currently, telephoto lenses on the market typically use a periscope structure to achieve miniaturization. A periscope structure usually includes an optical folding element and lens group arranged from the object side to the image side, and optical image stabilization is achieved by driving the optical folding element with an image stabilization motor. However, current image stabilization motors have low driving precision and high focus shift, resulting in poor final image quality. Summary of the Invention
[0004] This application provides a drive motor and related products including the drive motor, aiming to provide a drive motor and related products with high anti-shake accuracy and small focus offset.
[0005] In a first aspect, a drive motor is provided. The drive motor has an inlet aperture and an outlet aperture. The drive motor includes: a base; a first bracket movably connected to the base, the first bracket including a mounting slope, the side of the mounting slope facing the inlet aperture and the outlet aperture being a mounting side, the mounting side being used to mount a first optical element; and a first drive mechanism for driving the first bracket to rotate relative to the base about a first axis, the first axis being parallel to the mounting slope; wherein light enters the drive motor through the inlet aperture along a first direction, is reflected by the first optical element, and exits the drive motor through the outlet aperture along a second direction, the first direction and the second direction intersecting, the first axis being located on the mounting side of the mounting slope and perpendicular to the plane containing the first direction and the second direction.
[0006] It is understandable that, compared to some methods where a drive motor rotates a first optical element relative to a base around a first axis to achieve optical image stabilization, where the first axis is perpendicular to the plane containing the first and second directions and is located on the mounting slope of the mover, or on the side of the mounting slope facing away from the light-emitting aperture, the focus shift is relatively large when the drive motor rotates the first optical element around the first axis for optical image stabilization. This results in a significant decrease in the modulation transfer function of the entire camera module, leading to lower stabilization accuracy and affecting image quality. In this embodiment, however, the first axis of the drive motor is located on the side of the mounting slope closer to the light-emitting aperture, i.e., the mounting side of the mounting slope. The first axis is perpendicular to the plane containing the first and second directions. Therefore, when the drive motor rotates the first optical element around the first axis, the focus shift is smaller, effectively reducing the impact of focus shift on the modulation transfer function, which is beneficial for improving the stabilization accuracy of the entire camera module and improving image quality.
[0007] In one possible implementation, the drive motor further includes a second bracket and a second drive mechanism. The second bracket is movably connected between the base and the first bracket, and the second drive mechanism is used to drive the second bracket and the first bracket to rotate relative to the base about a second axis. The second axis passes through the mounting inclined surface and is parallel to a second direction.
[0008] It is understandable that, compared to some methods where a drive motor rotates a first optical element around a second axis to achieve optical image stabilization, with the second axis parallel to the first direction, this method causes the exit surface of the first optical element to tilt at an angle to the incident surface of the subsequent focusing assembly. This results in a significant decrease in the modulation transfer function of the entire camera module, lower stabilization accuracy, and negatively impacted image quality. In this embodiment, however, the second axis of the drive motor is parallel to the second direction. When the first optical element rotates around the second axis under the drive motor for stabilization, the exit surface of the first optical element remains parallel to the incident surface of the subsequent focusing assembly. This effectively improves the overall stabilization accuracy of the drive motor, reduces the impact on the modulation transfer function, and ultimately improves the image quality of the camera module.
[0009] In one possible implementation, the first bracket has a first connecting portion and a second connecting portion on the side near the light output hole. The first connecting portion and the second connecting portion are opposite to each other and spaced apart, and their arrangement direction is parallel to the first axis. The drive motor also includes a first set of support members, which includes multiple first support members. Some of the first support members are connected between the first connecting portion and the second bracket, and other first support members are connected between the second connecting portion and the second bracket. In this way, the first connecting portion of the first bracket can be movably connected to the second bracket through a portion of the first support members, and the second connecting portion can be movably connected to the second bracket through another portion of the first support members. At the same time, both the first connecting portion and the second connecting portion can be positioned close to the light output hole to facilitate positioning the first axis on the mounting side of the mounting slope, thereby improving the anti-shake accuracy.
[0010] In one possible implementation, the first shaft passes through the first connecting part and the second connecting part. This reduces the distance between the first shaft and the light output hole of the drive motor, which helps improve the stabilization accuracy.
[0011] In one possible implementation, the second bracket includes a first part and a second part disposed opposite to each other. The first part is located between the first connecting part and the base, and the second part is located between the second connecting part and the base. The drive motor also includes a second set of support members, which comprises multiple second support members. The first part is rotatably connected to the base via some of the second support members, and the second part is rotatably connected to the base via another portion of the second support members. The center point of the second set of support members is located on the mounting side. Thus, when the first optical element is mounted on the drive motor, the center point of the second set of support members is located on the mounting side, and the center point of the second set of support members is relatively close to the center of gravity of the first optical element, the first bracket, and the second bracket as a whole. This effectively enhances the anti-interference capability of the drive motor when rotating around the second axis for anti-shake purposes; it also reduces the power consumption of the drive motor, which helps to extend the battery life of electronic devices and improve the user experience.
[0012] In one possible implementation, the first part partially surrounds the first connecting portion, and the second part partially surrounds the second connecting portion. In this way, the first connecting portion and the second connecting portion can respectively utilize the dimensional space of the first part in the second direction and the dimensional space of the second part in the second direction, making the overall structure of the drive motor more compact and facilitating the miniaturization of the drive motor.
[0013] In one possible implementation, the first part includes a first end, a middle part, and a second end. The middle part is fixedly connected between the first end and the second end, and the second end is located on the side of the first end away from the light inlet hole. The middle part protrudes relative to the first end and the second end along the side opposite to the light outlet hole. The first end, the middle part, and the second end together enclose a first space. A first connecting part is installed in the first space, and a portion of the first support member is connected between the first connecting part and the middle part. In this way, the first connecting part can utilize the first space enclosed by the first end, the middle part, and the second end, making the structure between the first connecting part and the first part more compact, which is beneficial for miniaturizing the drive motor.
[0014] In one possible implementation, the drive motor may further include a first upper elastic member and a first lower elastic member. The first upper elastic member is connected between the first end and the first connecting portion, and the first lower elastic member is connected between the second end and the first connecting portion. The elastic force generated by the first upper and first lower elastic members keeps a portion of the first support member in contact with the wall of the first space. In this way, the first upper and first lower elastic members can generate pre-pressure on the first connecting member, so that the portion of the first support member between the first connecting portion and the first part can maintain contact with the first part and with the first connecting portion, which helps to ensure the motion stability when the drive motor drives the first optical element to rotate around the first axis.
[0015] In one possible implementation, the drive motor further includes a first magnetic component, a second magnetic component, and a magnetic absorbing plate. Both the first and second magnetic components are fixed to a first connecting portion. The first magnetic component is located on the side of the second magnetic component closer to the light-gathering hole. The first connecting portion has a first sliding groove for mounting a portion of the first support component, and the first sliding groove is located between the first and second magnetic components. The magnetic absorbing plate is fixed to the first portion, and is positioned opposite to both the first and second magnetic components. The magnetic attraction forces generated by the first and second magnetic components and the magnetic absorbing plate together maintain the portion of the first support component in contact with both the first portion and the first connecting portion. In this way, the first magnetic component can cooperate with the second magnetic component to generate a magnetic attraction force along a second direction on the magnetic absorbing plate within the first portion, thereby ensuring that the portion of the first support component remains in contact with both the first portion and the first connecting portion. This helps to guarantee the motion stability when the drive motor drives the first optical element to rotate around the first axis.
[0016] In one possible implementation, a portion of the second support member is connected between the first end of the first part and the base, and another portion of the second support member is connected between the second end of the first part and the base. This allows the first part to be movably connected to the base at both its first and second ends via portions of the second support member, which helps reduce the kinetic friction between the first part and the base. Simultaneously, the projections of the second set of support members in the second direction do not substantially overlap with the first set of support members, improving the internal space utilization of the drive motor and facilitating its miniaturization.
[0017] In one possible implementation, the multiple first support members include multiple first balls and multiple second balls. A first connecting part is rotatably connected to a first part via the multiple first balls, and a second connecting part is rotatably connected to a second part via the multiple second balls. The center of the circle containing the centers of the multiple first balls is a first rotation center, and the center of the circle containing the centers of the multiple second balls is a second rotation center. The line connecting the first rotation center and the second rotation center coincides with the first axis. In this way, the first support is rotatably connected to the second support via the multiple first balls and multiple second balls, which helps to reduce the kinetic friction between the first support and the second support.
[0018] In one possible implementation, multiple first support members include first and second balls. A first connecting portion is rotatably connected to a first part via the first balls, and a second connecting portion is rotatably connected to a second part via the second balls. The line connecting the centers of the first and second balls coincides with a first axis. Alternatively, the contact point between the first ball and the first connecting portion is the first contact point, and the contact point between the second ball and the second connecting portion is the second contact point. The line connecting the first and second contact points coincides with the first axis. Or, the contact point between the first ball and the first part is the first contact point, and the contact point between the second ball and the second part is the second contact point. The line connecting the first and second contact points coincides with the first axis. In this way, the first support is rotatably connected to the second support via the first and second balls, which helps to reduce the kinetic friction between the first and second supports.
[0019] In one possible implementation, the first connecting portion is provided with a first sliding groove, and the first part is provided with a first guide groove. The opening of the first sliding groove and the opening of the first guide groove are opposite to each other. The first sliding groove and the first guide groove constitute a first ball groove, and at least a portion of the first ball is located in the first ball groove. The second connecting portion is provided with a second sliding groove, and the second part is provided with a second guide groove. The opening of the second sliding groove and the opening of the second guide groove are opposite to each other. The second sliding groove and the second guide groove constitute a second ball groove, and at least a portion of the second ball is located in the second ball groove. At least one of the first sliding groove and the second sliding groove is a V-groove, and one of the first guide groove and the second guide groove is a V-groove. Alternatively, at least one of the first guide groove and the second guide groove is a V-groove, and one of the first sliding groove and the second sliding groove is a V-groove.
[0020] It is understandable that the first bracket and the second bracket are respectively provided with two sets of paired counterslots (i.e., the first sliding groove and the first guide groove, and the second sliding groove and the second guide groove). By setting at least one of the first sliding groove and the second sliding groove to be a V-groove, and one of the first guide groove and the second guide groove to be a V-groove; or, at least one of the first guide groove and the second guide groove to be a V-groove, and one of the first sliding groove and the second sliding groove to be a V-groove, the drive motor can determine the position of the first shaft while avoiding jamming when the first bracket moves relative to the second bracket. At the same time, it can automatically correct the relative position between the actual first shaft and the theoretical first shaft, which is beneficial to improving the smoothness of the first bracket's movement when rotating around the first shaft relative to the second bracket.
[0021] In one possible implementation, the multiple second supports include at least three third balls, and the second bracket is rotatably connected to the base via the multiple third balls, with the centers of the balls located in the same plane; the second axis is perpendicular to the plane containing the centers of the balls. This perpendicularity of the second axis to the plane containing the centers of the balls improves the anti-vibration accuracy of the drive motor.
[0022] In one possible implementation, the second bracket is provided with a third guide groove, a fourth guide groove, and a fifth guide groove, and the base is provided with a first slide groove, a second slide groove, and a third slide groove. The openings of the third guide groove, the fourth guide groove, and the fifth guide groove are respectively arranged opposite to the openings of the first slide groove, the second slide groove, and the third slide groove. The third guide groove, the fourth guide groove, and the fifth guide groove, together with the first slide groove, the second slide groove, and the third slide groove, respectively, form a third ball groove, a fourth ball groove, and a fifth ball groove. A plurality of third balls are respectively located in the third ball groove, the fourth ball groove, and the fifth ball groove. At least two of the third guide groove, the fourth guide groove, and the fifth guide groove are V-grooves, and two of the first slide groove, the second slide groove, and the third slide groove are V-grooves; or, at least two of the first slide groove, the second slide groove, and the third slide groove are V-grooves, and two of the third guide groove, the fourth guide groove, and the fifth guide groove are V-grooves.
[0023] It is understandable that by setting at least three pairs of opposing grooves (i.e., the third guide groove and the first slide groove, the fourth guide groove and the second slide groove, and the fifth guide groove and the third slide groove) on the second bracket and the base respectively, and by setting at least two of the third guide groove, the fourth guide groove and the fifth guide groove to be V-grooves, and two of the first slide groove, the second slide groove and the third slide groove to be V-grooves; or, at least two of the first slide groove, the second slide groove and the third slide groove to be V-grooves, and two of the third guide groove, the fourth guide groove and the fifth guide groove to be V-grooves, the drive motor can be positioned at the second axis while avoiding jamming when the second bracket moves relative to the base. At the same time, it can automatically correct the relative position between the actual second axis and the theoretical second axis, which is beneficial to improving the smoothness of the second bracket's movement around the second axis relative to the base.
[0024] In one possible implementation, the drive motor further includes a first drive coil, a second drive coil, a first set of magnetic components, and a second set of magnetic components. Both the first and second drive coils are fixed to a base. The first set of magnetic components is fixed to a first bracket and located on the side of the first bracket facing away from the light-emitting hole, with the first set of magnetic components opposite to the first drive coil. The second set of magnetic components includes a first sub-magnetic component and a second sub-magnetic component, both fixed to the first bracket. The arrangement direction of the first sub-magnetic component, the mounting slope, and the second sub-magnetic component is parallel to the first axis. The second drive coil includes a first sub-coil and a second sub-coil, with the first sub-coil opposite to the first sub-magnetic component, and the second sub-coil opposite to the second sub-magnetic component. This fixed first and second sets of magnetic components to the first bracket facilitate integrated transmission of the drive motor and improve the smoothness of its operation during anti-shake actions. Furthermore, the multiple sets of coils and magnetic components can be located in different positions on the first bracket, improving the internal space utilization of the drive motor and resulting in a more compact structure.
[0025] In one possible implementation, the drive motor further includes a first drive coil, a second drive coil, a first set of magnetic components, and a second set of magnetic components. Both the first and second drive coils are fixed to a base. The first set of magnetic components is fixed to a first bracket and located on the side of the support facing away from the light-emitting hole, with the first set of magnetic components opposite to the first drive coil. The second set of magnetic components includes a first sub-magnetic component and a second sub-magnetic component, both fixed to a second bracket. The arrangement direction of the first sub-magnetic component, the mounting slope, and the second sub-magnetic component is parallel to a first axis. The second drive coil includes a first sub-coil and a second sub-coil, with the first sub-coil opposite to the first sub-magnetic component, and the second sub-coil opposite to the second sub-magnetic component. In this way, the first and second sets of magnetic components are fixed to the first and second brackets respectively, allowing the driving force generated by the second set of magnetic components in conjunction with the second drive coil to directly act on the second bracket, without being affected by assembly errors between the first and second brackets, thus improving the anti-shake accuracy of the drive motor.
[0026] In one possible implementation, the first driving coil and the first set of magnetic components constitute a first driving mechanism, and the second driving coil and the second set of magnetic components constitute a second driving mechanism; alternatively, the first driving coil and the first set of magnetic components constitute a second driving mechanism, and the second driving coil and the second set of magnetic components constitute a first driving mechanism. In this way, a larger driving force can be generated through the cooperation of the coil and the magnetic components, which is beneficial for the drive motor to support the first optical element with a larger mass.
[0027] In one possible implementation, the drive motor further includes a magnetic chuck fixed to the base. The projection of the magnetic chuck in a direction parallel to the second axis at least partially overlaps with the first set of magnetic components. The first bracket presses against the second bracket under the force between the magnetic chuck and the first set of magnetic components. In this way, the magnetic components can provide pre-pressure to the first and second brackets, ensuring that the first set of support components remains in contact with both the first and second brackets, while also ensuring that the second set of support components remains in contact with the second bracket and the base. This helps to ensure the motion stability of the drive motor during anti-vibration operation.
[0028] In one possible implementation, the first bracket further includes a support portion, a first sidewall, and a second sidewall. The first and second sidewalls are opposite to each other and spaced apart, with their arrangement direction parallel to the first axis. The support portion connects the first and second sidewalls, and the support portion, first sidewall, and second sidewall enclose an installation space. The surface of the support portion facing the installation space forms the mounting slope of the first bracket, and the installation space is used to install the first optical element. A first connecting portion is located on the side of the first sidewall facing away from the second sidewall and is fixedly connected to the end of the first sidewall facing the light-emitting aperture. A second connecting portion is located on the side of the second sidewall facing away from the first sidewall and is fixedly connected to the end of the second sidewall near the light-emitting aperture. In this way, the first bracket can form a semi-enclosed structure, thereby better supporting and installing the first optical element. At the same time, both the first and second connecting portions can be located near the light-emitting aperture, so that the first axis can be positioned on the mounting side of the mounting slope, improving the image stabilization accuracy.
[0029] In one possible implementation, the drive motor further includes a base plate, which comprises a main body and an extension. The main body is fixedly connected to the surface of the base facing away from the light-entry hole. The extension is disposed opposite to the first sidewall, and the arrangement direction of the extension and the first sidewall is parallel to the second axis. The extension has a first protrusion facing the first sidewall, and the first sidewall has a first limiting groove. At least a portion of the first protrusion is located within the first limiting groove. Thus, when the first bracket rotates relative to the base around the second axis under the action of the second bracket, the first protrusion can engage with the first limiting groove, effectively preventing the first bracket from rotating too much relative to the base around the second axis, which could cause the first optical element to collide with the base of the drive motor and be damaged, thereby extending the service life of the camera module.
[0030] In one possible implementation, the first bracket has an anti-collision protrusion on the side facing away from the light-emitting hole, and the base has a limiting hole, with at least a portion of the anti-collision protrusion located within the limiting hole. In this way, when the first bracket rotates relative to the base around a first axis, the anti-collision protrusion can engage with the limiting hole, effectively preventing the first bracket from rotating too much relative to the base around the first axis, which could cause the first optical element to collide with the base of the drive motor and be damaged, thus extending the service life of the camera module.
[0031] In one possible implementation, the distance between the first axis and the mounting slope is greater than 0.01 mm; and / or, the distance between the first axis and the mounting slope is greater than or equal to 5 mm. This allows the first axis to be located on the mounting side and maintain a certain distance from the mounting slope, which helps reduce the focus offset and thus effectively reduces the impact of focus offset on the modulation transfer function. This improves the overall image stabilization accuracy of the camera module and enhances image quality.
[0032] In one possible implementation, the first bracket and the light inlet are arranged in a first direction, and the first bracket and the light outlet are arranged in a second direction. The first bracket has a first connecting portion and a second connecting portion on the side near the light outlet. The first connecting portion and the second connecting portion are opposite to each other and spaced apart. The arrangement direction of the first connecting portion and the second connecting portion is parallel to the first axis. The drive motor also includes a first set of support members, which includes multiple first support members. The first connecting portion is rotatably connected to the base through some of the first support members, and the second connecting portion is rotatably connected to the base through another portion of the first support members. In this way, the first bracket is directly and movably connected to the base, which helps to reduce errors caused by assembly and other factors between the first bracket and the base, and improves motion accuracy.
[0033] Secondly, a stabilization component is provided. The stabilization component includes a first optical element and the aforementioned drive motor. The first optical element includes an optical path folding element, which includes a first surface, a second surface, and a third surface. The first surface is perpendicular to the third surface, and the second surface is disposed facing the first and third surfaces and connecting the first and second surfaces. The first and third surfaces are both transmissive surfaces, and the second surface is a reflective surface. The first surface is disposed opposite to the light inlet aperture, and the third surface is disposed opposite to the light outlet aperture. The first optical element has an input optical axis and an output optical axis. The input optical axis is parallel to a first direction, and the output optical axis is parallel to a second direction.
[0034] It is understood that the first axis of the drive motor of the image stabilization component in this embodiment is located on the side of the mounting slope near the light-emitting aperture, that is, the mounting side of the mounting slope. The first axis is perpendicular to the plane containing the first direction and the second direction. In this way, when the drive motor drives the first optical element to rotate around the first axis, the focal point offset is small, thereby effectively reducing the impact of the focal point offset on the modulation transfer function, which is beneficial to improving the image stabilization accuracy of the entire camera module and improving the image quality.
[0035] Thirdly, a stabilization component is provided. The stabilization component includes a first optical element and the aforementioned drive motor. The first optical element includes an optical path folding element, which includes a reflective surface and a mounting surface. The reflective surface and the mounting surface are disposed opposite to each other. The mounting surface faces the mounting slope of the first bracket and is fixedly connected to the mounting slope. The reflective surface is disposed opposite to the mounting slope. The first optical element has an input optical axis and an output optical axis. The input optical axis is parallel to a first direction, and the output optical axis is parallel to a second direction.
[0036] It is understood that the first axis of the drive motor of the image stabilization component in this embodiment is located on the side of the mounting slope near the light-emitting aperture, that is, the mounting side of the mounting slope. The first axis is perpendicular to the plane containing the first direction and the second direction. In this way, when the drive motor drives the first optical element to rotate around the first axis, the focal point offset is small, thereby effectively reducing the impact of the focal point offset on the modulation transfer function, which is beneficial to improving the image stabilization accuracy of the entire camera module and improving the image quality.
[0037] Secondly, compared to image stabilization components where the optical path folding element is a reflecting prism, the first, second, and third surfaces of the reflecting prism are all solid surfaces, and the transmission of light between the first and third surfaces occurs entirely within the reflecting prism. The higher refractive index inside the reflecting prism increases the optical path requirement of the entire camera module, resulting in a longer focusing path for the focusing component and a larger overall module size. In this embodiment, the optical path folding element is a reflecting plane mirror, with its reflective surface exposed to air. Thus, the transmission of light between the light inlet and outlet apertures occurs entirely within the air. The lower refractive index in air helps reduce the optical path requirement of the camera module, thereby shortening the focusing path of the focusing component and reducing the overall size of the module in the second direction, enabling a miniaturized camera module design.
[0038] In one possible implementation, the drive motor further includes an optical mount, at least a portion of which is fixedly connected between the optical path folding element and the mounting ramp, and the strength of the optical mount is greater than the strength of the portion of the mounting ramp of the first bracket.
[0039] Understandably, compared to the direct contact between the optical path folding element and the mounting slope of the first bracket, the strength of the mounting slope of the first bracket is relatively low. This makes the mounting slope more susceptible to deformation due to impact or high temperatures, affecting the surface accuracy of the contact surface between the optical path folding element and the mounting slope, thus reducing optical quality. In this embodiment, the optical path folding element is indirectly fixed to the mounting slope through an optical mounting component. The optical path folding element and the mounting slope do not have direct contact, and the optical mounting component has higher strength, making it less prone to deformation due to impact or high temperatures. This helps ensure the surface accuracy of the contact surface between the optical path folding element and the optical mounting component, thus guaranteeing the optical quality of the optical path folding element.
[0040] In one possible implementation, the optical mounting component includes a first mounting component and a second mounting component, which are spaced apart. At least a portion of the first mounting component is fixedly connected between the optical path folding element and the mounting slope, and at least a portion of the second mounting component is fixedly connected between the optical path folding element and the mounting slope.
[0041] Understandably, compared to a single, integral optical mounting component (i.e., the first and second mounting components are molded as one piece), when the drive motor is impacted, the stress on the optical mounting component is concentrated and transmitted inward to the first optical element, causing it to be stretched and affecting its surface accuracy, thus reducing optical quality. In this embodiment, the optical mounting component is configured as two independent and separately arranged first and second mounting components. This way, when the drive motor is impacted, the first and second mounting components can withstand stresses in different directions, thereby preventing the first optical element from being stretched by stresses in different directions, thus avoiding a reduction in its surface accuracy and affecting its optical quality.
[0042] In one possible implementation, the first optical element further includes a first lens located on the light-incident side of the optical path folding element, and the first lens has positive optical power. In this way, the first lens can have a light-gathering effect, allowing as much external light as possible to enter the optical path folding element, thereby increasing the overall light intake of the first optical element and thus improving the light intake of subsequent focusing components.
[0043] In one possible implementation, the first optical element further includes a second lens located on the light-emitting side of the optical path folding element, and the second lens has a negative optical power. In this way, the second lens has a scattering effect, allowing it to diffuse as much light emitted from the optical path folding element as possible, thereby increasing the overall light output of the first optical element and improving the light intake of the subsequent focusing assembly.
[0044] In one possible implementation, the projection point of the first axis onto the plane containing the first and second directions is designated as the first point, and the distance between the first point and the output optical axis is less than or equal to 3 millimeters. This closer distance between the first point and the output optical axis helps improve the stabilization accuracy of the image stabilization component.
[0045] In one possible implementation, the drive motor further includes a second bracket and a second drive mechanism. The second bracket is movably connected between the base and the first bracket. The second drive mechanism drives the second bracket and the first bracket to rotate relative to the base around a second axis. The second axis intersects the first axis, passes through the light-emitting hole and the mounting slope, and is parallel to a second direction. The distance between the second axis and the light-emitting axis is less than or equal to 3 mm. This closer distance between the second axis and the light-emitting axis helps improve the image stabilization accuracy of the image stabilization component.
[0046] In one possible implementation, the drive motor further includes a second set of support members, through which the second bracket is slidably connected to the base. The distance between the center point of the second set of support members and the center of gravity of the first bracket, the second bracket, and the first optical element as a whole is less than or equal to 0.3 mm. This closer distance between the center point of the second set of support members and the center of gravity of the first bracket, the second bracket, and the first optical element effectively enhances the anti-interference capability of the drive motor during anti-shake rotation around the second axis. Furthermore, it reduces the power consumption of the drive motor, thus extending the battery life of the electronic device and improving the user experience.
[0047] Fourthly, a camera module is provided. The camera module includes a focusing component, an image sensor, and the aforementioned image stabilization component. The focusing component is located on the light-emitting side of the image stabilization component, and the image sensor is located on the light-emitting side of the focusing component. It is understood that in this embodiment, the first shaft of the drive motor of the camera module is located on the side of the mounting inclined surface near the light-emitting aperture, i.e., the mounting side of the mounting inclined surface. The first shaft is perpendicular to the plane containing the first direction and the second direction. Thus, when the drive motor drives the first optical element to rotate around the first shaft, the focal point offset is small, thereby effectively reducing the impact of focal point offset on the modulation transfer function, which is beneficial to improving the image stabilization accuracy of the entire camera module and improving image quality.
[0048] Fifthly, an electronic device is provided. The electronic device includes a device housing and the aforementioned camera module, with the camera module disposed within the device housing. The camera module of the electronic device in this embodiment has high image stabilization accuracy and high image quality. Attached Figure Description
[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.
[0050] Figure 1 This is a schematic diagram of one embodiment of the electronic device provided in this application; Figure 2 yes Figure 1 A schematic cross-sectional view of one embodiment of the electronic device shown, cut along point AA; Figure 3 yes Figure 2 The diagram shows the structural schematic of the image stabilization component of the camera module in some embodiments; Figure 4 yes Figure 3 The image stabilization component shown is an exploded structural diagram in some embodiments; Figure 5 yes Figure 3 An exploded view of the first optical element of the image stabilization assembly shown in some embodiments; Figure 6 yes Figure 3 A partial cross-sectional structural diagram of one embodiment of the image stabilization component cut along B1-B1 is shown. Figure 7a yes Figure 6 A simplified schematic diagram of the first optical element 1b shown; Figure 7b yes Figure 7a A schematic diagram of the structure shown from another perspective; Figure 7c This is a simplified schematic diagram of the first optical element of the image stabilization component in some embodiments rotating about a first axis to perform image stabilization; Figure 7d yes Figure 7a A simplified schematic diagram showing the first optical element rotating about a first axis for image stabilization; Figure 8 yes Figure 7a A simplified schematic diagram of the first optical element shown; Figure 9a This is a simplified schematic diagram of a first optical element of an image stabilization component rotating about a second axis in some embodiments to perform image stabilization; Figure 9b yes Figure 8 A simplified schematic diagram showing the first optical element rotating about a second axis for image stabilization; Figure 10 yes Figure 3 The diagram shows the structure of the drive motor of the image stabilization component in some embodiments; Figure 11 yes Figure 10 The diagram shows an exploded view of the drive motor in some embodiments. Figure 12 yes Figure 11 The diagram shows an exploded view of the circuit components of the drive motor in some embodiments. Figure 13 yes Figure 12 The diagram shows the structural structure of the circuit components shown. Figure 14 yes Figure 11A schematic diagram of the base of the drive motor from another perspective; Figure 15 yes Figure 10 The diagram shows a partial cross-sectional structure of the drive motor cut along CC in one embodiment. Figure 16 yes Figure 11 A schematic diagram of the assembly structure of the drive motor base, circuit components, and magnetic components from another perspective. Figure 17 yes Figure 11 The diagram shows the assembly structure of the drive motor's base, housing, circuit components, and magnetic components. Figure 18 yes Figure 17 A schematic diagram of the structure shown from another perspective; Figure 19 yes Figure 10 The diagram shows a partial cross-sectional structure of the drive motor cut along DD in one embodiment. Figure 20 yes Figure 11 The diagram shows the structure of the mover of the drive motor in the first embodiment; Figure 21 yes Figure 20 The diagram shows the exploded structure of the mover. Figure 22a yes Figure 21 The diagram shows the structure of the first support of the mover; Figure 22b yes Figure 22a The diagram shows the structure of the first support from another perspective; Figure 23 yes Figure 20 A schematic diagram of a partial cross-sectional structure of one embodiment of the mover cut along EE; Figure 24 yes Figure 21 A schematic diagram of the assembly structure of the first support, the first set of magnetic components, the second set of magnetic components, and multiple first support components of the moving element; Figure 25 yes Figure 24 A schematic diagram of the structure shown from another perspective; Figure 26 yes Figure 21 The diagram shows the structure of the second support of the mover; Figure 27 yes Figure 26 A schematic diagram of the assembly structure of the second bracket and multiple second support members from another perspective; Figure 28 yes Figure 20A schematic diagram of the cross-sectional structure of one embodiment of the mover cut along line F1-F1; Figure 29 yes Figure 20 A schematic diagram of the cross-sectional structure of one embodiment in which the mover is cut along F2-F2 is shown; Figure 30 yes Figure 10 A partial structural schematic diagram of the drive motor shown from another perspective; Figure 31a yes Figure 10 The diagram shows a cross-sectional structure of the drive motor cut along DD in one embodiment. Figure 31b yes Figure 10 The diagram shows a cross-sectional structure of the drive motor cut along CC in one embodiment. Figure 32 yes Figure 10 The diagram shows a cross-sectional structure of the drive motor cut along G1-G1 in one embodiment. Figure 33 yes Figure 10 The diagram shows a cross-sectional structure of the drive motor cut along G2-G2 in one embodiment. Figure 34 yes Figure 10 The diagram shows a cross-sectional structure of the drive motor cut along HH in one embodiment. Figure 35a yes Figure 3 The image stabilization component shown is a cross-sectional structural diagram of one embodiment cut along B1-B1. Figure 35b yes Figure 3 The image stabilization component shown is a cross-sectional structural diagram of one embodiment cut along B2-B2. Figure 36a yes Figure 30 A schematic cross-sectional view of the drive motor in another embodiment; Figure 36b yes Figure 36a A schematic diagram of the cross-sectional structure of the drive motor shown from another perspective; Figure 37 yes Figure 10 A schematic diagram of the cross-sectional structure of another embodiment of the drive motor cut along DD. Figure 38 yes Figure 10 A schematic diagram of the cross-sectional structure of another embodiment of the drive motor cut along CC. Figure 39 yes Figure 3A schematic diagram of the cross-sectional structure of another embodiment of the image stabilization component cut along B1-B1. Figure 40 yes Figure 39 A partially exploded view of the image stabilization component shown. Figure 41 yes Figure 40 A schematic diagram of the assembly structure of the first optical element and optical mounting component of the image stabilization assembly shown; Figure 42 yes Figure 40 A cross-sectional schematic diagram of the assembly structure of the optical mounting components and drive motor of the image stabilization component shown in some embodiments. Figure 43 yes Figure 20 The diagram shown is a structural schematic of the mover in the second embodiment. Figure 44 yes Figure 43 The diagram shows the exploded structure of the mover. Figure 45 yes Figure 44 A schematic diagram of the first support of the mover shown from another perspective; Figure 46 yes Figure 44 A schematic diagram of the second support of the mover from another perspective; Figure 47 yes Figure 10 The diagram shows a cross-sectional view of the drive motor cut along DD in the second embodiment. Figure 48 yes Figure 10 The diagram shows a cross-sectional view of the drive motor cut along CC in the second embodiment. Figure 49 yes Figure 20 The diagram shows a cross-sectional structure of the mover cut along F1-F1 in the third embodiment. Figure 50 yes Figure 20 The diagram shows a cross-sectional structure of the mover cut along F2-F2 in the third embodiment. Figure 51 yes Figure 20 The diagram shown is a structural schematic of the mover in the fourth embodiment; Figure 52 yes Figure 20 The diagram shows a cross-sectional structure of the mover cut along F2-F2 in the fourth embodiment. Figure 53 yes Figure 20 The diagram shown is a structural schematic of the mover in the fifth embodiment; Figure 54yes Figure 20 The diagram shows a cross-sectional structure of the mover cut along F1-F1 in the fifth embodiment. Figure 55 yes Figure 20 The diagram shows a cross-sectional structure of the mover cut along F2-F2 in the fifth embodiment; Figure 56 yes Figure 54 The diagram shows a cross-sectional structure of the mover in other embodiments. Detailed Implementation
[0051] The embodiments of this application are described below with reference to the accompanying drawings.
[0052] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the components can rotate relative to each other after connection. "Sliding connection" refers to a connection where the components can slide relative to each other after connection. The directional terms mentioned in the embodiments of this application, such as "up," "down," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or component 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 the embodiments of this application. "Multiple" means at least two.
[0053] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.
[0054] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0055] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in another embodiment" appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0056] It is understood that the specific embodiments described herein are merely for explaining the relevant invention and not for limiting the invention. It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0057] Figure 1 This is a schematic diagram of one embodiment of the electronic device 1000 provided in this application. Figure 2 yes Figure 1 The diagram shows a cross-sectional view of one embodiment of the electronic device 1000 cut along point AA.
[0058] like Figure 1 and Figure 2 As shown, the electronic device 1000 can be a mobile phone, tablet personal computer, laptop computer, personal digital assistant (PDA), camera, personal computer, laptop computer, in-vehicle equipment, wearable device, augmented reality (AR) glasses, AR helmet, virtual reality (VR) glasses, or VR helmet, etc., that has a camera module. Figure 1 The electronic device 1000 of the illustrated embodiment is described using a mobile phone as an example.
[0059] like Figure 1 As shown, the electronic device 1000 may include a camera module 100, a device housing 200, and a screen 300. The camera module 100 can be a rear-facing camera module or a front-facing camera module. It should be noted that... Figure 1 The accompanying drawings below only schematically illustrate some components included in the electronic device 1000; the actual shape, size, location, and construction of these components are not subject to change. Figure 1As well as the accompanying drawings below. Furthermore, when the electronic device 1000 is a device of some other form, the electronic device 1000 may not include the screen 300.
[0060] For ease of description, the width direction of electronic device 1000 is defined as the X-axis. The length direction of electronic device 1000 is defined as the Y-axis. The thickness direction of electronic device 1000 is defined as the Z-axis. It can be understood that the coordinate system settings of electronic device 1000 can be flexibly configured according to specific practical needs.
[0061] In this embodiment, the device housing 200 may include a frame 201 and a rear cover 202. The rear cover 202 is fixed to the frame 201. For example, the rear cover 202 can be fixedly connected to the frame 201 by adhesive. The rear cover 202 may also be integrally formed with the frame 201, that is, the rear cover 202 and the frame 201 are a single integral structure.
[0062] Alternatively, the screen 300 can be located on the side of the bezel 201 away from the back cover 202. In this case, the screen and the back cover 202 are located on opposite sides of the bezel 201. The screen 300, the bezel 201, and the back cover 202 together enclose the interior of the electronic device 1000. The interior of the electronic device 1000 can be used to house components of the electronic device 1000, such as a battery, receiver, or microphone. The screen 300 can be a flat screen or a curved screen.
[0063] For example, the camera module 100 can be a periscope camera module. The camera module 100 can be located inside the electronic device 1000. The camera module 100 can be fixed to the side of the screen 300 facing the rear cover 202. The rear cover 202 can have a light-transmitting hole 203. The shape of the light-transmitting hole 203 is not limited to the following. Figure 1 The schematic diagram shows a circle. The light-transmitting hole 203 connects the interior of the electronic device 1000 to the exterior. Light from outside the electronic device 1000 can enter its interior through the light-transmitting hole 203. The camera module 100 can capture the ambient light entering the interior of the electronic device 1000.
[0064] Figure 3 yes Figure 2 The image stabilization component of the camera module 100 shown is illustrated in some embodiments. Figure 4 yes Figure 3 The diagram shows an exploded view of the image stabilization component in some embodiments.
[0065] like Figures 2 to 4As shown, the camera module 100 may include an image stabilization component 1, a focusing component 2, and an image sensor 3. Light from outside the electronic device 1000 can enter the interior of the electronic device 1000 through the light-transmitting hole 203, then pass sequentially through the image stabilization component 1 and the focusing component 2, and finally be imaged onto the image sensor 3. For example, the image stabilization component 1, the focusing component 2, and the image sensor 3 can be arranged sequentially along the X-axis.
[0066] In some embodiments, one or more reflective lenses / prisms can be additionally disposed between the focusing component 2 and the image sensor 3 to change the light propagation path between the focusing component 2 and the image sensor 3, so that the light emitted from the focusing component 2 can undergo one or more reflections before finally entering the image sensor 3. In this way, the overall light path of the camera module 100 is lengthened, which is beneficial to increasing the zoom ratio of the camera module 100.
[0067] For example, the image stabilization component 1 may include a drive motor 1a and a first optical element 1b. The first optical element 1b may be mounted on the drive motor 1a. The drive motor 1a can drive the first optical element 1b to rotate about a first axis (not shown) and / or a second axis (not shown) to achieve optical image stabilization (OIS) of the camera module 100 and improve the image quality of the camera module 100.
[0068] For example, the focusing assembly 2 may include a focusing motor (not shown) and a second optical element (not shown). The second optical element may be mounted on the focusing motor. The focusing motor can control the movement of the second optical element along the optical axis to achieve autofocus (AF). The second optical element may include at least one lens. The first and second optical elements may together constitute the optical system of the camera module 100.
[0069] Figure 5 yes Figure 3 The first optical element 1b of the image stabilization component 1 shown is an exploded structural diagram in some embodiments. Figure 6 yes Figure 3 The diagram shows a partial cross-sectional view of one embodiment of the image stabilization component 1 cut along B1-B1.
[0070] like Figure 5 and Figure 6As shown, the first optical element 1b may include an incident surface 101, a reflecting surface 102, and an exiting surface 103. Light can enter the interior of the first optical element 1b through the incident surface 101, be reflected by the reflecting surface 102, and then exit through the exiting surface 103. The optical input axis T1 of the first optical element 1b may be perpendicular to the incident surface 101. The optical output axis T2 of the first optical element 1b may be perpendicular to the exiting surface 103. In this embodiment, the optical input axis T1 of the first optical element 1b may be parallel to the Z-axis direction, and the optical output axis T2 may be parallel to the X-axis direction. The first optical element 1b may include an optical path folding element 104 and a first lens 105. The first lens 105 may be fixed to the light input side of the optical path folding element 104. In this case, the incident surface of the first lens 105 may constitute the incident surface 101 of the first optical element 1b.
[0071] For example, the optical path folding element 104 can be a reflecting prism. The cross-section of the optical path folding element 104 can be triangular. The optical path folding element 104 can include a first surface 1041, a second surface 1042, and a third surface 1043. The first surface 1041 and the third surface 1043 can be perpendicular to each other. The second surface 1042 can be connected between the first surface 1041 and the third surface 1043. The first surface 1041 can be perpendicular to the optical input axis. The third surface 1043 can be perpendicular to the optical output axis. Both the first surface 1041 and the third surface 1043 can be transmissive surfaces. The second surface 1042 can be a reflective surface. In this way, light can enter the interior of the optical path folding element 104 through the first surface 1041, be reflected by the second surface 1042, and then exit through the third surface 1043. At this time, the second surface 1042 of the optical path folding element 104 can constitute the reflective surface 102 of the first optical element 1b. The third surface 1043 of the optical path folding element 104 can form the exit surface 103 of the first optical element 1b.
[0072] For example, the cross-section of the optical path folding element 104 can be an isosceles triangle, that is, the angle between the second surface 1042 and the first surface 1041 can be 45°, and the angle between the second surface 1042 and the third surface 1043 can also be 45°. In this case, after the light is reflected by the second surface 1042, the deflection angle of the light can be 90° (e.g., Figure 6 (As shown). In other embodiments, the angle between the second surface 1042 and the first surface 1041 may be other angles, which are not specifically limited in this application.
[0073] For example, the first lens 105 can be located on the light-incident side of the optical path folding element 104. The first lens 105 can be fixedly connected to the first surface 1041 of the optical path folding element 104 by means of bonding or the like. The first lens 105 can be a lens with positive optical power. In this way, the first lens 105 can have a light-gathering effect, allowing as much external light as possible to enter the optical path folding element 104, thereby increasing the light intake of the entire first optical element 1b and thus improving the light intake of the subsequent focusing assembly 2.
[0074] In some embodiments, the first optical element 1b may further include a second lens 106. The second lens 106 may be a lens with negative optical power. The second lens 106 may be located on the light-emitting side of the optical path folding element 104. The second lens 106 may be fixedly connected to the third surface 1043 of the optical path folding element 104 by means of bonding or the like. In this way, the second lens 106 has a diffusing effect, which can diffuse as much light emitted from the optical path folding element 104 as possible, thereby increasing the light output of the entire first optical element 1b and improving the light intake of the subsequent focusing assembly 2. At this time, the exit surface of the second lens 106 may constitute the exit surface 103 of the first optical element 1b.
[0075] Figure 7a yes Figure 6 A simplified schematic diagram of the first optical element 1b shown. Figure 7b yes Figure 7a The diagram shows the structure from another perspective. It should be noted that... Figure 7a The first optical element 1b in the diagram only shows the optical path folding element 104 and the first lens 105, and the optical path folding element 104 only shows the second surface 1042 (that is, the reflective surface 102 of the first optical element 1b).
[0076] like Figure 7a and Figure 7bAs shown, the first optical element 1b can rotate (i.e., nodding) around the first axis R1. The plane containing the input optical axis T1 and the output optical axis T2 is the reference plane M0. The first axis R1 can be perpendicular to the input optical axis T1 and also perpendicular to the output optical axis T2, meaning the first axis R1 can be perpendicular to the reference plane M0. The intersection of the output optical axis T2 and the reflecting surface 102 is the first intersection point G1. The straight line L0 intersects the edge line of the first lens 105 near the focusing assembly 2 and is parallel to the input optical axis T1. The straight line L0 intersects the output optical axis T2 at the second intersection point G2. Exemplarily, the straight line L0 can coincide with the exit surface 103, meaning the intersection of the exit optical axis T2 and the exit surface 103 is the second intersection point G2. The intersection of the input optical axis T1 and the incident surface 101 is the third intersection point G3. The intersection of the straight line L0 and the incident surface 101 is the fourth intersection point G4. At this point, the first intersection point G1, the second intersection point G2, the third intersection point G3, and the fourth intersection point G4 are all on the reference plane M0. It should be understood that the perpendicularity of the first axis R1 to the input optical axis T1 can be either perfectly perpendicular or approximately perpendicular, for example, with a deviation within 1°. The same definition applies to the perpendicularity of the first axis R1 to the output optical axis T2, and will not be elaborated further here.
[0077] For example, the projection point of the first axis R1 onto the reference plane M0 is the first point. The first point can be located within the area defined by lines L1, L2, and L3. Lines L1 and L2 are both parallel to the output optical axis T2. Line L1 is located on the side of the output optical axis T2 closest to the first lens 105. Line L2 is located on the side of the output optical axis T2 opposite to the first lens 105. Line L1 intersects the reflecting surface 102 at point k1. Line L2 intersects the reflecting surface at point k2. The distances from lines k1 and k2 to the output optical axis T2 are both 3 mm. Line L3 is parallel to the input optical axis T1. The distance between line L3 and the input optical axis T1 is 20 mm.
[0078] It should be noted that the area defined by lines L1, L2, and L3 includes the area enclosed by lines L1, L2, and L3, as well as the boundaries where lines L1, L2, and L3 are located. In other words, the first point can be located on the image side of the reflecting surface 102, and the distance between the first point and the output axis T2 can be less than or equal to 3 mm. The distance between the first point and the second intersection point G2 in the X-axis direction can be less than or equal to 20 mm. In this embodiment, the first axis R1 can pass through the second intersection point G2, that is, the first axis R1 can be located on the output surface 103 of the first optical element 1b.
[0079] Figure 7c This is a simplified schematic diagram of the first optical element 1b of the image stabilization component 1 rotating about a first axis R1 to perform image stabilization in some embodiments. Figure 7d yes Figure 7aThe diagram shows a simplified representation of the first optical element 1b rotating about a first axis R1 for image stabilization. It should be noted that... Figure 7c and Figure 7d The illustrations on the left are schematic diagrams of the first optical element 1b shaking and image stabilization not being turned on, while the illustrations on the right are schematic diagrams of the first optical element 1b shaking and image stabilization being turned on.
[0080] like Figure 7a , Figure 7c as well as Figure 7d As shown, when the electronic device 1000 vibrates in a direction parallel to the reference plane M0, and the drive motor 1a is not stabilizing, the focal point of the first optical element 1b is the first original focal point P0. It should be understood that the light emitted from the first optical element 1b can generate multiple focal points; that is, the drive motor 1a has multiple first original focal points P0 when stabilization is not enabled. Only one of these first original focal points P0 is shown here. When the electronic device 1000 vibrates in a direction parallel to the reference plane M0, and the drive motor 1a is stabilizing, the drive motor 1a can drive the first optical element 1b to rotate around the first axis R1 to compensate for image drift on the image plane caused by the vibration of the electronic device 1000, thereby achieving image stabilization.
[0081] Understandably, in some embodiments, the first axis R1' is located on the reflective surface 102 of the first optical element 1b, or on the side of the reflective surface 102 facing away from the emission surface 103. However, after the first optical element 1b rotates around the first axis R1' for image stabilization, the first focal point P1' generated by the first optical element 1b has a large offset compared to the first original focal point P0, resulting in a significant decrease in the overall modulation transfer function (MTF) of the camera module 100, which affects the image quality.
[0082] In this embodiment, the first axis R1 can be located on the side of the reflecting surface 102 facing the exiting surface 103, that is, on the image side of the reflecting surface 102 (in Figure 7a (That is, the right side of the reflective surface 102). In this way, the first axis R1 is located on the side of the reflective surface 102 of the first optical element 1b facing the emission surface 103. After the first optical element 1b rotates around the first axis R1 for image stabilization, the offset of the first focal point P1 generated by the first optical element 1b compared with the first original focal point P0 is smaller. This is beneficial to improving the image stabilization accuracy of the camera module 100, while reducing the impact of the focal point offset on the modulation transfer function, which is beneficial to improving the image quality.
[0083] Furthermore, in this embodiment, the first axis R1 can pass through the second intersection point G2, meaning that the first axis R1 can be located on the exit surface 103 of the first optical element 1b. This results in a smaller focal shift caused by the rotation of the first optical element 1b around the first axis R1, which helps to further reduce the impact of the focal shift on the modulation transfer function, thereby further improving image quality.
[0084] Figure 8 yes Figure 7a A simplified schematic diagram of the first optical element 1b shown. Figure 9a This is a simplified schematic diagram of the first optical element 1b of the image stabilization component 1 rotating about a second axis R2 to perform image stabilization in some embodiments. Figure 9b yes Figure 8 The diagram shows a simplified representation of the first optical element 1b rotating about the second axis R2 for image stabilization. It should be noted that... Figure 8 The first optical element 1b in the diagram only shows the optical path folding element 104 and the first lens 105, and the optical path folding element 104 only shows the second surface 1042 (that is, the reflective surface 102 of the first optical element 1b). Figure 9a and Figure 9b The illustrations on the left are schematic diagrams of the first optical element 1b shaking and image stabilization not being turned on, while the illustrations on the right are schematic diagrams of the first optical element 1b shaking and image stabilization being turned on.
[0085] like Figures 8 to 9b As shown, the first optical element 1b can rotate (i.e., tilt) around the second axis R2. The second axis R2 can be parallel to the output light axis T2, meaning it can be parallel to the X-axis. The distance between the second axis R2 and the output light axis T2 can be less than or equal to 3 mm, meaning the second axis R2 can be located within a cylindrical space with a radius of 3 mm centered on the output light axis T2. For example, the second axis R2 can coincide with the output light axis T2. It should be understood that the parallelism between the second axis R2 and the output light axis T2 can be completely parallel or approximately parallel, for example, with a deviation within 1°. When the electronic device 1000 shakes in a direction parallel to the reference plane M0, and the first optical element 1b is not stabilized, the exit surface M1 of the image stabilization component 1 can be parallel to the incident surface M2 of the focusing component 2. Specifically, the exit surface M1 of the image stabilization component 1 is parallel to the exit surface 103 of the first optical element 1b. When the drive motor 1a activates image stabilization, the drive motor 1a can drive the first optical element 1b to rotate around the second axis R2 to compensate for image drift on the image plane caused by the shaking of the electronic device 1000, thereby achieving image stabilization.
[0086] Understandably, in some embodiments, the second axis R2' coincides with the optical input axis G1 of the first optical element 1b, meaning the second axis R2' can be parallel to the Z-axis direction. However, when the first optical element 1b rotates around the second axis R2', the exit surface M1' of the image stabilization component 1 forms an angle with the incident surface M2 of the focusing component 2, resulting in a large tilt angle between the first optical element 1b and the focusing component 2. This leads to a significant decrease in the optical quality of the camera module 100, resulting in lower image quality. Simultaneously, the large focus shift causes a significant decrease in the overall modulation transfer function of the camera module 100, further affecting image quality.
[0087] In this embodiment, the second axis R2 can be parallel to the light output axis T2, that is, the second axis R2 can be perpendicular to the exit surface 103 of the first optical element 1b and the incident surface M2 of the focusing assembly 2. In this way, when the first optical element 1b rotates around the second axis R2, the exit surface M1 of the image stabilization assembly 1 can always remain parallel to the light output axis T2 and perpendicular to the incident surface M2 of the focusing assembly 2. This can effectively reduce the tilt angle between the first optical element 1b and the focusing assembly 2, improve the image stabilization accuracy of the camera module 100, and result in a smaller decrease in the optical quality of the camera module 100. At the same time, the focus shift is small, which helps to reduce the impact of focus shift on the modulation transfer function, thereby improving the imaging quality of the camera module 100.
[0088] In addition, the distance between the second axis R2 and the light output axis T2 can be less than or equal to 3 mm, so that the second axis R2 can be set close to the light output axis T2, thereby better reducing the impact of focus shift on the modulation transfer function and improving the imaging quality of the camera module 100.
[0089] Please refer to the following: Figure 2 , Figure 7a as well as Figure 8 It is understandable that, compared to camera modules that additionally place a reflective prism between the focusing component and the image sensor and control the displacement of the image sensor to achieve optical image stabilization, the module size is relatively large. In this embodiment, the camera module 100 achieves optical image stabilization by setting a drive motor 1a to drive the first optical element 1b to rotate around the first axis R1, and / or drive the first optical element 1b to rotate around the second axis R2. Therefore, there is no need to additionally place a prism between the focusing component 2 and the image sensor 3, resulting in a smaller module size, which is beneficial for miniaturizing the camera module 100.
[0090] Secondly, in this embodiment, the first axis R1 is perpendicular to both the input optical axis T1 and the output optical axis T2 (i.e., parallel to the Y-axis in this embodiment), and is located on the side of the reflective surface 102 of the first optical element 1b closest to the output surface 103, i.e., the image side of the reflective surface 102. The second axis R2 is parallel to the output optical axis T2. In this way, whether the first optical element 1b rotates around the first axis R1 or around the second axis R2, the focal point shift is small. At the same time, the output surface M1 of the image stabilization component 1 can always remain parallel to the incident surface M2 of the focusing component 2, thereby effectively improving the image stabilization accuracy of the camera module 100, reducing the impact of focal point shift and tilt angle on the overall modulation transfer function of the camera module 100, and improving the imaging quality of the camera module 100.
[0091] In other words, the camera module 100 in this embodiment performs image stabilization by controlling the first optical element 1b to rotate around the first axis R1 and / or the second axis R2. The first axis R1 is parallel to the Y-axis direction, the second axis R2 is parallel to the X-axis direction, and the first axis R1 is located on the side of the reflective surface 102 facing the output surface 103 (that is, the image side of the reflective surface 102). This makes the focus shift of the camera module 100 small when performing optical image stabilization, thereby achieving high image stabilization accuracy and good image quality.
[0092] The above text describes the structure of the electronic device 1000, the structure of the camera module 100, and the image stabilization principle of the first optical element 1b of the camera module 100. The following text will describe the structure of the drive motor 1a in the camera module 100 in detail with reference to the relevant figures.
[0093] Figure 10 yes Figure 3 The diagram shows the structure of the drive motor 1a of the anti-shake component 1 in some embodiments. Figure 11 yes Figure 10 The diagram shows an exploded view of the drive motor 1a in some embodiments.
[0094] like Figure 10 and Figure 11 As shown, the drive motor 1a may include a base 10, a housing 20, a circuit assembly 30, a magnetic chuck 40, and a mover 50. The base 10 and the housing 20 can together constitute the stator of the drive motor 1a. It should be understood that in this embodiment, the width direction of the drive motor 1a, which is also the width direction of the electronic device 1000, is the X-axis direction. The length direction of the drive motor 1a, which is also the length direction of the electronic device 1000, is the Y-axis direction. The thickness direction of the drive motor 1a, which is also the thickness direction of the electronic device 1000, is the Z-axis direction. In other embodiments, the coordinate system of the drive motor 1a can be flexibly set according to specific actual needs.
[0095] Figure 12 yes Figure 11 The diagram shows an exploded view of the circuit assembly 30 of the drive motor 1a in some embodiments. Figure 13 yes Figure 12 The schematic diagram of the circuit component 30 shown.
[0096] like Figure 12 and Figure 13 As shown, the circuit assembly 30 may include a circuit board 31, a coil 32, a position sensor 33, a first reinforcing plate 34, and a second reinforcing plate 35. Both the coil 32 and the position sensor 33 can be fixed to the circuit board 31 by means of soldering or other methods. Both the coil 32 and the position sensor 33 can be electrically connected to the circuit board 31. The circuit board 31 may be a flexible circuit board. The position sensor 33 may be a Hall effect sensor. In other embodiments, the circuit board 31 may also be a rigid circuit board or a rigid-flex circuit board. The position sensor 33 may also be other types of sensors.
[0097] Exemplarily, the circuit board 31 may include a main board 31a and an extension board 31b. The main board 31a may include a first sub-board 311, a second sub-board 312, and a third sub-board 313. The first sub-board 311 and the third sub-board 313 may be arranged opposite each other and spaced apart. The second sub-board 312 may be fixedly connected between the first sub-board 311 and the third sub-board 313. In this case, the first sub-board 311, the second sub-board 312, and the third sub-board 313 may generally form a U-shaped structure. The extension board 31b may be fixedly connected to the third sub-board 313 and bent relative to the third sub-board 313 in a direction toward the first sub-board 311. It should be understood that, for ease of description of the specific structure and shape of the circuit board 31, this embodiment describes the circuit board 31 in four parts, but this does not affect the fact that the circuit board 31 is a one-piece molded structure, that is, the first sub-board 311, the second sub-board 312, the third sub-board 313, and the extension board 31b may be integrally molded. In other embodiments, the first sub-board 311, the second sub-board 312, the third sub-board 313 and the extension board 31b can all be independent rigid circuit boards 31, and they can also be electrically connected to each other through conductive components such as wires.
[0098] Exemplarily, coil 32 may include a first driving coil 321 and a second driving coil 322. The first driving coil 321 may be fixed to the surface of the second sub-plate 312 facing the first sub-plate 311. The second driving coil 322 may include a first sub-coil 3221 and a second sub-coil 3222. The first sub-coil 3221 may be fixed to the surface of the first sub-plate 311 facing the third sub-plate 313. The second sub-coil 3222 may be fixed to the surface of the third sub-plate 313 facing the first sub-plate 311.
[0099] For example, the position sensor 33 may include a first sensor 331, a second sensor 332, and a third sensor 333. The first sensor 331 may be fixed to the second sub-board 312 and located within the coil hole of the first drive coil 321. The second sensor 332 may be fixed to the first sub-board 311 and located within the coil hole of the first sub-coil 3221. The third sensor 333 may be fixed to the third sub-board 313 and located within the coil hole of the second sub-coil 3222.
[0100] Exemplarily, the first reinforcing plate 34 can be fixed to the surface of the second sub-board 312 facing away from the first drive coil 321. The shape of the first reinforcing plate 34 can be adapted to the shape of the second sub-board 312. The first reinforcing plate 34 can structurally reinforce the second sub-board 312. The second reinforcing plate 35 can be fixed to the surface of the extension plate 31b facing away from the first sub-board 311. The shape of the second reinforcing plate 35 can be adapted to the shape of the extension plate 31b. The second reinforcing plate 35 can structurally reinforce the extension plate 31b. In other embodiments, the circuit assembly 30 may not include the first reinforcing plate 34 and / or the second reinforcing plate 35.
[0101] Figure 14 yes Figure 11 A schematic diagram of the base 10 of the drive motor 1a shown from another perspective.
[0102] like Figure 14 As shown, the base 10 can be generally rectangular. The base 10 may include a frame portion 10a and a bottom portion 10b. The frame portion 10a can be fixedly connected to the outer edge of the bottom portion 10b, and together with the bottom portion 10b, encloses an accommodating space 10c. The accommodating space 10c can be used to accommodate at least a portion of the mover 50, at least a portion of the coil 32, and the first optical element 1b. For ease of understanding, Figure 14 The base 10 is schematically divided into a frame 10a and a bottom 10b by dashed lines.
[0103] For example, the frame portion 10a may include a first side portion 11, a second side portion 12, and a third side portion 13. The first side portion 11 may be opposite to and spaced apart from the third side portion 13. The second side portion 12 may be fixedly connected between the first side portion 11 and the third side portion 13. In this case, the frame portion 10a may be approximately U-shaped. The first side portion 11 may be provided with a first clearance hole 111. The second side portion 12 may be provided with a second clearance hole 121. The third side portion 13 may be provided with a third clearance hole 131. The first clearance hole 111, the second clearance hole 121, and the third clearance hole 131 may all penetrate the inner and outer peripheral sidewalls of the frame portion 10a and communicate with the receiving space 10c of the base 10.
[0104] For example, the first side portion 11 may be provided with a first groove 112 and a second groove 113. The first groove 112 and the second groove 113 may be spaced apart along the Z-axis direction. The openings of the first groove 112 and the second groove 113 may both be formed on the surface of the first side portion 11 facing away from the second side portion 12. The portion of the first side portion 11 located between the first groove 112 and the second groove 113 may be recessed in the direction close to the second side portion 12 to form a first clearance groove 114. The bottom wall of the first clearance groove 114 may be generally arc-shaped.
[0105] Exemplarily, the third side portion 13 may be provided with a third groove 132 and a fourth groove 133. The third groove 132 and the fourth groove 133 may be spaced apart along the Z-axis direction. The openings of the third groove 132 and the fourth groove 133 may both be formed on the surface of the third side portion 13 facing away from the second side portion 12. The portion of the third side portion 13 located between the third groove 132 and the fourth groove 133 may be recessed in the direction close to the second side portion 12 to form a second clearance groove 134. The bottom wall of the second clearance groove 134 may be generally arc-shaped. The shape of the second clearance groove 134 may be the same as the shape of the first clearance groove 114.
[0106] For example, at least two of the first groove 112, the second groove 113, the third groove 132 and the fourth groove 133 may be “V” grooves.
[0107] Figure 15 yes Figure 10 The diagram shows a partial cross-sectional view of one embodiment of the drive motor 1a cut along CC. Figure 16 yes Figure 11 The diagram shows the assembly structure of the base 10 of the drive motor 1a, the circuit assembly 30, and the magnetic attractor 40 from another perspective. For ease of understanding, Figure 15 The base 10 is schematically divided into the frame 10a and the bottom 10b by dashed lines.
[0108] like Figures 14 to 16As shown, the main body plate 31a of the circuit board 31 can be disposed around the outer peripheral side of the frame portion 10a and fixedly connected to the frame portion 10a. The first sub-plate 311, the second sub-plate 312, and the third sub-plate 313 can be sequentially fixed to the first side portion 11, the second side portion 12, and the third side portion 13. At this time, at least a portion of the first drive coil 321 can be located within the second clearance hole 121. At least a portion of the first sub-coil 3221 can be located within the first clearance hole 111. At least a portion of the second sub-coil 3222 can be located within the third clearance hole 131. In this way, by fixing the main body plate 31a of the circuit board 31 to the outer peripheral side of the frame portion 10a, and placing the first drive coil 321, the first sub-coil 3221 and the second sub-coil 3222 in the second clearance hole 121, the first clearance hole 111 and the third clearance hole 131 respectively, the width and length dimensions of the frame portion 10a can be effectively utilized to place the coil 32, thereby improving the space utilization rate inside the drive motor 1a and facilitating the miniaturization of the drive motor 1a.
[0109] For example, the extension plate 31b of the circuit board 31 can be fixed to the surface of the bottom 10b facing away from the receiving space 10c. A portion of the extension plate 31b can extend relative to the base 10. The magnetic member 40 can be fixedly connected to the surface of the first reinforcing plate 34 facing away from the circuit board 31. The material of the magnetic member 40 can be a magnetic material.
[0110] In some embodiments, a portion of the outer peripheral side of the frame portion 10a may be recessed along a direction close to the inner peripheral side to form a first groove 14. The first groove 14 can be used to accommodate the main body plate 31a of the circuit board 31. A portion of the bottom 10b facing away from the frame portion 10a may also be recessed inward to form a second groove 15. The second groove 15 can communicate with the first groove 14. The second groove 15 can be used to accommodate the extension plate 31b of the circuit board 31. In this way, by providing the first groove 14 and the second groove 15 on the base 10 for accommodating the main body plate 31a and the extension plate 31b, the overall structure of the circuit board 31 and the base 10 becomes more compact.
[0111] Figure 17 yes Figure 11 The diagram shows the assembly structure of the base 10, housing 20, circuit assembly 30, and magnetic 40 of the drive motor 1a. Figure 18 yes Figure 17 The diagram shown is a structural schematic from another perspective. Figure 19 yes Figure 10 The diagram shows a partial cross-sectional view of one embodiment of the drive motor 1a cut along DD.
[0112] like Figures 17 to 19As shown, the housing 20 can be fixed to the base 10. The housing 20 may be provided with a light inlet 20a and a light outlet 20b. Both the light inlet 20a and the light outlet 20b can connect the accommodating space 10c of the base 10 with the external space of the drive motor 1a. The projection of the light inlet 20a in the Z-axis direction can overlap with the bottom 10b of the base 10. The projection of the light outlet 20b in the X-axis direction can overlap with the second side 12 of the base 10. Light can enter the drive motor 1a through the light inlet 20a along a first direction and exit the drive motor 1a through the light outlet 20b along a second direction. The first direction can intersect with the second direction. For example, the first direction can be perpendicular to the second direction. The first direction can be parallel to the Z-axis direction. The second direction can be parallel to the X-axis direction. The third direction can be perpendicular to the plane containing the first and second directions, i.e., parallel to the Y-axis direction. In other embodiments, the second direction may not be perpendicular to the first direction.
[0113] Exemplarily, the housing 20 may include an outer shell 21, a base plate 22, and a cover plate 23. The outer shell 21 may be fixed around the outer peripheral side of the frame portion 10a of the base 10 by means of adhesive bonding or other methods. The base plate 22 may include a connected main body portion 221 and an extension portion 222. The main body portion 221 of the base plate 22 may be fixed to the surface of the bottom 10b of the base 10 facing away from the accommodating space 10c. The extension portion 222 may connect with the second sliding groove 113 of the first side portion 11 of the frame portion 10a (see reference...). Figure 14 (As shown) the spaced intervals, and the fourth groove 133 spaced intervals from the third side 13. At this time, the housing 20 can enclose at least a portion of the circuit assembly 30 and the base 10. A portion of the extension plate 31b of the circuit board 31 can be exposed relative to the housing 20 for electrical connection to an external power source.
[0114] For example, the cover plate 23 may include a main body 231, a first branch 232, and a second branch 233. The first branch 232 and the second branch 233 may be located on the same side of the main body 231 and fixedly connected to the main body 231. The first branch 232 may be spaced apart from the second branch 233. The main body 231 may be fixedly connected to the top surface of the frame portion 10a of the base 10. The light inlet 20a may be located in the main body 231. The first branch 232 may be connected to the first groove 112 of the first side portion 11 (see also...). Figure 14 (As shown) The second branch 233 can be spaced apart from the third slide groove 132 of the third side 13. At this time, the first branch 232, the second branch 233, the extension portion 222 of the base plate 22 and the outer shell 21 can together surround the light outlet hole 20b of the shell 20.
[0115] In some embodiments, the housing 20 may further include a light-shielding gasket 24. The light-shielding gasket 24 may be fixed to the surface of the main body 231 of the cover plate 23 facing away from the base 10. The light-shielding gasket 24 may be provided with a first through hole 241. The first through hole 241 may communicate with the light inlet hole 20a.
[0116] The above text describes some of the structures of the drive motor 1a. The following text will describe the specific structure of the mover 50 of the drive motor 1a in various embodiments, in conjunction with the relevant accompanying drawings.
[0117] First implementation method: Figure 20 yes Figure 11 The diagram shows the structure of the mover 50 of the drive motor 1a in the first embodiment. Figure 21 yes Figure 20 The exploded structural diagram of the mover 50 is shown.
[0118] like Figure 20 and Figure 21 As shown, the mover 50 may include a first bracket 51, a second bracket 52, a first set of magnetic components 53, a second set of magnetic components 54, a first set of support components 55, and a second set of support components 56. For ease of understanding, Figure 21 The first set of support members 55 and the second set of support members 56 are outlined by dashed lines.
[0119] The first set of support members 55 may include multiple first support members. Each first support member may include one or more first balls 551 and one or more second balls 552. The sizes of the multiple first balls 551 and the multiple second balls 552 may not be identical. The second set of support members 56 may include multiple second support members. Each second support member may include at least three third balls 561. The sizes of the multiple third balls 561 may be identical. In this embodiment, the number of first balls 551 and second balls 552 may both be three. The number of third balls 561 may be four.
[0120] Figure 22a yes Figure 21 The diagram shows the structure of the first support 51 of the mover 50. Figure 22b yes Figure 22a The diagram shows the structure of the first support 51 from another perspective. Figure 23 yes Figure 20 The diagram shows a partial cross-sectional view of one embodiment of the mover 50 cut along EE.
[0121] like Figures 22a to 23As shown, the first bracket 51 may include a support portion 511, a first sidewall 512, a second sidewall 513, a third sidewall 514, a first connecting portion 515, and a second connecting portion 516. The first sidewall 512 and the second sidewall 513 may be arranged opposite each other and spaced apart. The third sidewall 514 may be fixedly connected between the first sidewall 512 and the second sidewall 513. In this case, the first sidewall 512, the second sidewall 513, and the third sidewall 514 may have a roughly U-shaped structure. The support portion 511 may be located between the first sidewall 512 and the second sidewall 513, and fixedly connected to the top of the first sidewall 512, the second sidewall 513, and the third sidewall 514. The surface of the support portion 511 facing away from the third sidewall 514 may form a mounting slope 511a of the support portion 511. The mounting slope 511a may be angled with the Z-axis direction. The angle between the surface of the support portion 511 facing away from the third side wall 514 and the Z-axis direction can be 45°. At this time, the first side wall 512, the second side wall 513, and the support portion 511 can jointly enclose the installation space 51a of the first bracket 51.
[0122] For example, the first connecting portion 515 may be located on the side of the first sidewall 512 facing away from the second sidewall 513, and fixedly connected to the end of the first sidewall 512 away from the third sidewall 514. The second connecting portion 516 may be located on the side of the second sidewall 513 facing away from the first sidewall 512, and fixedly connected to the end of the second sidewall 513 away from the third sidewall 514. It should be understood that in this embodiment, the first bracket 51 is described in six parts, but this does not affect the fact that the first bracket 51 is a one-piece structure, that is, the support portion 511, the first sidewall 512, the third sidewall 514, the second sidewall 513, the first connecting portion 515, and the second connecting portion 516 can be integrally formed. In other embodiments, the angle between the surface of the support portion 511 facing away from the third sidewall 514 and the Z-axis direction can also be other degrees. This application does not specifically limit this.
[0123] For example, the first sidewall 512 may be provided with a first mounting groove 5121. The opening of the first mounting groove 5121 may be formed on the surface of the first sidewall 512 facing away from the second sidewall 513. The second sidewall 513 may be provided with a second mounting groove 5131, and the opening of the second mounting groove 5131 may be formed on the surface of the second sidewall 513 facing away from the first sidewall 512. The third sidewall 514 may be provided with a third mounting groove 5141. The opening of the third mounting groove 5141 may be formed on the surface of the third sidewall 514 facing away from the support portion 511.
[0124] Exemplarily, the surface of the first connecting portion 515 facing the third sidewall 514 is a first surface 5151. The first surface 5151 may be arc-shaped. The first connecting portion 515 may be provided with a first sliding groove 5152. The opening of the first sliding groove 5152 may be formed on the first surface 5151. The shape of the first sliding groove 5152 may be arc-shaped. The surface of the second connecting portion 516 facing the third sidewall 514 is a second surface 5161. The shape of the second surface 5161 may be the same as the shape of the first surface 5151. The second connecting portion 516 may be provided with a second sliding groove 5162. The opening of the second sliding groove 5162 may be formed on the second surface. The shape of the second sliding groove 5162 may be arc-shaped.
[0125] Figure 24 yes Figure 21 The diagram shows the assembly structure of the first support 51, the first set of magnetic components 53, the second set of magnetic components 54, and multiple first support components of the mover 50. Figure 25 yes Figure 24 The diagram shown is a structural schematic from another perspective.
[0126] like Figure 24 and Figure 25 As shown, the first set of magnetic components 53 can be fixed in the third mounting groove 5141 of the third sidewall 514. The second set of magnetic components 54 may include a first sub-magnetic component 541 and a second sub-magnetic component 542. The first sub-magnetic component 541 can be fixed in the first mounting groove 5121 of the first sidewall 512. The second sub-magnetic component 542 can be fixed in the second mounting groove 5131 of the second sidewall 513. The magnetic field direction of the first sub-magnetic component 541 can be opposite to that of the second sub-magnetic component 542. At this time, the first set of magnetic components 53 can be arranged in the second direction (i.e., the X-axis direction in this embodiment) with the mounting slope 511a of the first bracket 51. The first sub-magnetic component 541, the mounting slope 511a of the first bracket 51, and the second sub-magnetic component 542 can be arranged sequentially in the third direction (i.e., the Y-axis direction in this embodiment).
[0127] Exemplarily, the first group of magnetic components 53 may include a first magnet 531 and a second magnet 532. Both the first magnet 531 and the second magnet 532 can be unipolar magnets. The polarization direction of the first magnet 531 may be opposite to that of the second magnet 532. Here, polarization direction refers to the direction in which the N pole points to the S pole within the same magnet. For example, the portion of the first magnet 531 facing the first sidewall 512 is the S pole, and the portion of the first magnet 531 facing away from the first sidewall 512 is the N pole. The portion of the second magnet 532 facing the first sidewall 512 can be the N pole, and the portion of the second magnet 532 facing away from the first sidewall 512 can be the S pole. The first magnet 531 and the second magnet 532 may be arranged along the Z-axis. The structure of the first sub-magnetic component 541 and the second sub-magnetic component 542 of the second group of magnetic components 54 is substantially the same as the structure of the first group of magnetic components 53; the identical parts will not be described again. In some embodiments, the first group of magnetic components 53 may also include only the first magnet 531. The first magnet 531 can also be a bipolar magnet, meaning that the first magnet 531 can simultaneously include two N poles and two S poles. The two N poles and two S poles can together form a magnetic field.
[0128] For example, multiple first balls 551 in the plurality of first support members can be disposed within the first sliding groove 5152 of the first connecting portion 515. The first sliding groove 5152 can be a "V" shaped groove, that is, the cross-sectional shape of the first sliding groove 5152 is "V". In this case, the plurality of first balls 551 and the first sliding groove 5152 can be tightly fitted. For example, the size of the first balls 551 located at both ends of the first sliding groove 5152 can be slightly larger than the size of the other first balls 551 in the first sliding groove 5152. In this way, the smaller first balls 551 can increase the span between the first balls 551 located at both ends of the first sliding groove 5152, and at the same time, it can also prevent the plurality of first balls 551 from getting stuck when sliding in the first sliding groove 5152.
[0129] For example, multiple second balls 552 in the plurality of first support members can be disposed within the second sliding groove 5162 of the second connecting portion 516. The second sliding groove 5162 can be a "U"-shaped groove, that is, the cross-sectional shape of the second sliding groove 5162 is "U". In this case, the plurality of second balls 552 and the second sliding groove 5162 can be loosely fitted. For example, the size of the second balls 552 located at both ends of the second sliding groove 5162 can be slightly larger than the size of the other second balls 552 in the first sliding groove 5152.
[0130] In some embodiments, the mover 50 may further include a first reinforcing member 57. The first reinforcing member 57 may be a steel sheet. The first reinforcing member 57 may be embedded inside the first bracket 51 by means of injection molding or the like. Part of the first reinforcing member 57 may be exposed through the first mounting groove 5121, the second mounting groove 5131, and the third mounting groove 5141 (see reference). Figure 22a and Figure 22b (As shown). In this way, the first reinforcing member 57 can enhance the structural strength of the first support 51, which is beneficial to extending the service life of the first support 51. In some other embodiments, the first reinforcing member 57 may also be magnetically conductive, thereby enhancing the magnetic field strength of the first set of magnetic members 53 and the second set of magnetic members 54.
[0131] In some embodiments, the first sliding groove 5152 may also be a "U"-shaped groove, and the second sliding groove 5162 may also be a "V"-shaped groove. Alternatively, both the first sliding groove 5152 and the second sliding groove 5162 may be "V"-shaped grooves. In other words, at least one of the first sliding groove 5152 and the second sliding groove 5162 may be a "V"-shaped groove.
[0132] Figure 26 yes Figure 21 The diagram shows the structure of the second support 52 of the mover 50. Figure 27 yes Figure 26 The second bracket 52 and the second set of support members 56 are shown in a schematic diagram of the assembly structure from another perspective.
[0133] like Figure 26 and Figure 27 As shown, the second bracket 52 may include a first part 521, a second part 522, and a third part 523. The first part 521 and the second part 522 may be arranged opposite to each other and spaced apart. The shape of the first part 521 and the shape of the second part 522 may be approximately the same. The third part 523 may be fixedly connected between the first part 521 and the second part 522.
[0134] For example, the first portion 521 may include a first end 5211, a middle portion 5212, and a second end 5213. The middle portion 5212 may be fixedly connected between the first end 5211 and the second end 5213. The middle portion 5212 may protrude along one side relative to the first end 5211 and the second end 5213. In this case, the first end 5211, the middle portion 5212, and the second end 5213 may together enclose the first space 521a.
[0135] For example, the middle portion 5212 of the first portion 521 may be provided with a first guide groove 5214. The projection of the opening of the first guide groove 5214 in the X-axis direction may overlap with the first portion 521. The opening of the first guide groove 5214 may communicate with the first space 521a. The first guide groove 5214 may be an arc-shaped groove. The first end portion 5211 of the first portion 521 may be provided with a third guide groove 5215. The second end portion 5213 of the first portion 521 may be provided with a fourth guide groove 5216. The direction in which the opening of the third guide groove 5215 faces may be the same as the direction in which the opening of the fourth guide groove 5216 faces, and opposite to the direction in which the opening of the first guide groove 5214 faces.
[0136] For example, the second part 522 may include a first end 5221, a middle part 5222, and a second end 5223. The structure of the second part 522 is substantially the same as that of the first part 521, and the identical parts will not be described again. The first end 5221, the middle part 5222, and the second end 5223 of the second part 522 can together enclose a second space 522a. The middle part 5222 of the second part 522 may be provided with a second guide groove 5224. The projection of the opening of the second guide groove 5224 in the X-axis direction may overlap with the second part 522. The second guide groove 5224 can communicate with the second space 522a. The second guide groove 5224 can be an arc-shaped groove. The first end 5221 of the second part 522 may be provided with a fifth guide groove 5225. The second end 5223 of the second part 522 may be provided with a sixth guide groove 5226. The opening of the fifth guide groove 5225 can be oriented in the same direction as the opening of the sixth guide groove 5226 and the opening of the third guide groove 5215, and opposite to the opening of the second guide groove 5224.
[0137] For example, the first end 5211 of the first portion 521 may be disposed opposite to the first end 5221 of the second portion 522. The third portion 523 may be fixedly connected between the second end 5213 of the first portion 521 and the second end 5223 of the second portion 522. In this case, the second bracket 52 may be approximately U-shaped.
[0138] For example, multiple second support members (i.e. multiple third balls 561 in this embodiment) can be provided one-to-one in the third guide groove 5215, the fourth guide groove 5216, the fifth guide groove 5225 and the sixth guide groove 5226.
[0139] Figure 28 yes Figure 20 The diagram shows a cross-sectional structure of the mover 50 cut along line F1-F1 in one embodiment. Figure 29 yes Figure 20The diagram shows a cross-sectional structure of one embodiment of the mover 50 cut along F2-F2.
[0140] like Figure 28 and Figure 29 As shown, the first connecting portion 515 of the first bracket 51 can be installed in the first space 521a of the first part 521. The first connecting portion 515 can be rotatably connected to the first part 521 of the second bracket 52 via a plurality of first ball bearings 551, that is, the plurality of first ball bearings 551 can be connected between the first connecting portion 515 and the wall of the first space 521a. At this time, the first part 521 can partially surround the first connecting portion 515. In this way, the structure of the first part 521 and the first connecting portion 515 is more compact, which is conducive to the miniaturization of the drive motor 1a.
[0141] Exemplarily, the opening of the first sliding groove 5152 of the first connecting portion 515 and the opening of the first guide groove 5214 of the first portion 521 can be arranged opposite to each other. The first sliding groove 5152 and the first guide groove 5214 can together form the first ball groove 501. The first ball groove 501 can be arc-shaped. In this case, the center of the circle containing the centers of the plurality of first balls 551 is the first rotation center O1. The first connecting portion 515 of the first bracket 51 can rotate relative to the first portion 521 of the second bracket 52 around the first rotation center O1. It should be understood that when the sizes of the plurality of first balls 551 are not exactly the same (for example, the size of the first balls 551 located at both ends of the first ball groove 501 is larger than the size of the other first balls 551), the center of the circle containing the centers of the plurality of larger first balls 551 can be taken as the first rotation center O1. In some embodiments, the center of the circle containing the groove wall fitting curve of the first ball groove 501 can also be taken as the first rotation center O1.
[0142] For example, the second connecting portion 516 of the first bracket 51 can be installed in the second space 522a of the second portion 522. The second connecting portion 516 can be rotatably connected to the second portion 522 of the second bracket 52 via a plurality of second balls 552. At this time, the second portion 522 can partially surround the second connecting portion 516.
[0143] For example, the opening of the second sliding groove 5162 of the second connecting portion 516 and the opening of the second guide groove 5224 of the second portion 522 can be arranged opposite to each other. The second sliding groove 5162 and the second guide groove 5224 can together form a second ball groove 502. The second ball groove 502 can be arc-shaped. In this case, the center of the circle containing the centers of the plurality of second balls 552 constitutes a second rotation center O2. The second connecting portion 516 of the first bracket 51 can rotate relative to the second portion 522 of the second bracket 52 around the second rotation center O2.
[0144] Exemplarily, the line connecting the first rotation center O1 and the second rotation center O2 may coincide with the first axis R1. The first axis R1 may be parallel to the Y-axis direction. The first bracket 51 may rotate relative to the second bracket 52 about the first axis R1. Exemplarily, the first axis R1 may pass through the first connecting portion 515 and the second connecting portion 516. In some embodiments, the first axis R1 may not pass through the first connecting portion 515 and the second connecting portion 516. The first axis R1 may also be located on the side of the first connecting portion 515 and the second connecting portion 516 opposite to the mounting inclined surface 511a.
[0145] For example, one of the first guide groove 5214 and the second guide groove 5224 can be a "V" shaped groove. This allows for two advantages: firstly, having one of the first guide grooves 5214 and the second guide groove 5224 as a "V" shaped groove automatically corrects the relative position of the actual first rotation center N1 and the theoretical first rotation center N1, thus making the rotation of the first support 51 relative to the second support 52 smoother; secondly, it also prevents the first support 51 from jamming when rotating relative to the second support 52 if both the first guide groove 5214 and the second guide groove 5224 are "V" shaped grooves. In other embodiments, one of the first sliding groove 5152 and the second sliding groove 5162 of the first support 51 can be a "V" shaped groove. At least one of the first guide groove and the second guide groove 5224 of the second support 52 can be a "V" shaped groove.
[0146] Figure 30 yes Figure 10 The diagram shows a partial structural schematic of the drive motor 1a from another perspective. Figure 31a yes Figure 10 The diagram shows a cross-sectional structure of one embodiment of the drive motor 1a cut along DD. Figure 31b yes Figure 10 The diagram shows a cross-sectional view of one embodiment of the drive motor 1a cut along point CC. Wherein, Figure 30 The drive motor 1a shown conceals part of the housing 20.
[0147] like Figures 30 to 31bAs shown, the mover 50 can be housed inside the housing 20 and mounted on the base 10. The support portion 511, first sidewall 512, third sidewall 514, and second sidewall 513 of the first bracket 51 can all be located within the accommodating space 10c of the base 10. The first sidewall 512 of the first bracket 51 can be positioned opposite and spaced apart from the first side portion 11 of the base 10. The third sidewall 514 of the first bracket 51 can be positioned opposite and spaced apart from the second side portion 12 of the base 10. The second sidewall 513 of the first bracket 51 can be positioned opposite and spaced apart from the third side portion 13 of the base 10. At this time, the first drive coil 321 can be positioned opposite to the first group of magnetic elements 53. The first sub-coil 3221 of the second drive coil 322 can be positioned opposite to the first sub-magnetic element 541 of the second group of magnetic elements 54. The second sub-coil 3222 of the second drive coil 322 can be positioned opposite to the second sub-magnetic element 542 of the second group of magnetic elements 54. The first bracket 51 can be arranged in a first direction (i.e., the Z-axis direction in this embodiment) with the light inlet 20a. The first bracket 51 can be arranged in a second direction (i.e., the X-axis direction in this embodiment) with the light outlet 20b. In this case, the mounting space 51a of the first bracket 51 can connect the light inlet 20a and the light outlet 20b of the housing 20. The mounting slope 511a of the first bracket 51 can face the light inlet 20a and the light outlet 20b. The first axis R1 can be located on the side of the mounting slope 511a of the first bracket 51 near the light outlet 20b of the housing 20, i.e., the mounting side 51b of the first bracket 51. The mounting space 51a can be located on the mounting side 51b of the mounting slope 511a.
[0148] Figure 32 yes Figure 10 The diagram shows a cross-sectional structure of one embodiment of the drive motor 1a cut along G1-G1. Figure 33 yes Figure 10 The diagram shows a cross-sectional structure of one embodiment of the drive motor 1a cut along G2-G2. Figure 34 yes Figure 10 The diagram shows a cross-sectional structure of one embodiment of the drive motor 1a cut along HH.
[0149] like Figures 32 to 34As shown, the second bracket 52 can be located on the side of the base 10 near the light-emitting hole 20b of the housing 20. The second bracket 52 can be rotatably connected to the base 10 via multiple third ball bearings 561. The opening of the third guide groove 5215 of the second bracket 52 can be opposite to the opening of the first sliding groove 112 of the base 10. The third guide groove 5215 and the first sliding groove 112 together form a third ball bearing groove 503. The opening of the fourth guide groove 5216 of the second bracket 52 can be opposite to the opening of the second sliding groove 113 of the base 10. The fourth guide groove 5216 and the second sliding groove 113 together form a fourth ball bearing groove 504. The opening of the fifth guide groove 5225 of the second bracket 52 can be opposite to the opening of the third sliding groove 132 of the base 10. The fifth guide groove 5225 and the third sliding groove 132 together form a fifth ball bearing groove 505. The opening of the sixth guide groove 5226 of the second bracket 52 can be positioned opposite to the opening of the fourth sliding groove 133 of the base 10. The sixth guide groove 5226 and the fourth sliding groove 133 together form the sixth ball groove 506. The four third balls 561 can be located one-to-one in the third ball groove 503, the fourth ball groove 504, the fifth ball groove 505, and the sixth ball groove 506.
[0150] The first part 521 of the second bracket 52 is rotatably connected to the first side 11 of the base 10 via a portion of the third balls 561. The second part 522 of the second bracket 52 is rotatably connected to the third side 13 of the base 10 via another portion of the third balls 561. The centers of the multiple third balls 561 can be located on the same plane. The center of the circle containing the centers of the multiple third balls 561 is the third rotation center O3, which is also the center of the second set of support members 56. The second shaft R2 can pass perpendicularly through the plane containing the centers of the multiple third balls 561. The second shaft R2 can also pass through the third rotation center O3. At this time, the second bracket 52 can rotate relative to the base 10 around the second shaft R2. The third rotation center O3 can be located on the side of the mounting slope 511a of the first bracket 51 near the light outlet 20b, that is, the mounting side 51b of the first bracket 51. The second shaft R2 can pass through the mounting slope 511a and is parallel to the second direction (that is, the X-axis direction in this embodiment).
[0151] For example, two of the third guide groove 5215, the fourth guide groove 5216, the fifth guide groove 5225, and the sixth guide groove 5226 can be "V"-shaped grooves. This ensures that, on the one hand, two of the third guide groove 5215, the fourth guide groove 5216, the fifth guide groove 5225, and the sixth guide groove 5226 being "V"-shaped grooves can automatically correct the relative position between the actual third rotation center O3 and the theoretical third rotation center O3, thereby making the rotation of the second support 52 relative to the base 10 smoother; on the other hand, it also avoids the second support 52 from jamming when rotating relative to the base 10 if all three of the third guide groove 5215, the fourth guide groove 5216, the fifth guide groove 5225, and the sixth guide groove 5226 are "V"-shaped grooves. In other embodiments, two of the first sliding groove 112, the second sliding groove 113, the third sliding groove 132, and the fourth sliding groove 133 of the first support 51 can also be "V"-shaped grooves. At least two of the third guide groove 5215, the fourth guide groove 5216, the fifth guide groove 5225, and the sixth guide groove 5226 of the second bracket 52 are “V” shaped grooves.
[0152] In some embodiments, the middle portion 5212 of the first portion 521 can be located within the first clearance groove 114 of the first side portion 11. The middle portion 5222 of the second portion 522 can be located within the second clearance groove 134 of the third side portion 13. In this way, the first side portion 11 of the base 10 can partially surround the first portion 521 of the second bracket 52. The third side portion 13 of the base 10 can partially surround the second portion 522 of the second bracket 52. The second bracket 52 can utilize the length dimension of the base 10, and the arrangement of the second bracket 52 and the base 10 is more compact, which is beneficial for miniaturizing the drive motor 1a.
[0153] like Figure 31a , Figure 32 and Figure 33 As shown, the magnetic attracting element 40 can generate a magnetic attraction force along the X-axis with the first set of magnetic elements 53, thereby providing pre-pressure to the mover 50, so that multiple first balls 551 and second balls 552 can maintain contact with the first bracket 51 and the second bracket 52, and at the same time, multiple third balls 561 can maintain contact with the second bracket 52 and the base 10.
[0154] Figure 35a yes Figure 3 The diagram shows a cross-sectional structure of one embodiment of the image stabilization component 1 cut along B1-B1. Figure 35b yes Figure 3 The diagram shows a cross-sectional structure of one embodiment of the image stabilization component 1 cut along line B2-B2.
[0155] like Figure 35a and Figure 35b As shown, the first optical element 1b can be mounted in the mounting space 51a of the first bracket 51. Exemplarily, the first optical element 1b can be fixedly connected to the first sidewall 512 and the second sidewall 513 of the first bracket 51 by means of adhesive bonding or other methods. The reflective surface 102 of the first optical element 1b can face the mounting slope 511a of the first bracket 51. It should be noted that when the first optical element 1b is mounted on the first bracket 51, and the reflective surface 102 of the first optical element 1b is directly opposite the mounting slope 511a, the reflective surface of the first optical element 1b and the mounting slope 511a can be in contact, or there may be a small gap. This small gap can be formed by an air gap or the thickness of a fastener (e.g., an adhesive layer). In this case, the small gap between the reflective surface 102 and the mounting slope 511a can be ignored, and it can be considered that the reflective surface 102 coincides with the mounting slope 511a. That is, the first axis R1 can be located on the side of the reflective surface 102 closer to the light-emitting aperture 20b.
[0156] Exemplarily, the light-gathering axis T1 of the first optical element 1b can pass through the light-gathering aperture 20a and the mounting slope 511a. The light-gathering axis T1 can be parallel to a first direction (i.e., the Z-axis direction in this embodiment). The light-emission axis T2 of the first optical element 1b can pass through the mounting slope 511a and the light-emission aperture 20b. The light-emission axis T2 can be parallel to a second direction (i.e., the X-axis direction in this embodiment). The first axis R1 can be perpendicular to the plane containing the light-gathering axis T1 and the light-emission axis T2. The second axis R2 can coincide with the light-emission axis T2.
[0157] For example, the distance between the first shaft R1 and the mounting inclined surface 511a can be greater than 0.01 mm. In some embodiments, the distance between the first shaft R1 and the mounting inclined surface 511a can be greater than or equal to 5 mm.
[0158] For example, the center of gravity of the mover 50 and the first optical element 1b as a whole can be located on the side of the mounting slope 511a of the mover 50 near the light outlet 20b, that is, the mounting side 51b of the first bracket 51. The distance between the third rotation center O3 and the center of gravity of the mover 50 and the first optical element 1b as a whole can be less than or equal to 0.3 mm. It should be noted that the center of gravity of the mover 50 and the first optical element 1b as a whole can also be approximated as the center of gravity of the first bracket 51, the second bracket 52, and the first optical element 1b as a whole.
[0159] For example, the first axis R1 may intersect with the second axis R2. In some embodiments, both the first axis R1 and the second axis R2 may coincide through the third rotation center O3. In other embodiments, the first axis R1 may not intersect with the second axis R2. This application does not limit this.
[0160] When a signal is applied to the first drive coil 321, the first set of magnetic elements 53 can cooperate with the first drive coil 321 to generate a driving force along the Z-axis, thereby driving the first bracket 51 to rotate relative to the second bracket 52 around the first axis R1, that is, the first bracket 51 rotates relative to the stator around the first axis R1. At this time, the first set of magnetic elements 53 and the first drive coil 321 can together constitute the first drive mechanism of the drive motor 1a. The second sensor 332 can cooperate with the first set of magnetic elements 53 to detect the magnetic field strength of the first set of magnetic elements 53 at different rotation angles of the first bracket 51 around the first axis R1, so as to detect the angle of rotation of the first bracket 51 around the first axis R1. In other words, the first optical element 1b can rotate relative to the stator around the first axis R1 under the action of the mover 50, thereby achieving image stabilization.
[0161] When a signal is applied to the second drive coil 322, the first sub-magnetic element 541 of the second set of magnetic elements 54 can cooperate with the first sub-coil 3221 of the second drive coil 322 to generate a first driving force along the Z-axis. The second sub-magnetic element 542 of the second set of magnetic elements 54 can cooperate with the second sub-coil 3222 of the second drive coil 322 to generate a second driving force along the Z-axis. The direction of the first driving force is opposite to the direction of the second driving force, thereby driving the first bracket 51 to rotate together with the second bracket 52 relative to the base 10 around the second axis R2. That is, the first bracket 51 can drive the second bracket 52 to rotate together with the stator around the second axis R2. At this time, the second set of magnetic elements 54 and the second drive coil 322 can together constitute the second drive mechanism of the drive motor 1a. The first sensor 331 can cooperate with the first sub-magnetic element 541, and the third sensor 333 can cooperate with the second magnetic element 542 to jointly detect the magnetic field strength when the first bracket 51 rotates around the second axis R2 at different angles, thereby detecting the angle of rotation of the first bracket 51 around the second axis R2. In other words, the first optical element 1b can rotate relative to the stator around the second axis R2 under the action of the mover 50, thereby achieving image stabilization.
[0162] It is understandable that, compared to some drive motors where the mover drives the first optical element to rotate relative to the stator around a first axis and / or around a second axis to achieve optical image stabilization, the first axis is parallel to the Y-axis. The first axis is located on the mounting slope of the mover, or on the side of the mounting slope facing away from the light-emitting aperture. The second axis is parallel to the Z-axis. This results in a larger focus shift when the drive motor drives the first optical element to rotate around the first axis and / or around the second axis for optical image stabilization. This leads to a significant decrease in the modulation transfer function of the entire camera module, lower stabilization accuracy, and affects image quality. In this embodiment, the first axis R1 of the drive motor 1a is located on the side of the mounting slope 511a closest to the light-emitting aperture 20b, i.e., the mounting side 51b of the mounting slope 511a. The first axis R1 is parallel to the Y-axis. In this way, when the mover 50 of the drive motor 1a drives the first optical element 1b to rotate around the first axis R1, the focus offset is small, which can effectively reduce the impact of focus offset on the modulation transfer function, thus improving the image stabilization accuracy of the entire camera module 100 and improving image quality. Simultaneously, the mover 50 drives the first optical element 1b to rotate relative to the stator around the second axis R2, which is parallel to the X-axis. Thus, when the mover 50 of the drive motor 1a drives the first optical element 1b to rotate around the second axis R2, the exit surface of the image stabilization component 1 can always remain perpendicular to the light output axis T2, thereby effectively reducing the tilt angle between the image stabilization component 1 and the focusing component 2, reducing the focus offset, improving the image stabilization accuracy of the entire camera module 100, resulting in higher optical quality and improved image quality.
[0163] In other words, in this embodiment, the drive motor 1a is configured with the first axis R1 parallel to the Y-axis direction and the second axis R2 parallel to the X-axis direction, and the first axis R1 is located on the mounting side 51b of the mounting slope 511a of the mover 50. This can effectively improve the overall image stabilization accuracy of the drive motor 1a, reduce the impact on the modulation transfer function, and help improve the imaging quality of the camera module 100.
[0164] Secondly, in this embodiment, when the mover 50 of the drive motor 1a drives the stator to rotate around the second axis R2, the third rotation center O3 is located on the mounting side 51b of the mounting slope 511a of the mover 50. This allows the third rotation center O3 to be closer to the center of gravity of the mover 50 and the first optical element 1b as a whole. This effectively enhances the anti-interference capability of the drive motor 1a during anti-shake rotation around the second axis R2, and also reduces the power consumption of the drive motor 1a, thus extending the battery life of the electronic device 1000 and improving the user experience. The distance between the third rotation center O3 and the center of gravity of the mover 50 and the first optical element 1b as a whole can be less than or equal to 0.03 mm.
[0165] Furthermore, compared to a first axis parallel to the Y-axis direction, or a drive motor located on the mounting slope of the mover, or on the side of the mounting slope facing away from the light-emitting hole, in this embodiment, the first axis R1 of the drive motor 1a is located on the mounting side 51b of the mounting slope 511a. This increases the distance between the first set of magnetic components 53 and the first axis R1, thus increasing the driving force arm when the first set of magnetic components 53 drives the first bracket 51 to rotate relative to the second bracket 52 around the first axis R1. Therefore, with the same total weight of the mover 50 and the first optical element 1b, the drive motor 1a in this embodiment can generate greater thrust for image stabilization, achieving large-angle image stabilization. Under the same image stabilization angle, the mover 50 of the drive motor 1a in this embodiment can support the heavier first optical element 1b, which is beneficial for improving the optical quality of the entire camera module 100.
[0166] Furthermore, in this embodiment, multiple sets of magnetic components of the drive motor 1a (i.e., the first set of magnetic components 53 and the second set of magnetic components 54 in this embodiment) are all mounted on the first bracket 51, thereby enabling integrated transmission and improving the smoothness of the drive motor 1a's operation when it is performing anti-shake.
[0167] In some embodiments, the end of the third sidewall 514 of the first bracket 51 away from the light inlet hole 20a may be provided with an anti-collision protrusion 5142. Figure 22a and Figure 22b The anti-collision protrusion 5142 is also shown from another perspective. The second side 12 of the base 10 may be provided with a limiting hole 122. Figure 14 The limiting hole 122 is also shown from another perspective. At least a portion of the anti-collision protrusion 5142 of the first bracket 51 can be located within the limiting hole 122 of the base 10. In this way, when the first bracket 51 rotates relative to the base 10 about the first axis R1, the anti-collision protrusion 5142 can cooperate with the limiting hole 122, thereby effectively preventing the first bracket 51 from rotating too much relative to the base 10 about the first axis R1, which would cause the first optical element 1b to collide with the stator of the drive motor 1a and be damaged, thus helping to extend the service life of the camera module 100.
[0168] In other implementations, such as Figure 36a and Figure 36bAs shown, the extension 222 of the base plate 22 may be provided with a first protrusion 2221 and a second protrusion 2222. The first protrusion 2221 may be disposed toward the first sidewall 512 of the first bracket 51. The second protrusion 2222 may be disposed toward the second sidewall 513 of the first bracket 51. The first sidewall 512 of the first bracket 51 may be provided with a first limiting groove 512a. At least a portion of the first protrusion 2221 may be located within the first limiting groove 512a. The second sidewall 513 of the first bracket 51 may be provided with a second limiting groove 513a. At least a portion of the second protrusion 2222 may be located within the second limiting groove 513a. Thus, when the first bracket 51 is under the action of the second bracket 52, it rotates relative to the stator around the second axis R2 (please refer to...). Figure 35a When rotating, the first protrusion 2221 can engage with the first limiting groove 512a, and the second protrusion 2222 can engage with the second limiting groove 513a. This can effectively prevent the first bracket 51 from rotating too much relative to the stator around the second axis R2, which would cause the first optical element 1b to collide with the stator of the drive motor 1a and be damaged. This is beneficial to extending the service life of the camera module 100.
[0169] Figure 37 yes Figure 10 A schematic diagram of the cross-sectional structure of another embodiment of the drive motor 1a cut along DD. Figure 38 yes Figure 10 A schematic diagram of the cross-sectional structure of another embodiment of the drive motor 1a shown, cut along CC.
[0170] like Figure 37 and Figure 38 As shown, the structure of the drive motor 1a in this embodiment is similar to... Figure 10The structure of the drive motor 1a shown is largely the same, and the identical parts will not be described again. The difference lies in that the first set of magnetic components 53 of the drive motor 1a in this embodiment may further include a third magnet 533. The third magnet 533 may be located between the first magnet 531 and the second magnet 532. The first magnet 531, the third magnet 533, and the second magnet 532 may be arranged sequentially along the Z-axis. The third magnet 533 may be a unipolar magnet. The polarization direction of the third magnet 533 may be perpendicular to the polarization direction of the first magnet 531. For example, the portion of the first magnet 531 facing the first sidewall 512 may be the S pole, and the portion of the first magnet 531 facing away from the first sidewall 512 may be the N pole. The portion of the second magnet 532 facing the first sidewall 512 may be the S pole. The portion of the second magnet 532 facing away from the first sidewall 512 may be the N pole. The portion of the third magnet 533 facing the first magnet 531 may be the N pole. The portion of the third magnet 533 facing the second magnet 532 may be the S pole. At this time, the multiple magnets of the first set of magnetic components 53 (i.e., the first magnet 531, the second magnet 532, and the third magnet 533 in this embodiment) can form a Heilbeck array.
[0171] It is understood that in this embodiment, the first group of magnetic components 53 uses a Hellbeck array to arrange multiple magnets. Given that the overall size of the first group of magnetic components 53 is the same, the driving force generated by the first group of magnetic components 53 using a Hellbeck array and the first driving coil 321 is greater. Thus, under the condition that the total weight of the mover 50 and the first optical element 1b is the same, the mover 50 in this embodiment can drive the first optical element 1b around the first axis R1 (please refer to...). Figure 35a By rotating to a larger angle, large-angle image stabilization can be achieved. Under the same rotation angle, the mover 50 in this embodiment can support the heavier first optical element 1b, which is beneficial to improving the optical quality of the entire camera module 100.
[0172] In some embodiments, the first sub-magnetic element 541 and the second sub-magnetic element 542 of the second group of magnetic elements 54 can also be configured with multiple magnets using a Hellbeck array. The magnetic field direction of the first sub-magnetic element 541 can be opposite to that of the second sub-magnetic element 542. The structures of the first sub-magnetic element 541 and the second sub-magnetic element 542 are generally the same as those of the first group of magnetic elements 53, and the similarities will not be described again.
[0173] In some embodiments, the first set of magnetic elements 53 can also cooperate with the first drive coil 321 to generate a driving force parallel to the Y-axis, thereby driving the first bracket 51 to rotate relative to the base 10 around the second axis R2, causing the second bracket 52 to rotate together. In this case, the first set of magnetic elements 53 and the first drive coil 321 together constitute the second drive mechanism of the drive motor 1a. The first sub-magnetic element 541 of the second set of magnetic elements 54 can also cooperate with the first sub-coil 3221 of the second drive coil 322 to generate a first driving force along the Z-axis. The second sub-magnetic element 542 of the second set of magnetic elements 54 can also cooperate with the second sub-coil 3222 of the second drive coil 322 to generate a second driving force along the Z-axis. The direction of the first driving force is the same as the direction of the second driving force. Thus, the first sub-magnetic element 541 and the second sub-magnetic element 542 of the second set of magnetic elements 54 can respectively cooperate with the first sub-coil 3221 and the second sub-coil 3222 to jointly drive the first bracket 51 to rotate relative to the second bracket 52 around the first axis R1. At this time, the second set of magnetic components 54 and the second drive coil 322 can together form the first drive mechanism of the drive motor 1a.
[0174] In other embodiments, the first set of magnetic elements 53 and the first driving coil 321 can be disposed on the side of the first bracket 51 facing away from the light-entry hole 20a. The first set of magnetic elements 53 can generate a driving force along the X-axis with the first driving coil 321, thereby driving the first bracket 51 to rotate relative to the second bracket 52 around the first axis R1. Alternatively, without changing the positions of the first set of magnetic elements 53 and the first driving coil 321, a fourth set of magnetic elements and a third driving coil can be disposed on the side of the first bracket 51 facing away from the light-entry hole 20a. The fourth set of magnetic elements can cooperate with the third driving coil to generate a driving force along the X-axis. In this way, the first set of magnetic elements 53 and the fourth set of magnetic elements can cooperate with the first driving coil 321 and the third driving coil respectively to jointly drive the first bracket 51 to rotate relative to the second bracket 52 around the first axis R1, which is beneficial to increasing the driving force of the first bracket 51 rotating relative to the second bracket 52 and achieving large-angle image stabilization.
[0175] Figure 39 yes Figure 3 The diagram shows a cross-sectional structure of another embodiment of the image stabilization component 1 cut along B1-B1. Figure 40 yes Figure 39 The diagram shows a partial exploded view of the image stabilization component 1.
[0176] like Figure 39 and Figure 40 As shown, the structure of the image stabilization component 1 in this embodiment is similar to... Figure 3The structure of the image stabilization component 1 shown is largely the same, and the similar parts will not be described again. The main differences between the two will be introduced below. In this embodiment, the optical path folding element 104 of the image stabilization component 1 can be a reflecting plane mirror. The reflecting plane mirror can include a reflecting surface 1044 and a mounting surface 1045 arranged opposite to each other. The reflecting surface 1044 of the reflecting plane mirror can face the light inlet aperture 20a and the light outlet aperture 20b. The mounting surface 1045 of the optical path folding element 104 can face the mounting inclined surface 511a of the first bracket 51. The mounting surface 1045 of the optical path folding element 104 can be fixedly connected to the mounting inclined surface 511a of the first bracket 51. The reflecting surface 1044 of the optical path folding element 104 can be arranged at an angle to the surface of the first lens 105 facing the optical path folding element 104. For example, the reflecting surface 1044 can form a 45° angle with the surface of the first lens 105 facing the optical path folding element 104. At this time, the reflecting surface 1044 of the reflecting plane mirror can constitute the reflecting surface 102 of the first optical element 1b.
[0177] It is understandable that, compared to the image stabilization component where the optical path folding element is a reflecting prism, the first, second, and third surfaces of the reflecting prism are all solid surfaces, and the transmission of light between the first and third surfaces occurs entirely within the reflecting prism. The high refractive index inside the reflecting prism increases the optical path requirement of the entire camera module, resulting in a longer focusing path for the focusing component and a larger overall module size. In contrast, the optical path folding element 104 in this embodiment is a reflecting plane mirror, with its reflecting surface 1044 exposed to the air. Thus, the transmission of light between the light inlet 20a and the light outlet 20b occurs entirely within the air. The lower refractive index in air helps reduce the optical path requirement of the camera module 100, thereby shortening the focusing path of the focusing component 2 and reducing the overall size of the module in the X-axis direction, achieving a miniaturized design of the camera module 100.
[0178] In some implementations, such as Figures 40 to 42 As shown, Figure 41 yes Figure 40 A schematic diagram of the assembly structure of the first optical element 1b and the optical mount 70 of the image stabilization component 1 shown. Figure 42 yes Figure 40 A cross-sectional schematic diagram of the assembly structure of the optical mount 70 and the drive motor 1a of the image stabilization component 1 shown in some embodiments.
[0179] For example, the drive motor 1a may further include an optical mounting member 70. The optical mounting member 70 may be a steel sheet. The strength of the optical mounting member 70 may be greater than the strength of the portion where the mounting ramp 511a of the first bracket 51 is located. At least a portion of the optical mounting member 70 may be located between the optical path folding element 104 and the mounting ramp 511a. In other words, the optical path folding element 104 may be indirectly fixed to the mounting ramp 511a through the optical mounting member 70. Thus, compared to the direct contact between the optical path folding element 104 and the mounting ramp 511a of the first bracket 51, the strength of the portion where the mounting ramp 511a of the first bracket 51 is located is lower, making the portion where the mounting ramp 511a is located more susceptible to deformation due to impact or high temperature, thereby affecting the surface accuracy of the contact surface between the optical path folding element 104 and the mounting ramp 511a (i.e., the mounting surface 1045 of the optical path folding element 104 in this embodiment) and reducing optical quality. In this embodiment, the optical path folding element 104 is indirectly fixed to the mounting slope 511a via the optical mounting component 70. The optical path folding element 104 and the mounting slope 511a do not have direct contact, and the optical mounting component 70 has high strength, making it less prone to deformation due to impact or high temperature environments. This helps ensure the surface accuracy of the contact surface between the optical path folding element 104 and the optical mounting component 70 (i.e., the mounting surface 1045 of the optical path folding element 104 in this embodiment), thus guaranteeing the optical quality of the optical path folding element 104. In other embodiments, the optical mounting component 70 can also be an adhesive layer. The optical path folding element 104 can be bonded and fixed to the mounting slope 511a via the optical mounting component 70.
[0180] Exemplarily, the optical mounting component 70 may include a first mounting component 71 and a second mounting component 72. The first mounting component 71 may include a first limiting portion 711, a second limiting portion 712, a connecting portion 713, and a mounting portion 714. The first limiting portion 711 of the first mounting component 71 may be fixedly connected to the surface of the first bracket 51 facing away from the bottom 10b of the base 10. The second limiting portion 712 of the first mounting component 71 may be fixedly connected to the surface of the first sidewall 512 of the first bracket 51 facing away from the third sidewall 514. The mounting portion 714 of the first mounting component 71 may be fixedly connected to the mounting ramp 511a of the first bracket 51. The connecting portion 713 of the first mounting component 71 may connect between the first limiting portion 711, the second limiting portion 712, and the mounting portion 714. It should be understood that the structure of the second mounting component 72 is substantially the same as that of the first mounting component 71, and the identical parts will not be described again. The second limiting portion 712 of the second mounting component 72 may be fixedly connected to the surface of the second sidewall 513 facing away from the third sidewall 514. The mounting surface 1045 of the optical path folding element 104 can be fixedly connected to the surface of the mounting portion 714 of the first mounting member 71 facing away from the mounting slope 511a and the surface of the mounting portion 724 of the second mounting member 72 facing away from the mounting slope 511a. The first lens 105 can be fixedly connected to the first limiting portion 711 of the first mounting member 71 and the first limiting portion 721 of the second mounting member 72.
[0181] It is understandable that, compared to the optical mounting component 70 being a single unit, i.e., the first mounting component 71 and the second mounting component 72 being integrally formed, when the drive motor 1a is impacted, the stress on the optical mounting component 70 is relatively concentrated and will be transmitted inward to the first optical element 1b, causing the first optical element 1b to be stretched, affecting the surface accuracy of the first optical element 1b and reducing optical quality. In this embodiment, the optical mounting component 70 is configured as two independent and separately arranged first mounting components 71 and second mounting components 72. In this way, when the drive motor 1a is impacted, the first mounting components 71 and the second mounting components 72 can respectively withstand stress in different directions, thereby preventing the first optical element 1b from being stretched by stress in different directions, thus avoiding a reduction in its surface accuracy and affecting optical quality.
[0182] Secondly, the optical mounting component 70, by setting multiple limiting parts to cooperate with the first bracket 51, increases the fixing area of the optical mounting component 70, the first bracket 51, and the first optical element 1b, which is beneficial to improving the structural stability between the optical mounting component 70, the first optical element 1b, and the mover 50. On the other hand, the setting of multiple limiting parts also facilitates the positioning and assembly between the optical mounting component 70, the first optical element 1b, and the mover 50, which is beneficial to improving the assembly accuracy.
[0183] For example, the connecting portion 713 of the first mounting member 71 can be bent in the direction away from the mounting portion 714. At this time, the connecting portion 713 of the first mounting member 71 can be bent into a roughly "U" shape. The first bracket 51 can also be provided with a fourth clearance hole 517. A part of the connecting portion 713 of the first mounting member 71 can be located in the fourth clearance hole 517. In this way, by bending part of the first mounting member 71, the first mounting member 71 can also have the function of buffering and releasing stress, thereby effectively improving the overall structural stability of the anti-shake assembly 1. At the same time, the first bracket 51 is also provided with a fourth clearance hole 517 for avoiding the connecting portion 713 of the first mounting member 71, making the structure between the first mounting member 71 and the first bracket 51 more compact, which is conducive to realizing the miniaturization of the drive motor 1a.
[0184] For example, the connecting portion 713 of the second mounting member 72 can be bent in a direction away from the mounting portion 714. In this case, the connecting portion 713 of the second mounting member 72 can also be bent into a general "U" shape. The first bracket 51 may also be provided with a fifth clearance hole 518. A portion of the connecting portion 713 of the second mounting member 72 may be located within the fifth clearance hole 518.
[0185] In some embodiments, the connection portion 713 of the first mounting member 71 may be provided with one or more through holes, so that the first mounting member 71 can better buffer and release stress.
[0186] The above text, in conjunction with the accompanying drawings, describes one embodiment of the mover 50 of the drive motor 1a and the setting of the drive motor 1a including the mover 50 in various anti-shake components 1. The following text, in conjunction with the accompanying drawings, will describe several other ways of setting the mover 50 of the drive motor 1a.
[0187] The second implementation method, which shares the same technical content as the first implementation method, will not be described again: Figure 43 yes Figure 20 The diagram shown is a structural schematic of the mover 50 in the second embodiment. Figure 44 yes Figure 43 The exploded structural diagram of the mover 50 is shown. Figure 45 yes Figure 44 A schematic diagram of the structure of the first support 51 of the mover 50 from another perspective. Figure 46 yes Figure 44 A schematic diagram of the structure of the second support 52 of the mover 50 from another perspective.
[0188] like Figures 43 to 46As shown, in this embodiment, the first bracket 51 may not have the first and second mounting slots. The second bracket 52 may also have a fourth mounting slot 5217 and a fifth mounting slot 5227. The fourth mounting slot 5217 may be located in the middle portion 5212 of the first portion 521 of the second bracket 52. The opening of the fourth mounting slot 5217 may be formed on the surface of the middle portion 5212 of the first portion 521 facing away from the second portion 522. The fifth mounting slot 5227 may be located in the middle portion 5222 of the second portion 522 of the second bracket 52. The opening of the fifth mounting slot 5227 may be formed on the surface of the middle portion 5222 of the second portion 522 facing away from the first portion 521. In some embodiments, the mover 50 may also include a magnetic conductor 58. The magnetic conductor 58 may be fixed to the third mounting slot 5141 of the first bracket 51.
[0189] Exemplarily, the mover 50 may further include a second reinforcing member 59. The second reinforcing member 59 may be a steel sheet. The second reinforcing member 59 may be magnetically conductive. The second reinforcing member 59 may be embedded inside the second bracket 52 by means of injection molding or the like. Part of the second reinforcing member 59 may be exposed through the fourth mounting groove 5217 and the fifth mounting groove 5227.
[0190] Figure 47 yes Figure 10 The diagram shows a cross-sectional view of the drive motor 1a cut along DD in the second embodiment. Figure 48 yes Figure 10 The diagram shows a cross-sectional view of the drive motor 1a cut along CC in the second embodiment.
[0191] like Figure 47 and Figure 48 As shown, the first sub-magnetic element 541 and the second sub-magnetic element 542 of the second group of magnetic elements 54 can both be fixed to the second bracket 52, and are located in the fourth mounting groove 5217 and the fifth mounting groove 5227 respectively. The first group of magnetic elements 53 can be fixed to the first bracket 51, and is located in the third mounting groove 5141. At this time, the first group of magnetic elements 53 can be arranged with the mounting slope 511a of the first bracket 51 in the second direction (i.e., the X-axis direction in this embodiment). The first sub-magnetic element 541, the mounting slope 511a of the first bracket 51, and the second sub-magnetic element 542 can be arranged sequentially in the third direction (i.e., the Y-axis direction in this embodiment).
[0192] When a signal is applied to the first drive coil 321, the first set of magnetic components 53 can cooperate with the first drive coil 321 to generate a driving force along the Z-axis, thereby driving the first bracket 51 to rotate relative to the second bracket 52 around the first axis R1, that is, the first bracket 51 rotates relative to the stator around the first axis R1. In other words, the first optical element 1b can rotate relative to the stator around the first axis R1 under the action of the mover 50, thereby achieving image stabilization.
[0193] When a signal is applied to the second drive coil 322, the first sub-magnetic element 541 of the second set of magnetic elements 54 can cooperate with the first sub-coil 3221 of the second drive coil 322 to generate a first driving force along the Z-axis. The second sub-magnetic element 542 of the second set of magnetic elements 54 can cooperate with the second sub-coil 3222 of the second drive coil 322 to generate a second driving force along the Z-axis. The direction of the first driving force is opposite to the direction of the second driving force, thereby driving the second bracket 52 to rotate together with the first bracket 51 relative to the base 10 around the second axis R2. In other words, the second bracket 52 can drive the first bracket 51 to rotate together with the stator around the second axis R2. In other words, the first optical element 1b can rotate relative to the stator around the second axis R2 under the action of the mover 50, thereby achieving image stabilization.
[0194] It is understood that in this embodiment, the second set of magnetic components 54 of the mover 50 is fixed on the second bracket 52, so that the driving force generated by the second set of magnetic components 54 and the second drive coil 322 can be directly applied to the second bracket 52 without being affected by assembly errors between the first bracket 51 and the second bracket 52, which is beneficial to improving the anti-shake accuracy of the drive motor 1a.
[0195] The third implementation method, which shares the same technical content as the first implementation method, will not be described again: Figure 49 yes Figure 20 The diagram shows a cross-sectional view of the mover 50 cut along F1-F1 in the third embodiment. Figure 50 yes Figure 20 The diagram shows a cross-sectional view of the mover 50 cut along F2-F2 in the third embodiment.
[0196] like Figure 49 and Figure 50 As shown, in this embodiment, the number of first ball bearings 551 can be one. The first connecting portion 515 of the first bracket 51 can be rotatably connected to the first portion 521 of the second bracket 52 via one first ball bearing 551. Exemplarily, the first ball bearing 551 can be fixed in the first guide groove 5214 of the first portion 521. A portion of the first ball bearing 551 can be located in the first sliding groove 5152 of the first connecting portion 515.
[0197] Exemplarily, the mover 50 may further include a first magnetic element 5191 and a second magnetic element 5192. The first magnetic element 5191 and the second magnetic element 5192 may have the same shape and size. Both the first magnetic element 5191 and the second magnetic element 5192 can be fixed to the first connecting portion 515 of the first bracket 51 (for example, both the first magnetic element 5191 and the second magnetic element 5192 are embedded within the first connecting portion 515). The first magnetic element 5191 and the second magnetic element 5192 can be arranged along the Z-axis direction. The first magnetic element 5191 may be located near the light-emitting hole 20b of the second magnetic element 5192 (see reference). Figure 32 (As shown) on one side. The first ball 551 can be located between the first magnetic element 5191 and the second magnetic element 5192, that is, the first sliding groove 5152 can be located between the first magnetic element 5191 and the second magnetic element 5192. The first magnetic element 5191 and the second magnetic element 5192 can be symmetrically arranged about the first ball 551.
[0198] For example, the mover 50 may further include a second reinforcing member 59. The second reinforcing member 59 may be a steel sheet. The second reinforcing member 59 may be magnetically conductive, that is, the second reinforcing member 59 may constitute a magnetic attracting sheet. The second reinforcing member 59 may be embedded inside the second bracket 52 by means of injection molding or the like. Part of the second reinforcing member 59 may be located within the first portion 521 of the second bracket 52. In this case, the second reinforcing member 59 may be disposed opposite to the first magnetic member 5191 and opposite to the second magnetic member 5192. The first magnetic member 5191 may generate a first magnetic attraction force with the second reinforcing member 59. The second magnetic member 5192 may generate a second magnetic attraction force with the second reinforcing member 59. The component of the first magnetic attraction force in the Z-axis direction may be equal in magnitude and opposite in direction to the component of the second magnetic attraction force in the Z-axis direction. The component of the first magnetic attraction force in the X-axis direction can cooperate with the component of the second magnetic attraction force in the X-axis direction to provide pre-pressure for the first bracket 51, so that the first ball 551 can maintain contact with the first connecting part 515 of the first bracket 51 and the first part 521 of the second bracket 52.
[0199] For example, the number of second ball bearings 552 can also be one. The second connecting portion 516 of the first bracket 51 can be slidably connected to the second portion 522 of the second bracket 52 via one second ball bearing 552. The mover 50 may also include a third magnetic element 5193 and a fourth magnetic element 5194. The arrangement of the third magnetic element 5193 and the fourth magnetic element 5194 can refer to the arrangement of the first magnetic element 5191 and the second magnetic element 5192, and will not be described again here.
[0200] The fourth implementation method, which shares the same technical content as the first implementation method, will not be described again: Figure 51 yes Figure 20The diagram shown is a structural schematic of the mover 50 in the fourth embodiment. Figure 52 yes Figure 20 The diagram shows a cross-sectional view of the mover 50 cut along F2-F2 in the fourth embodiment.
[0201] like Figure 51 and Figure 52 As shown, in this embodiment, the number of first ball bearings 551 can be one. The first ball bearing 551 can be fixed to the first connecting portion 515 of the first bracket 51 by welding or other means. The mover 50 may also include a first upper elastic member 5195 and a first lower elastic member 5196. Both the first upper elastic member 5195 and the first lower elastic member 5196 can be springs. The first upper elastic member 5195 can be connected between the first end 5211 of the first portion 521 of the second bracket 52 and the first connecting portion 515 of the first bracket 51. The first lower elastic member 5196 can be connected between the second end 5213 of the first portion 521 of the second bracket 52 and the first connecting portion 515 of the first bracket 51. In this case, both the first connecting portion 515 and the first ball bearing 551 can be located between the first upper elastic member 5195 and the first lower elastic member 5196. The first ball bearing 551 can maintain contact with the wall of the first space 521a of the first portion 521 under the action of the first upper elastic member 5195 and the first lower elastic member 5196, that is, maintain contact with the first portion 521. For example, the stiffness of the first upper elastic member 5195 can be greater than the stiffness of the first lower elastic member 5196. In this way, the first upper elastic member 5195 can overcome the influence of the gravity of the first support 51 and maintain the centered position of the first ball bearing 551.
[0202] For example, the number of second ball bearings 552 can also be one. The second ball bearing 552 can be fixed to the second connecting portion 516 of the first bracket 51 by welding or other means. The mover 50 may also include a second upper elastic member 5197 and a second lower elastic member 5198. The arrangement of the second upper elastic member 5197 and the second lower elastic member 5198 can refer to the arrangement of the first upper elastic member 5195 and the first lower elastic member 5196, and will not be described again here. At this time, the second ball bearing 552 can maintain contact with the wall surface of the second space 522a of the second part 522 under the action of the second upper elastic member 5197 and the second lower elastic member 5198, that is, maintain contact with the second part 522 of the second bracket 52. The straight line connecting the center of the first ball bearing 551 and the center of the second ball bearing 552 can coincide with the first shaft R1. For example, the stiffness of the second upper elastic member 5197 can be greater than the stiffness of the second lower elastic member 5198. In this way, the second upper elastic element 5197 can overcome the influence of the gravity of the first bracket 51 and keep the second ball 552 centered.
[0203] The fifth implementation method, which shares the same technical content as the first implementation method, will not be described again: Figure 53 yes Figure 20 The diagram shows the structure of the mover 50 in the fifth embodiment. Figure 54 yes Figure 20 The diagram shows a cross-sectional view of the mover 50 cut along F1-F1 in the fifth embodiment. Figure 55 yes Figure 20 The diagram shows a cross-sectional view of the mover 50 cut along F2-F2 in the fifth embodiment.
[0204] like Figures 53 to 55 As shown, in this embodiment, the number of first ball bearings 551 can be one. The first ball bearing 551 can be fixed within the first guide groove 5214 of the first portion 521 of the second bracket 52. The first connecting portion 515 of the first bracket 51 can be rotatably connected to the first portion 521 of the second bracket 52 via the first ball bearing 551. At this time, the first ball bearing 551 can form point contact with the groove wall of the first sliding groove 5152 of the first connecting portion 515. The number of second ball bearings 552 can also be one. The second ball bearing 552 can be fixed within the second guide groove 5224 of the second portion 522 of the second bracket 52. The second connecting portion 516 of the first bracket 51 can be rotatably connected to the second portion 522 of the second bracket 52 via the second ball bearing 552. At this time, the second ball bearing 552 can form point contact with the groove wall of the second sliding groove 5162 of the second connecting portion 516. The straight line connecting the contact point of the first ball bearing 551 and the contact point between the second ball bearing 552 and the first bracket 51 can coincide with the first shaft R1. In this way, when the first bracket 51 rotates relative to the second bracket 52 around the first axis R1, the first ball 551 and the first bracket 51 are in point contact, forming rolling friction, and the second ball 552 and the first bracket 51 are also in point contact, forming rolling friction. This can effectively reduce the friction between the first ball 551 and the second ball 552 and the first bracket 51 respectively, which is beneficial to improving the smoothness of the rotation of the first bracket 51 relative to the second bracket 52.
[0205] In some implementations, such as Figure 56As shown, the first ball bearing 551 can also be fixed within the first sliding groove 5152 of the first connecting portion 515. The first sliding groove 5152 can be a "V" shaped groove. The first guide groove 5214 can also be a "V" shaped groove. In this case, there are two contact points between the first ball bearing 551 and the groove wall of the first guide groove 5214, which can form sliding friction. The center of the first ball bearing 551 is located on the first shaft R1 of the mover 50. In some other embodiments, the first ball bearing 551 can also be fixed within the first guide groove 5214 by means of bonding, welding, etc. In this case, the first ball bearing 551 can have two contact points with the groove wall of the first sliding groove 5152, which can form sliding friction.
[0206] It should be noted that, in the absence of conflict, the features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.
[0207] It should be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.
[0208] The above are merely some embodiments of this application, and the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A drive motor (1a), characterized in that, The drive motor (1a) includes a light inlet (20a) and a light outlet (20b): Base (10); The first bracket (51) includes a mounting slope (511a), the side of the mounting slope (511a) facing the light inlet (20a) and the light outlet (20b) is the mounting side (51b), and the mounting side (51b) is used to mount the first optical element (1b). The second bracket (52) is movably connected between the base (10) and the first bracket (51); A first driving mechanism is used to drive the first bracket (51) to rotate relative to the base (10) about a first axis, the first axis being parallel to the mounting inclined surface (511a); and, The second drive mechanism is used to drive the second bracket (52) and the first bracket (51) to rotate relative to the base (10) about the second axis; In this process, light enters the drive motor (1a) through the light inlet (20a) along a first direction, and after being reflected by the first optical element (1b), the light exits the drive motor (1a) through the light outlet (20b) along a second direction. The first direction intersects the second direction, the first axis is perpendicular to the plane containing the first direction and the second direction, and the second axis passes through the mounting inclined surface (511a) and is parallel to the second direction.
2. The drive motor (1a) according to claim 1, characterized in that, The first shaft is located on the mounting side (51b) of the mounting ramp (511a), or the first shaft is located on the mounting ramp (511a).
3. The drive motor (1a) according to claim 1 or 2, characterized in that, The first bracket (51) is provided with a first connecting part (515) and a second connecting part (516). The first connecting part (515) and the second connecting part (516) are spaced apart. The arrangement direction of the first connecting part (515) and the second connecting part (516) is parallel to the first axis. The first connecting part (515) and the second connecting part (516) are movably connected to the second bracket (52). The drive motor (1a) further includes a first set of support members (55), which includes a plurality of first support members. Some of the first support members are connected between the first connecting part (515) and the second bracket (52), and another part of the first support members are connected between the second connecting part (516) and the second bracket (52).
4. The drive motor (1a) according to claim 3, characterized in that, The first connecting part (515) and the second connecting part (516) are located on the side of the first bracket (51) near the light outlet (20b).
5. The drive motor (1a) according to claim 3 or 4, characterized in that, The first shaft passes through the first connecting part (515) and the second connecting part (516).
6. The drive motor (1a) according to any one of claims 3 to 5, characterized in that, The drive motor (1a) also includes a second set of support members (56), which includes a plurality of second support members, and the second bracket (52) is rotatably connected to the base (10) through the plurality of second support members.
7. The drive motor (1a) according to claim 6, characterized in that, The second bracket (52) includes a first part (521) and a second part (522) disposed opposite to each other. The first part (521) is located between the first connecting part (515) and the base (10), and the second part (522) is located between the second connecting part (516) and the base (10). The first part (521) is rotatably connected to the base (10) via a portion of the second support member, and the second part (522) is rotatably connected to the base (10) via another portion of the second support member.
8. The drive motor (1a) according to claim 7, characterized in that, The center point of the second set of support members (56) is located on the mounting side (51b).
9. The drive motor (1a) according to claim 7 or 8, characterized in that, The first part (521) partially surrounds the first connecting part (515), and the second part (522) partially surrounds the second connecting part (516).
10. The drive motor (1a) according to any one of claims 7 to 9, characterized in that, The first part (521) includes a first end (5211), a middle part (5212) and a second end (5213), wherein the middle part (5212) is fixedly connected between the first end (5211) and the second end (5213), and the second end (5213) is located on the side of the first end (5211) away from the light inlet hole (20a); The middle portion (5212) protrudes from the side opposite to the light-emitting hole (20b) relative to the first end portion (5211) and the second end portion (5213). The first end portion (5211), the middle portion (5212), and the second end portion (5213) together enclose the first space (521a). The first connecting portion (515) is installed in the first space (521a). Part of the first support member is connected between the first connecting portion (515) and the middle portion (5212).
11. The drive motor (1a) according to claim 10, characterized in that, The drive motor (1a) may further include a first upper elastic member (5195) and a first lower elastic member (5196), wherein the first upper elastic member (5195) is connected between the first end (5211) and the first connecting portion (515), and the first lower elastic member (5196) is connected between the second end (5213) and the first connecting portion (515). The elastic force generated by the first upper elastic member (5195) and the first lower elastic member (5196) keeps part of the first support member in contact with the wall of the first space (521a).
12. The drive motor (1a) according to claim 10, characterized in that, The drive motor (1a) further includes a first magnetic component (5191), a second magnetic component (5192), and a magnetic absorbing sheet (59). The first magnetic component (5191) and the second magnetic component (5192) are both fixed to the first connecting part (515). The first magnetic component (5191) is located on the side of the second magnetic component (5192) near the light inlet hole (20a). The first connecting part (515) is provided with a first sliding groove (5152). The first sliding groove (5152) is used to install part of the first support member. The first sliding groove (5152) is located between the first magnetic component (5191) and the second magnetic component (5192). The magnetic absorbing piece (59) is fixed to the first part (521). The magnetic absorbing piece (59) is disposed opposite to the first magnetic element (5191) and opposite to the second magnetic element (5192). The magnetic attraction force generated by the first magnetic element (5191) and the second magnetic element (5192) together with the magnetic absorbing piece (59) keeps part of the first support member in contact with the first part (521) and the first connecting part (515).
13. The drive motor (1a) according to any one of claims 10 to 12, characterized in that, Part of the second support member is connected between the first end (5211) of the first part (521) and the base (10), and part of the second support member is connected between the second end (5213) of the first part (521) and the base (10).
14. The drive motor (1a) according to any one of claims 7 to 13, characterized in that, The plurality of first support members include a plurality of first balls (551) and a plurality of second balls (552). The first connecting part (515) is rotatably connected to the first part (521) through the plurality of first balls (551), and the second connecting part (516) is rotatably connected to the second part (522) through the plurality of second balls (552). The center of the circle containing the centers of the first ball (551) is the first rotation center (O1), and the center of the circle containing the centers of the second ball (552) is the second rotation center (O2). The line connecting the first rotation center (O1) and the second rotation center (O2) coincides with the first axis.
15. The drive motor (1a) according to any one of claims 7 to 13, characterized in that, The plurality of first support members include a first ball (551) and a second ball (552), the first connecting part (515) is rotatably connected to the first part (521) through the first ball (551), and the second connecting part (516) is rotatably connected to the second part (522) through the second ball (552).
16. The drive motor (1a) according to claim 15, characterized in that, The line connecting the center of the first ball (551) and the center of the second ball (552) coincides with the first shaft; Alternatively, the contact point between the first ball (551) and the first connecting part (515) is the first contact point, and the contact point between the second ball (552) and the second connecting part (516) is the second contact point, and the line connecting the first contact point and the second contact point coincides with the first shaft. Alternatively, the contact point between the first ball (551) and the first part (521) is the first contact point, and the contact point between the second ball (552) and the second part (522) is the second contact point, and the line connecting the first contact point and the second contact point coincides with the first shaft.
17. The drive motor (1a) according to any one of claims 14 to 16, characterized in that, The first connecting part (515) is provided with a first sliding groove (5152), and the first part (521) is provided with a first guide groove (5214). The opening of the first sliding groove (5152) is opposite to the opening of the first guide groove (5214). The first sliding groove (5152) and the first guide groove (5214) constitute a first ball groove (501). At least a portion of the first ball (551) is located in the first ball groove (501). The second connecting part (516) is provided with a second sliding groove (5162), and the second part (522) is provided with a second guide groove (5224). The opening of the second sliding groove (5162) is opposite to the opening of the second guide groove (5224). The second sliding groove (5162) and the second guide groove (5224) constitute a second ball groove (502). At least a portion of the second ball (552) is located in the second ball groove (502). At least one of the first sliding groove (5152) and the second sliding groove (5162) is a V-groove, and one of the first guide groove (5214) and the second guide groove (5224) is a V-groove; Alternatively, at least one of the first guide groove (5214) and the second guide groove (5224) may be a V-groove, and one of the first sliding groove (5152) and the second sliding groove (5162) may be a V-groove.
18. The drive motor (1a) according to any one of claims 6 to 17, characterized in that, The plurality of second supports include at least three third balls (561), and the second bracket (52) is rotatably connected to the base (10) via the plurality of third balls (561), and the centers of the plurality of balls (561) are located in the same plane; The second axis is perpendicular to the plane in which the centers of the plurality of the third balls (561) are located.
19. The drive motor (1a) according to claim 18, characterized in that, The second bracket (52) is provided with a third guide groove (5215), a fourth guide groove (5216), and a fifth guide groove (5225). The base (10) is provided with a first sliding groove (112), a second sliding groove (113), and a third sliding groove (132). The openings of the third guide groove (5215), the fourth guide groove (5216), and the fifth guide groove (5225) correspond one-to-one with the openings of the first sliding groove (112), the second sliding groove (113), and the third sliding groove (132). 2) The openings are arranged opposite to each other. The third guide groove (5215), the fourth guide groove (5216) and the fifth guide groove (5225) respectively form the third ball groove (503), the fourth ball groove (504) and the fifth ball groove (505) with the first slide groove (112), the second slide groove (113) and the third slide groove (132). A plurality of third balls (561) are located one-to-one in the third ball groove (503), the fourth ball groove (504) and the fifth ball groove (505).
20. The drive motor (1a) according to claim 19, characterized in that, At least two of the third guide groove (5215), the fourth guide groove (5216) and the fifth guide groove (5225) are V-shaped grooves, and two of the first slide groove (112), the second slide groove (113) and the third slide groove (132) are V-shaped grooves; Alternatively, at least two of the first slide groove (112), the second slide groove (113), and the third slide groove (132) may be V-grooves, and two of the third guide groove (5215), the fourth guide groove (5216), and the fifth guide groove (5225) may be V-grooves.
21. The drive motor (1a) according to any one of claims 3 to 20, characterized in that, The drive motor (1a) further includes a first drive coil (321), a second drive coil (322), a first set of magnetic components (53), and a second set of magnetic components (54). The first drive coil (321) and the second drive coil (322) are both fixed to the base (10), and the first set of magnetic components (53) is fixed to the first bracket (51). The first set of magnetic components (53) is arranged opposite to the first drive coil (321). The second set of magnetic components (54) includes a first sub-magnetic component (541) and a second sub-magnetic component (542). The first sub-magnetic component (541) and the second sub-magnetic component (542) are both fixed to the first bracket (51). The arrangement direction of the first sub-magnetic component (541), the mounting inclined surface (511a) and the second sub-magnetic component (542) is parallel to the first axis. The second drive coil (322) includes a first sub-coil (3221) and a second sub-coil (3222). The first sub-coil (3221) is arranged opposite to the first sub-magnetic component (541), and the second sub-coil (3222) is arranged opposite to the second sub-magnetic component (542).
22. The drive motor (1a) according to any one of claims 3 to 20, characterized in that, The drive motor (1a) further includes a first drive coil (321), a second drive coil (322), a first set of magnetic components (53), and a second set of magnetic components (54). The first drive coil (321) and the second drive coil (322) are both fixed to the base (10). The first set of magnetic components (53) is fixed to the first bracket (51). The first set of magnetic components (53) is arranged opposite to the first drive coil (321). The second set of magnetic components (54) includes a first sub-magnetic component (541) and a second sub-magnetic component (542). The first sub-magnetic component (541) and the second sub-magnetic component (542) are both fixed to the second bracket (52). The arrangement direction of the first sub-magnetic component (541), the mounting inclined surface (511a) and the second sub-magnetic component (542) is parallel to the first axis. The second drive coil (322) includes a first sub-coil (3221) and a second sub-coil (3222). The first sub-coil (3221) is arranged opposite to the first sub-magnetic component (541), and the second sub-coil (3222) is arranged opposite to the second sub-magnetic component (542).
23. The drive motor (1a) according to claim 21 or 22, characterized in that, The first set of magnetic components (53) is located on the side of the first bracket (51) facing away from the light outlet (20b).
24. The drive motor (1a) according to any one of claims 21 to 23, characterized in that, The first driving coil (321) and the first set of magnetic components (53) constitute the first driving mechanism, and the second driving coil (322) and the second set of magnetic components (54) constitute the second driving mechanism.
25. The drive motor (1a) according to any one of claims 21 to 23, characterized in that, The first driving coil (321) and the first set of magnetic components (53) constitute the second driving mechanism, and the second driving coil (322) and the second set of magnetic components (54) constitute the first driving mechanism.
26. The drive motor (1a) according to any one of claims 21 to 25, characterized in that, The drive motor (1a) also includes a magnetic suction element (40), which is fixed to the base (10). The projection of the magnetic suction element (40) in a direction parallel to the second axis overlaps at least partially with the first set of magnetic elements (53). The first bracket (51) presses the second bracket (52) under the force between the magnetic suction element (40) and the first set of magnetic elements (53).
27. The drive motor (1a) according to any one of claims 3 to 26, characterized in that, The first bracket (51) further includes a support portion (511), a first sidewall (512), and a second sidewall (513). The first sidewall (512) and the second sidewall (513) are opposite to each other and spaced apart. The arrangement direction of the first sidewall (512) and the second sidewall (513) is parallel to the first axis. The support portion (511) is connected between the first sidewall (512) and the second sidewall (513). The support portion (511), the first sidewall (512), and the second sidewall (513) enclose an installation space (51a). The surface of the support portion (511) facing the installation space (51a) forms the installation slope (511a) of the first bracket (51). The installation space (51a) is used to install the first optical element (1b). The first connecting part (515) is located on the side of the first sidewall (512) facing away from the second sidewall (513), and the second connecting part (516) is located on the side of the second sidewall (513) facing away from the first sidewall (512).
28. The drive motor (1a) according to claim 27, characterized in that, The first connecting part is fixedly connected to the end of the first sidewall (512) facing the light-emitting hole (20b), and the second connecting part is fixedly connected to the end of the second sidewall (513) near the light-emitting hole (20b).
29. The drive motor (1a) according to claim 27 or 28, characterized in that, The drive motor (1a) also includes a base plate (22), which includes a main body part (221) and an extension part (222). The main body part (221) is fixedly connected to the surface of the base (10) facing away from the light inlet hole (20a). The extension part (222) is disposed opposite to the first side wall (512), and the arrangement direction of the extension part (222) and the first side wall (512) is parallel to the second axis. The extension portion (222) is provided with a first protrusion (2221) facing the first sidewall (512), the first sidewall (512) is provided with a first limiting groove (512a), and at least a portion of the first protrusion (2221) is located in the first limiting groove (512a).
30. The drive motor (1a) according to any one of claims 1 to 29, characterized in that, The first bracket (51) has an anti-collision protrusion (5142) on the side opposite to the light output hole (20b), and the base (10) has a limiting hole (122). At least a portion of the anti-collision protrusion (5142) is located in the limiting hole (122).
31. The drive motor (1a) according to any one of claims 1 to 30, characterized in that, The distance between the first shaft and the mounting inclined surface (511a) is greater than 0.01 mm; and / or, the distance between the first shaft and the mounting inclined surface (511a) is greater than or equal to 5 mm.
32. A stabilization component (1), characterized in that, The device includes a first optical element (1b) and a drive motor (1a) according to any one of claims 1 to 31. The first optical element (1b) includes an optical path folding element (104), which includes a first surface (1041), a second surface (1042), and a third surface (1043). The first surface (1041) is perpendicular to the third surface (1043), and the second surface (1042) is disposed toward the first surface (1041) and the third surface (1043) and connects the first surface (1041) and the second surface (1042). The first surface (1041) and the third surface (1043) are both transmissive surfaces, and the second surface (1042) is a reflective surface. The first surface (1041) is disposed opposite to the light inlet (20a), and the third surface (1043) is disposed opposite to the light outlet (20b). The first optical element (1b) has an input optical axis (T1) and an output optical axis (T2), wherein the input optical axis (T1) is parallel to the first direction and the output optical axis (T2) is parallel to the second direction.
33. A stabilization component (1), characterized in that, The device includes a first optical element (1b) and a drive motor (1a) according to any one of claims 1 to 31. The first optical element (1b) includes an optical path folding element (104), which includes a reflective surface (1044) and a mounting surface (1045). The reflective surface (1044) is disposed opposite to the mounting surface (1045). The mounting surface (1045) faces the mounting inclined surface (511a) of the first bracket (51) and is fixedly connected to the mounting inclined surface (511a). The reflective surface (1044) is disposed away from the mounting inclined surface (511a). The first optical element (1b) has an input optical axis (T1) and an output optical axis (T2), wherein the input optical axis (T1) is parallel to the first direction and the output optical axis (T2) is parallel to the second direction.
34. The image stabilization component (1) according to claim 32 or 33, characterized in that, The first optical element (1b) further includes a first lens (105) located on the light-incident side of the optical path folding element (104), and the first lens (105) has positive optical power.
35. The image stabilization component (1) according to any one of claims 32 to 34, characterized in that, The first optical element (1b) further includes a second lens (106), which is located on the light-emitting side of the optical path folding element (104) and has negative optical power.
36. The image stabilization component (1) according to any one of claims 32 to 35, characterized in that, The projection point of the first axis on the plane containing the first direction and the second direction is the first point, and the distance between the first point and the light output axis (T2) is less than or equal to 3 mm.
37. The image stabilization component (1) according to any one of claims 32 to 36, characterized in that, The distance between the second axis and the light output axis (T2) is less than or equal to 3 mm.
38. The image stabilization component (1) according to any one of claims 32 to 37, characterized in that, The distance between the center point of the second set of support members (56) of the drive motor (1a) and the center of gravity of the first bracket (51), the second bracket (52) and the first optical element (1b) as a whole is less than or equal to 0.3 mm.
39. A camera module (100), characterized in that, It includes a focusing assembly (2), an image sensor (3), and a stabilization assembly (1) according to any one of claims 32 to 38, wherein the focusing assembly (2) is located on the light-emitting side of the stabilization assembly (1), and the image sensor (3) is located on the light-emitting side of the focusing assembly (2).
40. An electronic device (1000), characterized in that, The device includes a housing (200) and a camera module (100) as described in claim 39, wherein the camera module (100) is disposed in the housing (200).
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