Voice coil motor, optical anti-vibration assembly, camera module and electronic equipment

Abstract

The embodiment of the invention provides a voice coil motor, an optical anti-vibration assembly, a camera module and electronic equipment. The voice coil motor comprises a fixed part, a first movable part, a second movable part, a first actuating part and a second actuating part, wherein the first actuating part and the second actuating part are respectively used for driving the first movable part and the second movable part to rotate around two mutually vertical directions relative to the fixed part. Wherein the first movable part and the second movable part limit the degree of freedom of the first movable part through the matching of the cambered surface and the supporting groove, and / or the second movable part and the fixed part limit the degree of freedom of the second movable part through the matching of the two fulcrum elements and the two grooves. According to the scheme, the degree of freedom of the voice coil motor in the non-required movement direction can be reduced, so that the anti-shake effect of the voice coil motor is improved, and the imaging quality is improved.

Description

[0001] This application is a divisional application. The application number of the original application is 202211541415.0, and the original application date is December 2, 2022. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The embodiments of the present application relate to the technical field of electronic equipment, and more specifically, to a voice coil motor, an optical image stabilization component, a camera module and an electronic device. Background Art

[0003] With the continuous development of electronic equipment technology, the shooting function has become an important feature of electronic equipment (such as mobile phones, tablets, etc.) and a major indicator for evaluating the performance of electronic equipment. High-power optical zoom has always been the development trend of electronic equipment photography, but due to the trend of electronic equipment becoming thinner and lighter, the traditional camera module structure cannot meet the requirements of high-power optical zoom, so the periscope camera module came into being.

[0004] Existing periscope camera modules usually have an optical image stabilization (OIS) function to improve the quality of photographing. When performing optical image stabilization, a voice coil motor is usually used to drive the optical folding element to rotate to perform shake compensation.

[0005] However, in the existing periscope camera module, due to the limitations of the structural design of the voice coil motor, when the voice coil motor drives the optical folding element for shake compensation, it will be disturbed by the degrees of freedom of non-required movement directions, resulting in poor anti-shake effect of the voice coil motor, affecting the anti-shake quality and causing unsatisfactory photo effects. Summary of the invention

[0006] The present application provides an embodiment that provides a voice coil motor, an optical image stabilization component, a camera module, and an electronic device, which can improve the anti-shake effect of the voice coil motor and enhance the imaging quality.

[0007] In a first aspect, a voice coil motor is provided, comprising: a fixed portion; a first movable portion, used for fixedly connecting with an optical element, wherein the optical element is used for adjusting light incident along a first direction to be transmitted along a second direction, the second direction being perpendicular to the first direction; a first actuating portion, used for driving the first movable portion to rotate relative to the fixed portion around a third direction, the third direction being perpendicular to the first direction and perpendicular to the second direction; a second movable portion, connected to the first movable portion through a first elastic member, the second movable portion being used for supporting the first movable portion; a second actuating portion, used for driving the second movable portion to rotate relative to the fixed portion around the first direction;

[0008] Among them, the second movable part is provided with a bearing platform, the bearing platform includes a supporting groove, the first movable part is provided with a first fulcrum element, the first fulcrum element includes a first arc surface, and the first movable part is supported on the inner wall of the supporting groove through the first arc surface; the first elastic part includes a first connecting part, a second connecting part and a deformation part located between the first connecting part and the second connecting part, the first connecting part is fixedly connected to the first fulcrum element, and the second connecting part is fixedly connected to the bearing platform; when the first actuator drives the first movable part, the first arc surface rotates around a third direction in the supporting groove to limit the deformation direction of the deformation part.

[0009] In the embodiment of the present application, the first movable part is supported by the first arc surface in the support groove of the second movable part, and when the first actuator drives the first movable part, the first fulcrum element rotates in the support groove. In this way, when the first elastic member is elastically deformed, its deformation direction is relatively fixed, rather than deforming in any direction without restraint, which can reduce or avoid the movement or rotation of the voice coil motor in the non-required movement direction, thereby improving the anti-shake effect of the motor and improving the imaging quality.

[0010] In a possible implementation manner, the rotation center and the center of mass of the first movable portion and the optical element in a connected state coincide with each other.

[0011] In this way, the influence of the interference torque can be reduced, thereby improving the anti-interference ability of the motor.

[0012] In a possible implementation, the supporting groove is a V-shaped groove or an arc-shaped groove.

[0013] The V-shaped groove or the arc-shaped groove can increase the contact area between the first fulcrum element and the inner wall of the groove, thereby reducing reliability risks.

[0014] In one possible implementation, there is a first preset distance in the first direction between a surface on the first fulcrum element that is fixedly connected to the first connecting portion and a surface on the supporting platform that is fixedly connected to the second connecting portion, and the first preset distance is used for the first elastic member to apply a first pre-pressure to the first fulcrum element.

[0015] The first pre-pressure applied by the first elastic member to the first fulcrum element can make the first fulcrum element always bear against the inner wall of the support groove, which can limit the movement of the optical element along the first direction. In addition, the application of the first pre-pressure can increase the friction between the first curved surface and the inner wall of the support groove, which can limit the movement of the optical element along the second direction. Moreover, due to the existence of the first pre-pressure, the position difference of the first movable part when the camera module is in different postures can be reduced, thereby reducing the sensitivity difference under different postures and improving the anti-shake effect.

[0016] In one possible implementation, the first connecting part is provided with a first through hole, the surface of the first fulcrum element fixedly connected to the first connecting part is provided with a first positioning column, and the first elastic member is sleeved on the first positioning column through the first through hole; the second connecting part is provided with a second through hole, the surface of the supporting platform fixedly connected to the second connecting part is provided with a second positioning column, and the first elastic member is sleeved on the second positioning column through the second through hole.

[0017] Through the cooperation between the through hole and the positioning column, the relative position relationship between the first movable part and the second movable part can be positioned.

[0018] In a possible implementation, the table surface of the supporting platform includes a first section surface, a second section surface, a third section surface, a fourth section surface and a fifth section surface which are sequentially connected in the second direction; the first section surface and the fifth section surface are located in a first plane perpendicular to the first direction, and the first section surface and the fifth section surface are used to be fixedly connected to the first connecting part; the second section surface and the fourth section surface are located in a second plane perpendicular to the first direction, and the second plane is lower than the first plane in the first direction, wherein the distance between the second section surface and the first plane and the distance between the fourth section surface and the first plane are used to provide deformation space for the deformation part; the third section surface is recessed on the side of the second plane away from the first plane to form a support groove.

[0019] In this way, the first segment surface and the fifth segment surface can be prepared in the same process, and the second segment surface and the fourth segment surface can be prepared in the same process, which can simplify the manufacturing process of the second movable part.

[0020] In one possible implementation, the voice coil motor includes two first fulcrum elements; the first movable part includes a first side wall and a second side wall arranged opposite to each other in a third direction, the second movable part includes a first supporting part and a second supporting part arranged opposite to each other in the third direction, the first supporting part is located on a side of the first side wall away from the second side wall, and the second supporting part is located on a side of the second side wall away from the first side wall; one of the two first fulcrum elements is provided on a side of the first side wall facing the first supporting part, a bearing platform is provided on a side of the first supporting part facing the first side wall, and the first fulcrum element on the first side wall bears against the bearing platform on the first supporting part; the other of the two first fulcrum elements is provided on a side of the second side wall facing the second supporting part, a bearing platform is provided on a side of the second supporting part facing the second side wall, and the first fulcrum element on the second side wall bears against the bearing platform on the second supporting part.

[0021] In this way, in the second direction, the first movable part is supported on the second movable part through the two first fulcrum elements, which can ensure stability when the first actuating part drives the first movable part.

[0022] In a possible implementation, the first fulcrum element is a D-shaped shaft.

[0023] In a possible implementation manner, the first fulcrum element and the first movable part are integrally formed.

[0024] In a possible implementation, one of the second movable part and the fixed part is a first component, and the other of the second movable part and the fixed part is a second component; the first component is provided with a second fulcrum element and a third fulcrum element arranged along the first direction, the second fulcrum element and the third fulcrum element are fixedly connected to the second component, the second fulcrum element includes a second arc surface, and the third fulcrum element includes a third arc surface; the second component is provided with a second groove and a third groove arranged along the first direction, the second groove is used to accommodate at least part of the second fulcrum element, and the inner wall of the second groove is in contact with the second arc surface, the third groove is used to accommodate at least part of the third fulcrum element, and the inner wall of the third groove is in contact with the third arc surface; when the second actuating part drives the second movable part to rotate around the first direction, the second arc surface bears against the inner wall of the second groove, and the third arc surface bears against the inner wall of the third groove to limit the rotation of the second movable part around the second direction.

[0025] The second movable part has two fulcrums in the first direction, and the second groove and the third groove limit the second fulcrum element and the third fulcrum element in the third direction, which can improve the stability of the motor's rotation around the first direction and reduce or avoid the rotation of the optical element around the second direction, thereby reducing the freedom of the voice coil motor in non-required movement directions.

[0026] In a possible implementation manner, a line between a rotation center of the second arc surface and a rotation center of the third arc surface is parallel to the first direction.

[0027] In a possible implementation manner, the second fulcrum element and the third fulcrum element are balls; or, the second fulcrum element and the third fulcrum element are protrusions extending from the first component toward the second component.

[0028] In a possible implementation manner, the second groove is a tapered groove or a V-shaped groove; and / or the third groove is a tapered groove or a V-shaped groove.

[0029] When the second groove and / or the third groove is a conical groove, the relative position relationship between the second movable part and the fixed part can be limited, and the movement of the optical element along the first direction and the movement along the third direction can be reduced or avoided, thereby reducing the freedom of the optical element in non-required movement directions.

[0030] When the second groove and / or the third groove is a V-shaped groove, two sides of the V-shaped groove can contact the fulcrum element, and can inhibit the second movable part from rotating in the second direction during the rotation of the second movable part in the first direction. In addition, the V-shaped groove can absorb installation errors and reduce assembly difficulty.

[0031] In a possible implementation manner, when the second groove and / or the third groove is a V-shaped groove, an extension direction of the V-shaped groove is parallel to the first direction.

[0032] In a possible implementation manner, when the second groove and / or the third groove is a tapered groove, the tapered groove is used to limit the movement of the second movable component along the first direction.

[0033] In a possible implementation, the voice coil motor also includes a second elastic member, the second elastic member includes a third connecting part, a fourth connecting part and a cantilever located between the third connecting part and the fourth connecting part, the third connecting part is fixedly connected to the fixed part, and the fourth connecting part is fixedly connected to the second movable part.

[0034] The second movable part is connected to the fixed part by the second elastic member, so that the second movable part can be allowed to rotate relative to the fixed part.

[0035] In one possible implementation, there is a second preset distance in the second direction between the surface of the fixed part fixedly connected to the third connecting part and the surface of the second movable part fixedly connected to the fourth connecting part, and the second preset distance is used for the second elastic member to apply a second pre-pressure to the second fulcrum element and the third fulcrum element.

[0036] By setting the second preset distance, the second elastic member can apply pre-pressure to the second fulcrum element and the third fulcrum element, thereby maintaining the stability of the active connection between the second movable part and the fixed part.

[0037] In a possible implementation, the voice coil motor includes two second elastic elements; the second movable part includes a first supporting part and a second supporting part arranged opposite to each other in a third direction and a third supporting part used to connect the first supporting part and the second supporting part, and the third supporting part is perpendicular to the second direction; the fixed part includes a fourth side wall and a fifth side wall arranged opposite to each other in the third direction and a third side wall used to connect the fourth side wall and the fifth side wall, the third side wall is perpendicular to the second direction, the fourth side wall is located on a side of the second supporting part away from the first supporting part, and the fifth side wall is located on a side of the first supporting part away from the second supporting part; the end surface of the fourth side wall away from the third side wall in the second direction is connected to the end surface of the second supporting part away from the third supporting part in the second direction through one of the two second elastic elements, and the end surface of the fifth side wall away from the third side wall in the second direction is connected to the end surface of the first supporting part away from the third supporting part in the second direction through the other of the two second elastic elements.

[0038] In this way, in the third direction, the second movable part is connected to the fixed part through the two second elastic elements, which can ensure the stability when the second actuating part drives the second movable part.

[0039] In one possible implementation, the second component is provided with a first groove located between the second groove and the third groove, and the first groove is used to accommodate the magnetic element; the first component is provided with a magnetic conductive part located between the second fulcrum element and the third fulcrum element, and the magnetic force between the magnetic conductive part and the magnetic element is used to apply a third pre-pressure to the second fulcrum element and the third fulcrum element.

[0040] When the magnetic attraction method is combined with the second elastic member to provide pre-pressure for the second fulcrum element and the third fulcrum element, the pre-pressure state between the fixed part and the second movable part is adjustable.

[0041] In a second aspect, a voice coil motor is provided, comprising: a fixed portion; a movable portion, which is fixedly connected to an optical element, wherein the optical element is used to adjust light incident along a first direction to be transmitted along a second direction, the second direction being perpendicular to the first direction; an actuating portion, which is used to drive the movable portion to rotate relative to the fixed portion around the first direction;

[0042] Among them, one of the movable part and the fixed part is the first component, and the other of the movable part and the fixed part is the second component; the first component is provided with a second fulcrum element and a third fulcrum element arranged along the first direction, the second fulcrum element and the third fulcrum element are fixedly connected to the second component, the second fulcrum element includes a second arc surface, and the third fulcrum element includes a third arc surface; the second component is provided with a second groove and a third groove arranged along the first direction, the second groove is used to accommodate at least part of the second fulcrum element, and the inner wall of the second groove is in contact with the second arc surface, the third groove is used to accommodate at least part of the third fulcrum element, and the inner wall of the third groove is in contact with the third arc surface; when the actuating part drives the movable part to rotate around the first direction, the second arc surface bears against the inner wall of the second groove, and the third arc surface bears against the inner wall of the third groove, so as to limit the rotation of the movable part around the second direction.

[0043] In the embodiment of the present application, the second movable part has two fulcrums in the first direction, and the second groove and the third groove limit the second fulcrum element and the third fulcrum element in the third direction, which can improve the stability of the motor's rotation around the first direction, and can reduce or avoid the rotation of the optical element around the second direction, thereby reducing the degree of freedom of the voice coil motor in non-required movement directions, improving the anti-shake effect of the motor, and improving imaging quality.

[0044] In a possible implementation manner, a line between a rotation center of the second arc surface and a rotation center of the third arc surface is parallel to the first direction.

[0045] In a possible implementation manner, the second fulcrum element and the third fulcrum element are balls; or, the second fulcrum element and the third fulcrum element are protrusions extending from the first component toward the second component.

[0046] In a possible implementation manner, the second groove is a tapered groove or a V-shaped groove; and / or the third groove is a tapered groove or a V-shaped groove.

[0047] In a possible implementation manner, when the second groove and / or the third groove is a V-shaped groove, an extension direction of the V-shaped groove is parallel to the first direction.

[0048] In a possible implementation manner, when the second groove and / or the third groove is a tapered groove, the tapered groove is used to limit the movement of the movable component along the first direction.

[0049] In a possible implementation, the voice coil motor further includes an elastic member, which includes a third connecting portion, a fourth connecting portion and a cantilever located between the third connecting portion and the fourth connecting portion, the third connecting portion is fixedly connected to the fixed portion, and the fourth connecting portion is fixedly connected to the movable portion.

[0050] In one possible implementation, there is a second preset distance in the second direction between the surface of the fixed part fixedly connected to the third connecting part and the surface of the movable part fixedly connected to the fourth connecting part, and the second preset distance is used for the elastic member to apply a second pre-pressure to the second fulcrum element and the third fulcrum element.

[0051] In a possible implementation, the voice coil motor includes two elastic elements; the movable part includes a first supporting part and a second supporting part arranged opposite to each other in a third direction and a third supporting part used to connect the first supporting part and the second supporting part, the third supporting part is perpendicular to the second direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction; the fixed part includes a fourth side wall and a fifth side wall arranged opposite to each other in the third direction and a third side wall used to connect the fourth side wall and the fifth side wall, the third side wall is perpendicular to the second direction, the fourth side wall is located on a side of the second supporting part away from the first supporting part, and the fifth side wall is located on a side of the first supporting part away from the second supporting part; the end surface of the fourth side wall away from the third side wall in the second direction is connected to the end surface of the second supporting part away from the third supporting part in the second direction through one of the two elastic elements, and the end surface of the fifth side wall away from the third side wall in the second direction is connected to the end surface of the first supporting part away from the third supporting part in the second direction through the other of the two elastic elements.

[0052] In one possible implementation, the second component is provided with a first groove located between the second groove and the third groove, and the first groove is used to accommodate the magnetic element; the first component is provided with a magnetic conductive part located between the second fulcrum element and the third fulcrum element, and the magnetic force between the magnetic conductive part and the magnetic element is used to apply a third pre-pressure to the second fulcrum element and the third fulcrum element.

[0053] In a third aspect, an optical image stabilization assembly is provided, comprising an optical element and a voice coil motor in any possible implementation of the first aspect or the second aspect, wherein the optical element is fixedly connected to the voice coil motor, wherein the optical element is used to adjust light incident along a first direction to be transmitted along a second direction, and the voice coil motor is used to drive the optical element to rotate.

[0054] In a fourth aspect, a camera module is provided, comprising a lens group, an image sensor and the optical image stabilization component of the third aspect, wherein the lens group is used to process the light incident from the optical element and project it onto the image sensor.

[0055] In a fifth aspect, an electronic device is provided, comprising a gyroscope, a processing unit and the camera module of the fourth aspect, wherein the gyroscope is used to collect jitter information of the electronic device and send the jitter information to the processing unit, and the processing unit is used to control the voice coil motor to drive the optical element to perform jitter compensation according to the jitter information.

[0056] The beneficial effects of the devices involved in the second to fifth aspects mentioned above can be referred to the first aspect, and for the sake of brevity, they will not be repeated. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic structural diagram of an electronic device provided in an embodiment of the present application.

[0058] Figure 2 It is a schematic structural diagram of a camera module provided in an embodiment of the present application.

[0059] Figure 3 It is a schematic diagram of the optical image stabilization of the periscope camera module.

[0060] Figure 4 It is a schematic diagram of the assembly of an optical image stabilization component provided in an embodiment of the present application.

[0061] Figure 5 It is a schematic diagram of an exploded view of an optical image stabilization component provided in an embodiment of the present application.

[0062] Figure 6 It is a schematic diagram of an exploded view of an optical image stabilization component provided in an embodiment of the present application.

[0063] Figure 7 It is a schematic structural diagram of the first movable part provided in an embodiment of the present application.

[0064] Figure 8 It is a schematic structural diagram of the second movable part provided in an embodiment of the present application.

[0065] Fig. 9 It is a schematic structural diagram of the first elastic member provided in an embodiment of the present application.

[0066] Fig.10 It is a schematic diagram of the assembly of the first elastic member and the first movable part provided in an embodiment of the present application.

[0067] Fig.11 It is a schematic cross-sectional view of the first elastic member, the first movable part and the second movable part in the assembled state provided in the embodiment of the present application.

[0068] Fig.12 It is a cross-sectional schematic diagram of the first elastic member, the first movable part and the second movable part in the assembled state provided by the embodiment of the present application.

[0069] Fig.13 It is a schematic structural diagram of the fixing part provided in an embodiment of the present application.

[0070] Fig.14 It is a schematic structural diagram of the second movable part provided in an embodiment of the present application.

[0071] Fig.15 It is a cross-sectional schematic diagram of the second movable part and the fixed part in an assembled state provided by an embodiment of the present application.

[0072] Fig.16 It is a cross-sectional schematic diagram of the second movable part and the fixed part in the assembled state provided by the embodiment of the present application.

[0073] Fig.17 It is a schematic structural diagram of the second elastic member provided in an embodiment of the present application.

[0074] Fig.18 It is a partially enlarged schematic diagram of the second movable part and the fixed part in the assembled state provided by the embodiment of the present application.

[0075] Fig.19 It is a schematic diagram of the assembly of an optical image stabilization component provided in an embodiment of the present application.

[0076] Fig. 20 It is a control principle diagram of the electronic device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0077] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0078] It should be noted that, in the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in this article is merely a way to describe the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0079] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two, "at least one" and "one or more" refer to one, two or more. The singular expressions "one", "a kind", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear indication to the contrary in the context.

[0080] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0081] In the description of the embodiments of the present application, the terms "upper", "lower", "left", "right", "inside", "outside", "vertical", "horizontal", etc. indicate orientations or positional relationships that are defined relative to the orientations or positions of the components schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for description and clarification relative to the drawings, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. It may change accordingly according to the change in the orientation of the components placed in the drawings, and therefore cannot be understood as a limitation on the present application. In addition, the "vertical" involved in the present application is not vertical in the strict sense, but is within the allowable error range. "Parallel" is not parallel in the strict sense, but is within the allowable error range.

[0082] In the embodiments of the present application, the same reference numerals are used to represent the same components or parts. For the same parts in the embodiments of the present application, only one of the parts or parts may be marked with a reference numeral in the figure. It should be understood that the reference numerals are also applicable to other identical parts or parts. In addition, the various parts in the drawings are not drawn to scale, and the sizes and dimensions of the parts shown in the drawings are only exemplary and should not be understood as limiting the present application.

[0083] For ease of understanding, the technical terms involved in this application are explained and illustrated below.

[0084] The optical axis is an imaginary line in an optical system, which can be understood as the direction in which the optical system transmits light. For a symmetrical transmission system, the optical axis generally coincides with the rotation centerline of the optical system. If the light coincides with the optical axis, the light will be transmitted along the optical axis in the optical system.

[0085] Optical image stabilization (OIS) refers to the use of optical components in imaging devices such as mobile phones or cameras to avoid or reduce the instrument jitter that occurs during the capture of optical signals in order to improve image quality. A common approach is to use a gyroscope to detect jitter, and then use the OIS motor to translate or rotate the optical components in the opposite direction to compensate for image blur caused by imaging device jitter during exposure.

[0086] Tilt refers to the relative inclination angle between the center of the lens carrier and the reference vertical line.

[0087] A voice coil motor (VCM) is a device that converts electrical energy into mechanical energy. It uses the magnetic field of a permanent magnet and the magnetic field generated by a powered coil conductor to generate motion on the magnetic poles, thereby achieving linear and limited swing angle motion. Its working principle is that when a powered conductor passes through a magnetic field, a force perpendicular to the magnetic field lines is generated. The magnitude of this force depends on the length of the conductor passing through the field, the magnetic field, and the strength of the current.

[0088] Focal length refers to the vertical distance from the optical center of a lens or lens group to the focus (or focal plane) when an infinitely distant scene forms a clear image on the focal plane through the lens or lens group. For a fixed-focus lens, the position of its optical center is fixed, so the focal length is fixed; for a zoom lens, the change of the optical center of the lens brings about the change of the lens focal length, so the focal length can be adjusted.

[0089] According to the zoom range, lenses can be divided into ultra-wide-angle lenses (focal length less than 21mm), wide-angle lenses (focal length 21mm-35mm), standard lenses (focal length 35mm-70mm), medium-telephoto lenses (focal length 70mm-135mm), telephoto lenses (focal length 135-500mm+), etc.

[0090] The focal length of a zoom lens has two readings, the smaller number is called the wide-angle end (which can get the maximum viewing angle), and the larger number is called the telephoto end (which can get the longest focal length). When shooting, you can use any focal length within the range of these two focal length ends. The wider the wide-angle end of the lens focal length (that is, the smaller the number), the wider the scene can be photographed, and the longer the telephoto end (that is, the larger the number), the farther the scene can be photographed. Divide the number at the telephoto end by the number at the wide-angle end, and the value obtained is the zoom multiple.

[0091] Optical zoom refers to zooming achieved by relying on the structure of an optical lens. It is achieved by changing the positions of the lens, the object, and the focus. Specifically, by changing the relative positions of the lenses in the lens, the positions of the above three elements can be changed to change the focal length of the lens, thereby magnifying or reducing the scene to be photographed. This image magnification is based on the principles of physics. During the magnification process, the photosensitive element directly senses light from the object and forms an image without any other electronic magnification processing. In this process, the photosensitive element is full-frame imaging, and the image can maintain the original highest resolution.

[0092] Figure 1 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown.

[0093] The electronic device 100 involved in the embodiment of the present application is an electronic device with an imaging function (such as video or photo recording), such as a mobile phone, a personal digital assistant (PDA) computer, a tablet computer, a laptop computer, a camcorder, a video recorder, a camera, a smart watch, a smart wristband, a car computer, a television (or a smart screen), etc.

[0094] The embodiment of the present application does not impose any special restrictions on the specific form of the electronic device 100. For the convenience of description and understanding, the following description is made by taking the electronic device 100 as a mobile phone as an example. Figure 1 (a) and (b) schematically illustrate the front and back sides of the electronic device 100 , respectively.

[0095] like Figure 1 As shown, the electronic device 100 may include a housing 101 , a display panel (DP) 102 , and a camera compact module (CCM) 103 .

[0096] The housing 101 is formed with a storage space for accommodating components of the electronic device 100. The housing 101 can also protect the electronic device 100 and support the entire device. The display screen 102 and the camera module 103 are arranged in the storage space of the housing 101 and are connected to the housing 101. In some embodiments, the housing 101 may include a back cover arranged opposite to the display screen 102 and a middle frame arranged inside the electronic device 100, and the display screen 102 and the camera module 103 may be fixed on the middle frame. The material of the housing 101 may be metal, plastic, ceramic or glass.

[0097] The display screen 102 is used to display images, for example, to display images captured by the camera module 103. The display screen 102 may be a liquid crystal display (LCD) screen, an organic light emitting diode (OLED) display screen, etc., wherein the OLED display screen may be a flexible display screen or a rigid display screen. The display screen 102 may be a regular screen, or may be a special-shaped screen, a folding screen, etc. The display screen 102 may be arranged on the front and / or back of the electronic device 100. Here, the front of the electronic device 100 may be understood as the side facing the user when the user uses the electronic device 100, and the back of the electronic device 100 may be understood as the side facing away from the user when the user uses the electronic device 100.

[0098] The camera module 103 is used to capture still images or videos. The camera module 103 can be arranged on the front and / or back of the electronic device 100. When the camera module 103 is arranged on the front of the electronic device 100, it can be used to shoot the scene on the front side of the electronic device 100, such as for selfies, and in some embodiments it can be called a front camera. When the camera module 103 is arranged on the back of the electronic device 100, it can be used to shoot the scene on the back side of the electronic device 100, and in some embodiments it can be called a rear camera. When shooting, the user can select the corresponding camera module according to the shooting requirements.

[0099] Understandably, Figure 1 The installation position of the middle camera module 103 is only schematic.

[0100] In some embodiments, when the camera module 103 is used as a front camera, it can be installed at any position on the front of the electronic device 100 except the display screen 102, such as the left side of the receiver, the upper middle of the electronic device 100, the lower part (or chin) of the electronic device 100, or the four corners of the electronic device 100. The camera module 103 can also be set in the hollow area on the display screen 102. When the camera module 103 is used as a rear camera, it can be installed at any position on the back of the electronic device 100, such as the upper left corner, the upper right corner, or the upper middle position.

[0101] In some other embodiments, the camera module 103 may not be arranged on the main body of the electronic device 100, but may be arranged on an edge protruding relative to the main body of the electronic device 100, or may be arranged on a component that is movable or rotatable relative to the electronic device 100, wherein the component may be retracted or rotated from the main body of the electronic device 100 so that the camera module 103 may be hidden inside the electronic device 100 or at least partially popped out from the electronic device 100, etc. When the camera module 103 is rotatable relative to the electronic device 100, the camera module 103 is equivalent to a front camera and a rear camera, that is, by rotating the same camera module 103, the scene on the front side of the electronic device 100 and the scene on the back side of the electronic device 100 may be photographed.

[0102] In other embodiments, when the display screen 101 is foldable, the camera module 103 can be used as a front camera or a rear camera as the display screen 102 is folded.

[0103] The embodiment of the present application does not limit the number of camera modules 103, which can be one, two, four or even more. For example, one or more camera modules 103 can be set on the front of the electronic device 100, and / or one or more camera modules 103 can be set on the back of the electronic device 100. When multiple camera modules 103 are set, the multiple camera modules 103 can be completely the same or different, for example, the multiple camera modules 103 have different lens optical parameters, different lens setting positions, different lens shapes, etc. The embodiment of the present application does not limit the relative positions of the multiple camera modules when they are set.

[0104] Optionally, in some embodiments, the electronic device 100 may further include a protective lens 104 for protecting the camera module 103. The protective lens 104 is disposed on the housing 101 and covers the camera module 103.

[0105] In some embodiments, when the protective lens 104 is used to protect the front camera, the protective lens 104 may only cover the front camera module or cover the entire front of the electronic device 100. When the protective lens 104 covers the entire front of the electronic device 100, it can be used to protect the front camera module and the display screen 102 at the same time, and the protective lens 104 is a cover glass (CG).

[0106] In some embodiments, when the protective lens 104 is used to protect the rear camera, the protective lens 104 may cover the entire back side of the electronic device 100, or may be only disposed at a position corresponding to the rear camera module.

[0107] The material of the protective lens 104 can be glass, sapphire, ceramic, etc., which is not particularly limited in the present embodiment. In some embodiments, the protective lens 104 is transparent, and light outside the electronic device 100 can enter the camera module 103 through the protective lens 104.

[0108] It should be understood that Figure 1 The structure illustrated in the figure does not constitute a specific limitation on the electronic device 100. The electronic device 100 may include more or fewer components than those shown in the figure. For example, the electronic device 100 may also include one or more components such as a battery, a flash, a fingerprint recognition module, an earpiece, buttons, and a sensor. The electronic device 100 may also be provided with a component arrangement different from that shown in the figure.

[0109] With the continuous development of electronic equipment technology, the shooting function has become an important feature of electronic equipment (such as mobile phones, tablets, etc.) and a major indicator for evaluating the performance of electronic equipment. In order to meet the diverse needs of users, such as achieving a camera-like shooting experience or adapting to shooting in different scenes, the lens (i.e., camera module) on the electronic device can achieve zoom, so that both near and far images can be clearly imaged.

[0110] Generally speaking, zoom lenses can easily adjust short focal lengths, but for long focal lengths, they are limited by the thickness of electronic devices, and the zoom multiples that can be achieved are small (e.g., 3x telephoto), and the effects of object magnification and background blur are not obvious. For the demand for longer focal lengths, in order to maintain the lightness and thinness of electronic devices, a periscope structure with a prism is usually added. This periscope structure is similar to a periscope and can bend the light path to achieve telephoto.

[0111] In the embodiment of the present application, Figure 1The camera module 103 shown is a periscope camera module. Specifically, the lens group in the camera module 103 is arranged horizontally, and the light entering the camera module 103 needs to pass through components such as reflectors, lenses, and prisms before it can hit the image sensor, and the light path is folded. In this way, the focal length can be adjusted by floating the lens group inside the electronic device, thereby achieving optical zoom without protruding the lens group from the electronic device body. It should be understood that the "horizontal" direction involved here refers to the direction perpendicular to the thickness direction of the electronic device 100. In some embodiments, the periscope camera module may also be referred to as a folding camera module.

[0112] Figure 2 A schematic structural diagram of a camera module provided in an embodiment of the present application is shown. Figure 2 The camera module 200 may be Figure 1 An exemplary structure of the camera module 103 in the figure, wherein the camera module 200 is a periscope camera module.

[0113] like Figure 2 As shown, the camera module 200 includes an optical element 21, a lens group 22 and an image sensor 23 arranged in sequence along the transmission direction of the imaging beam 201. Here, the imaging beam 201 refers to a beam formed by light incident on the camera module 200.

[0114] For the convenience of description, the optical axis direction of the camera module 200 (specifically the lens group 22) is defined as the Z direction (for example Figure 2 The direction perpendicular to the optical axis and parallel to the direction in which the imaging light beam 201 is incident on the optical element 21 is the X direction (eg Figure 2 The vertical direction of the paper shown in FIG. 1 is also referred to as the X-axis direction), and the direction perpendicular to the optical axis direction and perpendicular to the first direction is the Y-direction (eg Figure 2 The direction perpendicular to the paper surface shown in the figure may also be referred to as the Y-axis direction). More specifically, the following definition is that the direction of the X-axis toward the object side is the positive direction of the X-axis, and the direction of the X-axis away from the object side is the negative direction of the X-axis; the direction of the Z-axis toward the image side is the positive direction of the Z-axis, and the direction of the Z-axis away from the image side is the negative direction of the Z-axis; the positive direction of the Y-axis is the direction of clockwise rotation of the positive direction of the Z-axis, and the negative direction of the Y-axis is the direction of counterclockwise rotation of the positive direction of the Z-axis. Similarly, the definitions of the X, Y, and Z directions are also applicable to the drawings to be described later. It should be noted that the above definitions of the X, Y, and Z directions are merely for the convenience of describing the positional relationship and connection relationship between the various components in the embodiments of the present application, and should not be construed as limitations on the embodiments of the present application.

[0115] In some embodiments, for the convenience of description, the X direction may also be referred to as the first direction, the Z direction may also be referred to as the second direction, and the Y direction may also be referred to as the third direction.

[0116] The optical element 21 is used to fold the optical path of the received imaging light beam 201 and transmit it to the lens group 22, so as to adjust the light incident along the first direction to be transmitted along the second direction. Optical path folding is also called optical path turning, which refers to changing the transmission path of the light. For example, the optical element 21 can be a reflective element such as a prism (such as a right-angle prism or a triangular prism) or a reflector. In some embodiments, the optical element 21 can also be called an optical folding element.

[0117] The lens group 22 is used to transmit the received imaging light beam 201 to the image sensor 23, so as to image the scene on the object side on the imaging surface on the image side. Here, the object side refers to the side where the object is located, and the image side is the side where the image of the object is located. The lens group 22 can also perform certain processing on the received imaging light beam 201, such as correcting aberrations, achromatic aberrations, etc. The lens group 22 may include at least one lens (or lens), and the at least one lens may be different or the same. In the embodiment of the present application, the number of lenses and the lens material included in the lens group 22 are not specifically limited. Those skilled in the art can set the number of lenses accordingly according to actual needs, or set a combination of solid lenses (with fixed lens parameters) and / or liquid lenses (with dynamically adjustable lens parameters), which will not be described further herein.

[0118] The lens group 22 may further include a lens barrel for accommodating the at least one lens. In order to achieve zooming, the lens barrel may be an integral body, and the at least one lens is accommodated in the integral lens barrel, but the relative positions between the lenses may be adjusted by other structures. Alternatively, the lens barrel may include a plurality of lens barrel parts, and the at least one lens is grouped in the plurality of lens barrel parts, and the relative positions between the plurality of lens barrel parts may be adjusted, thereby achieving the adjustment of the relative positions between the lenses.

[0119] The image sensor 23 is arranged at the rear side of the lens group 22, and is mainly used for imaging. Specifically, the image sensor 23 has an image acquisition area (also called a photosensitive area or a photosensitive surface), and the image sensor 23 acquires the received imaging light beam 201 through the image acquisition area. The image sensor 23 is a device with a photoelectric conversion function, which can convert the optical signal of the imaging light beam 201 collected on the image acquisition area into an electrical signal that is proportional to the optical signal. The image sensor can be a CCD image sensor composed of a charge coupled device (CCD) or a CMOS image sensor composed of a complementary metal oxide semiconductor (CMOS).

[0120] from Figure 2It can be seen that the optical element 21, the lens group 22 and the image sensor 23 are arranged in sequence along the optical axis. The imaging principle of the camera module 200 is as follows: the light entering the camera module from the object side is refracted by the optical element 21, and the refracted light beam is projected onto the image sensor 23 through the lens group 22 to realize imaging of the object.

[0121] In some embodiments, the camera module 200 may further include a filter (e.g., an infrared cut filter (IRCF) or a filter that filters out other light bands), which is disposed between the lens group 22 and the image sensor 23. For example, when the filter is an IRCF, unnecessary light projected onto the image sensor 23 may be eliminated, thereby preventing the image sensor 23 from having problems such as ghosting, stray light, and color cast when imaging.

[0122] In some embodiments, the optical element 21 may be made of a material with near-infrared absorption characteristics, such as blue glass or resin-type absorption material, or colorless glass covered with a coating absorption material, etc., to achieve the near-infrared cutoff capability of the camera module 200. Alternatively, the material of the optical element 21 may be white glass, and at least one surface thereof for transmitting the imaging light beam 201 may be covered with a near-infrared cutoff film, thereby achieving the near-infrared cutoff capability of the camera module 200.

[0123] The camera module 200 may also include a housing for accommodating the entire camera module, a connector, a circuit board, and peripheral electronic components, which will not be described in detail here.

[0124] In order to reduce image blur caused by shaking during shooting and improve image quality, periscope camera modules generally have an optical image stabilization function. For periscope camera modules, a voice coil motor is usually used to drive the optical element 21 to rotate for shake compensation.

[0125] Figure 3 A schematic diagram of optical image stabilization of a periscope camera module is shown.

[0126] like Figure 3 As shown, the optical element 21 is fixedly connected to the voice coil motor 24, and the voice coil motor 24 can drive the optical element 21 to rotate around the Y axis to perform anti-shake compensation for the jitter in the X direction, and the voice coil motor 24 can drive the optical element 21 to rotate around the X axis to perform anti-shake compensation for the jitter in the Y direction. In other words, the voice coil motor 24 can realize the rotation of the optical element 21 in two degrees of freedom, that is, the voice coil motor 24 can control the rotation of the optical element 21 around the X axis and the Y axis. In the embodiment of the present application, the movement of the optical element 21 driven by the voice coil motor 24 can also be called a dual-degree-of-freedom axis-shifting rotation movement, and accordingly, the voice coil motor 24 can also be called a two-axis rotary voice coil motor.

[0127] Generally, shaking will move the electronic device in six degrees of freedom, including three translational degrees of freedom and three rotational degrees of freedom. Specifically, the three translational degrees of freedom include movement along the X-axis, movement along the Y-axis, and movement along the Z-axis. The three rotational degrees of freedom include rotation around the X-axis, rotation around the Y-axis, and rotation around the Z-axis. The rotation of the optical element 21 around the X-axis and the rotation around the Y-axis can be understood as the degrees of freedom of the required movement direction.

[0128] In the existing periscope camera module, due to the limitation of the structure design of the voice coil motor, when the voice coil motor drives the optical element to rotate around the X-axis and Y-axis for jitter compensation, the optical element will still have degrees of freedom in non-required movement directions, such as at least one of movement along the X-axis direction, movement along the Y-axis direction, movement along the Z-axis direction, and rotation around the Z-axis. In this way, the jitter compensation process of the voice coil motor will be disturbed by the degrees of freedom in non-required movement directions, resulting in poor anti-shake effect of the voice coil motor, thereby affecting the anti-shake quality and resulting in unsatisfactory photo effects.

[0129] Therefore, the embodiments of the present application will provide a voice coil motor and an optical image stabilization assembly, which will improve the anti-interference ability of the voice coil motor by limiting the freedom of the optical element in non-required movement directions, thereby enhancing the optical image stabilization effect and improving the imaging quality.

[0130] Figures 4 to 6 A schematic structural diagram of an optical image stabilization component provided in an embodiment of the present application is shown, wherein Figure 4 This is a schematic diagram of the assembly of the optical image stabilization component. Figure 5 and Figure 6 This is a schematic diagram of the optical image stabilization component.

[0131] refer to Figure 4 and Figure 5 As shown, the optical image stabilization assembly 300 includes a housing 3, an optical element 4 and a voice coil motor 5. The optical element 4 is fixedly connected to the voice coil motor 5, and the voice coil motor 5 is used to drive the optical element 4 to rotate along the X-axis and along the Y-axis to perform image stabilization compensation for the jitter in the Y direction and the jitter in the X direction, respectively. The housing 3 is formed with a accommodating space for accommodating the optical element 4 and the voice coil motor 5. In order not to hinder the transmission of light, the areas on the housing 3 corresponding to the incident surface and the exit surface of the optical element 4 are hollowed out or opened, so that the optical element 4 can receive imaging optics and transmit the imaging light beam to the lens group after folding the optical path of the imaging light beam.

[0132] In the embodiment of the present application, the optical element 4 may be Figure 2 An exemplary structure of the optical element 21 in the embodiment of the present invention, the voice coil motor 5 may be Figure 2An exemplary structure of the voice coil motor 24 in FIG. The incident surface of the optical element involved here refers to the surface of the optical element receiving the imaging light beam, and the exit surface of the optical element refers to the surface of the imaging light beam passing through the optical element, or it can be understood as the surface of the optical element to guide the imaging light beam out.

[0133] In some embodiments, the optical element 4 may be a right-angle prism. Figure 6 As shown, the optical element 4 may include a first right-angled surface 41, a second right-angled surface 42 and a bevel 43, wherein in the direction of rotation around the Y axis, the first right-angled surface 41, the second right-angled surface 42 and the bevel 43 are sequentially connected. More specifically, the first right-angled surface 41 is parallel to the YZ plane, the second right-angled surface 42 is parallel to the XY plane, the first right-angled surface 41 is perpendicular to the second right-angled surface 42, and the bevel 43 connects the first right-angled surface 41 and the second right-angled surface 42. Here, the first right-angled surface 41 is the incident surface of the optical element 4, and the second right-angled surface 42 is the exit surface of the optical element 4. The optical element 4 is located on the optical path of the incident light and the bevel 43 can reflect the incident light at 90°. The optical path of the incident light after reflection is sequentially provided with the following Figure 2 The lens assembly 22 and the image sensor 23 are shown. The optical element 4 further includes a first connecting surface 44 and a second connecting surface 45 which are arranged opposite to each other in the Y-axis direction. The first connecting surface 44 and the second connecting surface 45 are both adjacent to the first right-angle surface 41 , the second right-angle surface 42 and the inclined surface 43 .

[0134] refer to Figure 6 As shown, the voice coil motor 5 may include a first movable part 51, a first actuating part 52, a second movable part 53, a second actuating part 54, a first elastic member 55, and a fixed part 57. The first movable part 51 is used to be fixedly connected to the optical element 4, and the optical element 4 is used to adjust the light incident along the X-axis direction to be transmitted along the Z-axis direction. The first actuating part 52 is used to drive the first movable part 51 to rotate around the Y-axis direction relative to the fixed part 57. The second movable part 53 is connected to the first movable part 51 through the first elastic member 55, and the second movable part 53 is used to support the first movable part 51. The second actuating part 54 is used to drive the second movable part 53 to rotate around the X-axis direction relative to the fixed part 57.

[0135] In some embodiments, the voice coil motor 5 further includes a second elastic member 56 , and the second elastic member 56 is used to connect the second movable portion 53 and the fixed portion 57 .

[0136] In some embodiments, the voice coil motor 5 further includes a circuit board 58 , and the circuit board 58 is used to provide a current signal for the voice coil motor 5 .

[0137] The various components and their connection relationships are described in detail below with reference to the accompanying drawings.

[0138] The first movable portion 51 is fixedly connected to the optical element 4 and is used to carry the optical element 4. As an example but not a limitation, the first movable portion 51 includes a connection surface that matches the inclination of the inclined surface 43 of the optical element 4, and the optical element 4 can be fixed to the first movable portion 51 by bonding the inclined surface 43 to the connection surface.

[0139] The second movable portion 53 is roughly U-shaped and is arranged on the periphery of the first movable portion 51 in the direction of rotation around the X-axis. The first movable portion 51 is connected to the second movable portion 53 through the first elastic member 55. In the embodiment of the present application, the first elastic member 55 is flexible and can be elastically deformed, so the first movable portion 51 is equivalent to being suspended in the accommodation space of the second movable portion 53. The second movable portion 53 is used to carry the first movable portion 51 and the optical element 4, and the second movable portion 53 is equivalent to a support member for the first movable portion 51 and the optical element 4.

[0140] The second movable portion 53 is movably connected to the fixed portion 57. For example, Figure 6 As shown, the second movable portion 53 includes a first support portion 531, a second support portion 532 and a third support portion 533. The first support portion 531 and the second support portion 532 are arranged opposite to each other in the Y-axis direction, and the two ends of the third support portion 533 in the Y-axis direction are respectively connected to the first support portion 531 and the second support portion 532. The first support portion 531 and the second support portion 532 are respectively arranged on both sides of the first movable portion 51 in the Y-axis direction, and the third support portion 533 is arranged on a side of the first movable portion 51 away from the imaging surface (or lens group, or image sensor) in the Z-axis direction. In the embodiment of the present application, the middle position of the third support portion 533 in the Y-axis direction can be movably connected to the fixed portion 57. Here, the fixed portion 57 is a relatively fixed component in the optical image stabilization assembly 300.

[0141] The first actuating portion 52 is connected to the first movable portion 51, and is used to drive the first movable portion 51 to rotate around the Y axis, thereby driving the optical element 4 to rotate around the Y axis. Exemplarily, the first actuating portion 52 may include a first magnet 521 and a first coil 522 that are relatively arranged along the X axis direction, wherein the first magnet 521 is arranged on the first movable portion 51, and the first coil 522 is arranged on the fixed portion 57. When the first coil 522 is energized, according to the left-hand rule of Ampere's law, the first magnet 521 will be subjected to a force along the Z axis direction. Since the first magnet 521 is fixedly connected to the first movable portion 51, the first magnet 521 will drive the first movable portion 51 to move along the Z axis, and the first movable portion 51 is connected to the second movable portion 53 through the first elastic member 55, and the movement of the first movable portion 51 causes the first elastic member 55 to bend and deform, so that the first movable portion 51 rotates around the Y axis.

[0142] It can be known that under the action of the magnetic field of the first coil 522, the first magnet 521 can be subjected to a force in the positive or negative direction along the Z axis. Therefore, by changing the current magnitude and direction of the first coil 522, the force magnitude and direction of the first magnet 521 covered by the magnetic field can be controlled, thereby controlling the movement trajectory and moving position of the first magnet 521, and then controlling the direction and angle of rotation of the optical element 4 (or the first movable part 51 fixedly connected to the first magnet 521) around the Y axis, thereby achieving the function of jitter compensation.

[0143] In some embodiments, the positions of the first magnet 521 and the first coil 522 can be exchanged. For example, the first magnet 521 is disposed on the fixed portion 57 , and the first coil 522 is disposed on the first movable portion 51 .

[0144] In the embodiment of the present application, the movement of the first actuating portion 52 driving the optical element 4 to rotate around the Y axis can also be called a nodding movement. The first movable portion 51 can also be called a Y-axis base of the optical element 4 or a first rotating bracket.

[0145] The second actuating portion 54 is connected to the second movable portion 53, and is used to drive the second movable portion 53 to rotate around the X-axis, thereby driving the optical element 4 to rotate around the X-axis. Exemplarily, the second actuating portion 54 may include a second magnet 541 and a second coil 542 that are relatively arranged along the Y-axis direction, wherein the second magnet 541 is arranged on the second movable portion 53, and the second coil 542 is arranged on the fixed portion 57. When the second coil 542 is energized, according to the left-hand rule of Ampere's law, the second magnet 541 will be subjected to a force along the Z-axis direction. Since the second magnet 541 is fixedly connected to the second movable portion 53, the second magnet 541 will drive the second movable portion 53 to move along the Z-axis, and the second movable portion 53 is movably connected to the fixed portion 57, so the second magnet 541 drives the second movable portion 53 to rotate around the X-axis.

[0146] It can be known that under the action of the magnetic field of the second coil 542, the second magnet 541 can be subjected to a force in the positive or negative direction along the Z axis. Therefore, by changing the current magnitude and direction of the second coil 542, the force magnitude and direction of the second magnet 541 covered by the magnetic field can be controlled, thereby controlling the movement trajectory and moving position of the second magnet 541, and then controlling the direction and angle of rotation of the optical element 4 (or the second movable part 53 fixedly connected to the second magnet 541) around the X axis, so as to achieve the function of jitter compensation.

[0147] In some embodiments, the positions of the second magnet 541 and the second coil 542 can be swapped. For example, the second magnet 541 is disposed on the fixed portion 57 , and the second coil 542 is disposed on the second movable portion 53 .

[0148] In some embodiments, the second actuating portion 54 may include two second magnets 541 and two second coils 542, wherein one group of the second magnets 541 and the second coils 542 are disposed on one side of the first support portion 531 of the second movable portion 53, and the other group of the second magnets 541 and the second coils 542 are disposed on one side of the second support portion 532 of the second movable portion 53. Exemplarily, one of the second magnets 541 is fixedly connected to the first support portion 531, and the other second magnet 541 is fixedly connected to the second support portion 532. The two second coils 542 are disposed on the fixed portion 57, wherein one of the second coils 542 is disposed opposite to the second magnet 541 disposed on the first support portion 531 in the Y-axis direction, and the other second coil 542 is disposed opposite to the second magnet 541 disposed on the second support portion 532 in the Y-axis direction.

[0149] In this case, the current directions in the two second coils 542 are opposite, so that under the action of the magnetic field, one second magnet 541 is subjected to a force in the positive direction of the Z axis, and the other second magnet 541 is subjected to a force in the negative direction of the Z axis. Driven by the two second magnets 541, the second movable part 53 rotates in the same direction around the X axis.

[0150] The two groups of second magnets 541 and second coils 542 can improve the actuation stability and actuation speed of the second actuating portion 54 , thereby improving the optical image stabilization effect and optical image stabilization efficiency.

[0151] In some embodiments, the second actuating portion 54 may also include only a second magnet 541 and a second coil 542 . The second magnet 541 and the second coil 542 may be disposed on one side of the first supporting portion 531 or on one side of the second supporting portion 532 .

[0152] In this case, a set of second magnets 541 and second coils 542 can reduce the weight of the entire voice coil motor 5 and the optical image stabilization assembly 300 while achieving the actuation function, which is beneficial to the lightweight of the electronic device. In addition, since only one second coil 542 is involved, the circuit layout can also be simplified.

[0153] In the embodiment of the present application, the movement of the second actuating portion 54 driving the optical element 4 to rotate around the X-axis can also be called a shaking movement. The second movable portion 53 can also be called an X-axis base of the optical element 4 or a second rotating bracket.

[0154] In the embodiment of the present application, the second movable part 53 and the fixed part 57 can be movably connected by the cooperation of the protrusion and the groove or the cooperation of the ball and the groove, and provide a fulcrum for the second movable part to rotate around the X-axis. In order to prevent the second movable part 53 from being separated from the fixed part 57, it is necessary to provide a pre-pressure between the second movable part 53 and the fixed part 57.

[0155] In some embodiments, the pre-pressure can be provided by magnetic attraction. Figure 6 As shown, a first groove 5711 may be provided on the wall 571 of the fixed portion 57 facing the third support portion 533, and the first groove 5711 is used to accommodate a magnetic element, such as a third magnet 59. The third magnet 59 is fixedly arranged in the first groove 5711. A ferromagnetic material (such as metals such as iron, nickel, and cobalt) may be provided in the area of ​​the third support portion 533 opposite to the first groove 5711. For example, a portion of the third support portion 533 opposite to the first groove 5711 is made of a ferromagnetic material, or a component made of a ferromagnetic material, such as a magnetic conductive member, is fixed on the surface of the third support portion 533 facing the first groove 5711, so that a pre-pressure between the second movable portion 53 and the fixed portion 57 can be provided through the magnetic attraction between the third magnet 59 and the ferromagnetic material.

[0156] In some embodiments, the pre-stress can be provided by elastic deformation of the elastic member. Figure 6 As shown, the voice coil motor 5 may further include a second elastic member 56, the two ends of which in the Y-axis direction are respectively connected to the second movable portion 53 and the fixed portion 57. In the embodiment of the present application, the distance between the side surface of the second movable portion 53 away from the third support portion 533 in the Z-axis direction and the side surface of the fixed portion 57 away from the wall 571 in the Z-axis direction may be set to be greater than 0, or it may be understood that the second movable portion 53 protrudes from the fixed portion 57 in the Z-axis direction. In this way, there is a certain distance between the two ends of the second elastic member 56 for connecting the second movable portion 53 and the fixed portion 57 in the Z-axis direction, and the second elastic member 56 undergoes elastic deformation. In this way, the elastic force generated by the elastic deformation can provide a pre-pressure between the second movable portion 53 and the fixed portion 57.

[0157] The manner of providing the pre-pressure between the second movable portion 53 and the fixed portion 57 will be described in more detail below in conjunction with the accompanying drawings, and is only briefly described here.

[0158] The circuit board 58 is fixedly connected to the fixing portion 57 and is used to transmit current signals, for example, to provide electrical signals to the first coil 522 and the second coil 542 in the voice coil motor 5. In some embodiments, the circuit board 58 can be a flexible printed circuit (FPC), which has the characteristics of high reliability, excellent flexibility, high wiring density, light weight, thin thickness, and good bendability.

[0159] In About Figure 6 It is mentioned in the introduction that the first movable part 51 is connected to the second movable part 53 through the first elastic member 55, which is described in more detail below with reference to the accompanying drawings.

[0160] Figure 7 Shows Figure 6 A schematic structural diagram of the first movable part 51 in FIG.

[0161] like Figure 7 As shown, the first movable portion 51 may include a first body 511 and a first side wall 512 and a second side wall 513 located on both sides of the first body 511 (such as both sides of the first body 511 along the Y-axis direction), and the first side wall 512 is arranged opposite to the second side wall 513. In some embodiments, the first side wall 512 and the second side wall 513 are parallel to each other.

[0162] The first body 511, the first side wall 512 and the second side wall 513 form a first accommodation space for accommodating Figure 6 The optical element 4 shown. In some embodiments, the shape of the first accommodation space is adapted to the shape of the optical element 4. As an example and not a limitation, the first body 511 may include an inclined surface with the same degree of inclination as the inclined surface 43 of the optical element 4, and the inclined surface 43 of the optical element 4 may be fixedly connected to the inclined surface of the first body 511. The surface of the first side wall 512 facing the second side wall 513 may be fixedly connected to the first connecting surface 44 of the optical element 4. The surface of the second side wall 513 facing the first side wall 512 may be fixedly connected to the second connecting surface 45 of the optical element 4.

[0163] refer to Figure 7 , the first movable part 51 is provided with a first fulcrum element 514, and the first fulcrum element 514 is used to connect with the second movable part 53 through the first elastic member 55. In some embodiments, the first fulcrum element 514 is provided on the surface of the first side wall 512 away from the second side wall 513. Exemplarily, the first fulcrum element 514 can be a protrusion protruding in the direction away from the second side wall 513. For the convenience of distinction and description, the protrusion can be referred to as a first protrusion. In the embodiment of the present application, the first fulcrum element 514 includes a first arc surface 5141 protruding in the direction close to the first actuating part 52 along the X-axis, and the first arc surface 5141 is used to contact with the second movable part 53, so as to realize the rotation of the first movable part 51 around the Y-axis as a fulcrum.

[0164] In some embodiments, the first fulcrum element 514 is integrally formed with the first movable portion 51 , or the first fulcrum element 514 is separately manufactured and then fixedly connected to the first movable portion 51 .

[0165] In some embodiments, the first fulcrum element 514 can be fixedly connected to the first elastic member 55 via a connecting surface 5142 on the first fulcrum element 514 that is opposite to the first arc surface 5141. For example, the connecting surface 5142 and a portion of the first elastic member 55 are fixedly connected by bonding, welding, etc., thereby realizing the connection between the first movable part 51 and the second movable part 53.

[0166] In some embodiments, a first positioning column 5143 protruding along the X-axis direction away from the first actuating portion 52 can be provided on the connecting surface 5142 . The first positioning column 5143 is used to cooperate with the hole provided on the first elastic member 55 to limit the position of the first movable portion 51 .

[0167] As an example but not limitation, the first fulcrum element 514 may include a second body 5144 and a first positioning column 5143 protruding from the surface of the second body 5144 in a direction away from the first actuating portion 52, wherein the surface of the second body 5144 close to the first actuating portion 52 is a first arc surface 5141 protruding in the direction of the first actuating portion 52, and the surface of the second body 5144 on which the first positioning column 5143 is arranged is a connecting surface 5142.

[0168] In some embodiments, the first fulcrum element 514 or the second body 5144 is a D-shaped shaft.

[0169] When the first fulcrum element 514 includes a first positioning column 5143, the connecting surface 5142 can be fixedly connected to a portion of the first elastic member 55 to achieve the connection between the first movable part 51 and the second movable part 53; alternatively, the connecting surface 5142 may not be fixedly connected to the first elastic member 55, but the connection between the first movable part 51 and the second movable part 53 can be achieved through the cooperation between the first positioning column 5143 and the hole provided on the first elastic member 55 and the supporting effect of the second movable part 53 on the first fulcrum element 514.

[0170] In some embodiments, similar to the first sidewall 512, a first fulcrum element 514 may also be disposed on the surface of the second sidewall 513 away from the first sidewall 512. The first fulcrum element 514 disposed on the first sidewall 512 is symmetrical to the first fulcrum element 514 disposed on the second sidewall 513.

[0171] In other embodiments, a second protrusion protruding in a direction away from the first side wall 512 may also be provided on the surface of the second side wall 513 away from the first side wall 512 , and the second protrusion is fixedly connected to a portion of the first elastic member 55 , and the second protrusion does not contact the second movable portion 53 .

[0172] It should be noted that the direction away from the first actuating portion 52 along the X-axis involved in the embodiment of the present application can also be understood as the direction toward the incident light (or the object side), that is, the positive direction of the X-axis. Similarly, the direction close to the first actuating portion 52 along the X-axis can also be understood as the direction away from the incident light (or the object side), that is, the negative direction of the X-axis.

[0173] Figure 8 Shows Figure 6 A schematic structural diagram and a partially enlarged schematic diagram of the second movable part 53 in FIG.

[0174] like Figure 8 As shown, the second movable part 53 includes a first supporting part 531, a second supporting part 532 and a third supporting part 533. The first supporting part 531 and the second supporting part 532 are arranged opposite to each other in the Y-axis direction, and the third supporting part 533 is connected to the first supporting part 531 and the second supporting part 532 at both ends in the Y-axis direction.

[0175] In the embodiment of the present application, in the assembled state, the second movable portion 53 is arranged around the outside of the first movable portion 51, the first support portion 531 is located on the side of the first side wall 512 away from the second side wall 513, and the second support portion 532 is located on the side of the second side wall 513 away from the first side wall 512. The first support portion 531 of the second movable portion 53 is arranged opposite to the first side wall 512 of the first movable portion 52, the second support portion 532 of the second movable portion 53 is arranged opposite to the second side wall 513 of the first movable portion 52, and the third support portion 533 of the second movable portion 53 is located outside the first body 511 of the first movable portion 52.

[0176] refer to Figure 8 , the second movable part 53 is provided with a bearing platform 534. In some embodiments, a bearing platform 534 is provided on one side of the first supporting part 531 facing the second supporting part 532, and the table surface of the bearing platform 534 faces the positive direction of the X-axis. The bearing platform 534 is used to carry the first elastic member 55 and the first fulcrum element 514 of the first movable part 51, so as to realize the connection between the first movable part 51 and the second movable part 53.

[0177] In some embodiments, the table surface of the support platform 534 includes a first section surface 5341, a second section surface 5342, a third section surface 5343, a fourth section surface 5344, and a fifth section surface 5345 which are sequentially connected in the Z-axis direction. That is, the two ends of the third section surface 5343 in the Z-axis direction are respectively connected to the second section surface 5342 and the fourth section surface 5344, the end of the second section surface 5342 away from the third section surface 5343 in the Z-axis direction is connected to the first section surface 5341, and the section of the fourth section surface 5344 away from the third section surface 5343 in the Z-axis direction is connected to the fifth section surface 5345.

[0178] The first section surface 5341 and the fifth section surface 5345 are in the same plane, for example, both are located in the first plane, and the first plane is parallel to the YZ plane, that is, perpendicular to the X direction. The first section surface 5341 and the fifth section surface 5345 are used to be fixedly connected to the first connecting portion of the first elastic element 55. Exemplarily, the first section surface 5341 and the fifth section surface 5345 are fixedly connected to the two ends of the first elastic member 55 to fix the first elastic member 55 to the second movable portion 53.

[0179] In some embodiments, the first section surface 5341 is provided with a second positioning column 5346 protruding toward the positive direction of the X-axis, and the fifth section surface 5345 is provided with a third positioning column 5347 protruding toward the positive direction of the X-axis. The second positioning column 5346 and the third positioning column 5347 are used to cooperate with the holes provided on the first elastic member 55 to define the relative position relationship between the first elastic member 55 and the supporting platform 534.

[0180] A first step is formed between the first section surface 5341 and the second section surface 5342, and a second step is formed between the fifth section surface 5345 and the fourth section surface 5344. In other words, the first section surface 5341 and the second section surface 5342 form a step surface, and the fifth section surface 5345 and the fourth section surface 5344 form a step surface. The first step and the second step are used to leave a space for allowing the first elastic member 55 to deform.

[0181] In some embodiments, the second section surface 5342 and the fourth section surface 5344 are in the same plane, for example, both are located in the second plane, the second plane is parallel to the YZ plane, and the second plane is lower than the first plane in the X direction. The distance between the second section surface 5342 and the first plane and the distance between the fourth section surface 5344 and the first plane are used to provide a deformation space for the deformation part of the first elastic member 55. Accordingly, the height of the first step is equal to the height of the second step. In this way, the second section surface 5342 and the fourth section surface 5344 can be prepared in the same process, thereby simplifying the manufacturing process of the second movable part 53.

[0182] Of course, in some other embodiments, the second section surface 5342 and the fourth section surface 5344 may not be in the same plane, and the height of the first step and the height of the second step only need to ensure that the minimum space required for the first elastic member 55 to deform is reserved.

[0183] In the embodiment of the present application, the third section surface 5343 is recessed toward the side of the second plane away from the first plane, and is used to form a support groove for supporting the first fulcrum element 514 of the first movable portion 51, so that the first fulcrum element 514 rotates around the Y axis under the support and limitation of the third section surface 5343. In other words, the area on the support platform 534 corresponding to the first fulcrum element 514 is provided with a support groove for supporting the first fulcrum element 514.

[0184] In some embodiments, the third section surface 5343 may be a V-shaped surface or an arcuate surface, that is, the support groove mentioned above may be a V-shaped groove or an arcuate groove. Exemplarily, the third section surface 5343 is an arcuate surface, and the third section surface 5343 may be adapted to the shape of the first arcuate surface 5141 of the first fulcrum element 514.

[0185] In some embodiments, similar to the first support portion 531, a support platform 534 may also be provided on a side of the second support portion 532 facing the first support portion 531. The support platform 534 provided on the first support portion 531 is symmetrical to the support platform 534 provided on the second support portion 532.

[0186] That is, the voice coil motor 5 may include two first fulcrum elements 514, one of the two first fulcrum elements 514 is disposed on the side of the first side wall 512 facing the first support portion 531, a bearing platform 534 is disposed on the side of the first support portion 531 facing the first side wall 512, and the first fulcrum element 514 on the first side wall 512 bears against the bearing platform 534 on the first support portion 531. The other of the two first fulcrum elements 514 is disposed on the side of the second side wall 513 facing the second support portion 532, a bearing platform 534 is disposed on the side of the second support portion 532 facing the second side wall 513, and the first fulcrum element 514 on the second side wall 513 bears against the bearing platform 534 on the second support portion 532.

[0187] In other embodiments, corresponding to the case where the second side wall 513 is provided with the second protrusion, the bearing platform 534 provided on the second supporting portion 532 may not be provided as shown in FIG. Figure 8 The structure of the second section surface 5342, the third section surface 5343 and the fourth section surface 5344 shown in the figure is different from that of the second section surface 5342, the third section surface 5343 and the fourth section surface 5344, but the second section surface 5342, the third section surface 5343 and the fourth section surface 5344 are arranged on the same plane, and the plane is recessed in the negative direction of the X-axis relative to the first plane where the first section surface 5341 and the fifth section surface 5345 are located, so as to reserve space for the first elastic member 55 to deform. In this case, the plane is also not in contact with the first fulcrum element 514.

[0188] Fig. 9 Shows Figure 6 A schematic structural diagram of the first elastic member 55 in FIG.

[0189] In the embodiment of the present application, the first elastic member 55 may include a first connecting portion, a second connecting portion and a deformation portion located between the first connecting portion and the second connecting portion, the first connecting portion is fixedly connected to the first fulcrum element 514, and the second connecting portion is fixedly connected to the supporting platform 534.

[0190] For example, Fig. 9 As shown, the first elastic member 55 includes a first end 551, a second end 552 and a connecting end 553 located between the first end 551 and the second end 552, the first end 551 and the second end 552 are used to be fixedly connected to the second movable part 53, and the connecting end 553 is used to be connected to the first movable part 51 (for example, fixedly connected or abutted). The portion of the first elastic member 55 other than the first end 551, the second end 552 and the connecting end 553 has a smaller width and greater flexibility, and can be elastically deformed under the action of force. Here, the connecting end 553 is an example of a first connecting part, and the first end 551 and the second end 552 are an example of a second connecting part. The portion between the first end 551 and the connecting end 553 and the portion between the second end 552 and the connecting end 553 are an example of a deformation portion.

[0191] It is understandable that the first elastic member 55 may also adopt other structures. For the convenience of understanding and description, the following takes the first elastic member 55 as an example. Fig. 9 The structure shown is described as an example, but the present application is not limited thereto.

[0192] In some embodiments, the connecting end 553 may be provided with a first through hole 5531 for cooperating with the first positioning column 5143 on the first movable part 51 to limit the relative position between the first elastic member 55 and the first movable part 51 and the movement of the first movable part 51 .

[0193] In some embodiments, a second through hole 5511 may be provided at the first end 551, and a third through hole 5521 may be provided at the second end 552. The second through hole 5511 and the third through hole 5521 are used to respectively cooperate with the second positioning column 5346 and the third positioning column 5347 on the second movable part 53 to limit the relative position between the first elastic member 55 and the second movable part 53.

[0194] That is, the first connection portion is provided with a first through hole (e.g., the first through hole 5531), the surface of the first fulcrum element 514 fixedly connected to the first connection portion is provided with a first positioning column (e.g., the first positioning column 5143), and the first elastic member 55 is sleeved on the first positioning column through the first through hole. The second connection portion is provided with a second through hole (e.g., the second through hole 5511 or the third through hole 5521), the surface of the support platform 534 fixedly connected to the second connection portion is provided with a second positioning column (e.g., the second positioning column 5346 or the third positioning column 5347), and the first elastic member 55 is sleeved on the second positioning column through the second through hole.

[0195] As an example but not limitation, the first elastic member 55 can be a spring leaf.

[0196] Combination of the above Figures 7 to 9 The exemplary structures of the first movable part 51, the second movable part 53 and the first elastic member 55 are respectively introduced. Figures 10 to 12 Introduce the connection relationship between the three in the assembled state.

[0197] Fig.10 A schematic diagram of assembling the first elastic member 55 and the first movable portion 51 is shown.

[0198] like Fig.10 As shown, taking the first fulcrum element 514 including the first positioning column 5143 and the connecting end 553 on the first elastic member 55 as an example, the connecting end 553 is sleeved on the first positioning column 5143 through the first through hole 5531, specifically, the connecting end 553 is in contact with the connecting surface 5142 of the first fulcrum element 514.

[0199] Fig.11 FIG. 5 is a schematic cross-sectional view of the first elastic member 55 , the first movable portion 51 and the second movable portion 53 in an assembled state. Fig.11 (a) is a schematic projection diagram of the voice coil motor 5 and the optical element 4 in the YZ plane when they are in an assembled state; Fig.11 (b) in Fig.11 (a) is a cross-sectional schematic diagram cut at AA, which is mainly used to show the connection relationship between the first elastic member 55, the first movable part 51 and the second movable part 53; Fig.11 (c) in Fig.11 (a) is a cross-sectional schematic diagram cut at BB, which is mainly used to show the positional relationship between the various components of the first actuating portion 52 for driving the optical element 4 to rotate around the Y axis; Fig.11 (d) in Fig.11 The partial enlarged schematic diagram of (b) in FIG. For ease of understanding, Fig.12The three-dimensional cross-sectional schematic diagram and the partial enlarged schematic diagram of the first elastic member 55, the first movable portion 51 and the second movable portion 53 in the assembled state are shown.

[0200] refer to Fig.11 and Fig.12 As shown, in the assembled state, the first end 551 of the first elastic member 55 is fixedly connected to the first section surface 5341 of the second movable part 53, and the second end 552 of the first elastic member 55 is fixedly connected to the fifth section surface 5345 of the second movable part 53, so that the first elastic member 55 is fixedly connected to the second movable part 53.

[0201] The connecting end 553 of the first elastic member 55 is fixedly connected to the first fulcrum element 514 of the first movable portion 51, so that the first elastic member 55 is fixedly connected to the first movable portion 51. The portion between the first end 551 and the connecting end 553 and the portion between the second end 552 and the connecting end 553 can be elastically deformed, so that the first movable portion 51 can move relative to the second movable portion 53.

[0202] In some embodiments, if the first section surface 5341 is provided with a second positioning column 5346, the fifth section surface 5345 is provided with a third positioning column 5347, the first end 551 is provided with a second through hole 5511, and the second end 552 is provided with a third through hole 5521, then the first end 551 is sleeved on the second positioning column 5346 through the second through hole 5511, and the second end 552 is sleeved on the third positioning column 5347 through the third through hole 5521. In this way, through the cooperation between the second positioning column 5346 and the second through hole 5511, and the cooperation between the third positioning column 5347 and the third through hole 5521, the relative position relationship between the first elastic member 55 and the second movable portion 53 can be limited, thereby positioning the first elastic member 55. In this way, on the one hand, it is easy to assemble, and on the other hand, when the fixed connection relationship between the first elastic member 55 and the second movable portion 53 partially or completely fails, it can prevent the first elastic member 55 from being separated from the bearing platform 534 of the second rotating space 53, thereby improving the position stability of the first elastic member 55.

[0203] The first fulcrum element 514 of the first movable part 51 is supported on the third section surface 5343 of the second movable part 53, that is, the first movable part 51 is supported on the inner wall of the supporting groove through the first arc surface 5141. The shape of the third section surface 5343 is a V-shaped surface or an arc surface, which can be adapted to the first arc surface 5141 of the first fulcrum element 514, so as to allow the first fulcrum element 514 to rotate around the Y axis in the third section surface 5343. Since the first fulcrum element 514 rotates in the third section surface 5343, the rotation center of the first fulcrum element 514 (that is, the rotation center of the first movable part, or the rotation center of the first movable part 51 and the optical element 4 in the connected state) coincides with the center of mass of the first movable part 51 and the optical element 4 after fixed connection (that is, the center of mass of the first movable part 51 and the optical element 4 in the connected state), that is, the center of mass of the first movable part 51 and the optical element 4 after fixed connection is located on the rotation center line of the first fulcrum element 514. In this way, when the first elastic member 55 produces elastic deformation, its deformation direction is relatively fixed, rather than deforming in any direction without restraint, thereby reducing the influence of the interference torque, and can reduce or avoid the movement or rotation of the voice coil motor (or the first movable part 51, or the optical element 4) in the non-required movement direction, thereby improving the motor's anti-interference ability and enhancing the imaging quality.

[0204] In some embodiments, if the first fulcrum element 514 is provided with a first positioning column 5143, and the connecting end 553 is provided with a first through hole 5531, the connecting end 553 is sleeved on the first positioning column 5143 through the first through hole 5531. Through the cooperation between the first through hole 5531 and the first positioning column 5143, the relative position relationship between the first elastic member 55 and the first movable part 51 can be limited, so as to position the first movable part 51. In this way, on the one hand, it is easy to assemble, and on the other hand, when the fixed connection relationship between the first elastic member 55 and the first movable part 51 fails partially or completely, it can prevent the first elastic member 55 from being separated from the first fulcrum element 514 of the first movable part 51, so as to improve the position stability of the first movable part 51.

[0205] In the embodiment of the present application, the first arc surface 5141 of the first fulcrum element 514 is in contact with at least a portion of the third segment surface 5343, so the friction between the first arc surface 5141 and the third segment surface 5343 can reduce or prevent the movement of the optical element 4 along the Y-axis direction, that is, reduce or prevent the movement of the voice coil motor along the Y-axis direction. In this way, the interference of the degree of freedom of the non-required movement direction on the jitter compensation process of the voice coil motor can be reduced, and the anti-shake effect of the voice coil motor can be improved.

[0206] In some embodiments, in the assembled state, there is a first preset distance in the X direction between the surface of the first fulcrum element 514 fixedly connected to the first connection part and the surface of the support platform 534 fixedly connected to the second connection part, and the first preset distance is used for the first elastic member 55 to apply a first preload to the first fulcrum element 514. That is, in the X-axis direction, there is a first preset distance between the surface of the first fulcrum element 514 in contact with the first elastic member 55 (e.g., the connection surface 5142) and the surface of the second movable portion 53 in contact with the first elastic member 55 (e.g., the first section surface 5341 or the fifth section surface 5345), wherein the surface of the first fulcrum element 514 in contact with the first elastic member 55 is closer to the positive direction of the X-axis. The setting of the first preset distance allows the first elastic member 55 to bend to a certain extent in the assembled state, and the bending can apply a first preload to the first fulcrum element 514, so that the first fulcrum element 514 is close to the third section surface 5343. In this way, on the one hand, the friction between the first arc surface 5141 and the third segment surface 5343 can be increased, further reducing the movement of the optical element 4 along the Y-axis direction; on the other hand, the first pre-pressure can limit the movement of the optical element 4 along the X-axis direction driven by the first movable part 51, reducing the degree of freedom of the optical element 4 in the non-required movement direction. In addition, due to the existence of the first pre-pressure, the position difference of the first movable part 51 when the camera module is in different postures can be reduced, thereby reducing the sensitivity difference under different postures and improving the anti-shake effect.

[0207] refer to Fig.11 As shown in (c) in the figure, the first actuating portion 52 includes a first magnet 521 and a first coil 522 which are arranged opposite to each other along the X-axis direction, the first magnet 521 is fixedly connected to the first movable portion 51, and the first coil 522 is fixedly connected to the fixed portion 57. When the first coil 522 is energized, the first magnet 521 is subjected to a force F as shown in the direction of the arrow in the figure under the action of the magnetic field of the first coil 522. Under this force, the first magnet 521 drives the first movable portion 51 to rotate around the Y-axis with the first fulcrum element 514 as the fulcrum.

[0208] In About Figure 6 It is mentioned in the introduction that the second movable portion 53 is connected to the fixed portion 57, which will be described in more detail below with reference to the accompanying drawings.

[0209] Fig.13 Shows Figure 6 A schematic structural diagram of the fixing portion 57 in FIG.

[0210] like Fig.13As shown, the fixed portion 57 may include a bottom wall 574 and a third side wall 571, a fourth side wall 572 and a fifth side wall 573 extending from the edge of the bottom wall 574 toward the positive direction of the X axis. The fourth side wall 572 and the fifth side wall 573 are arranged opposite to each other in the Y axis direction, and the two ends of the third side wall 571 in the Y axis direction are respectively connected to the fourth side wall 572 and the fifth side wall 573. The third side wall 571 is also used for being movably connected to the second movable portion 53.

[0211] Each wall of the fixing portion 57 forms a second accommodation space, and the second accommodation space is used to accommodate the second movable portion 53 , the first movable portion 51 and the optical element 4 .

[0212] Fig.14 Shows Figure 6 A schematic structural diagram and a partial enlarged diagram of the second movable part 53 in FIG.

[0213] like Fig.14 As shown, the second movable portion 53 includes a first supporting portion 531, a second supporting portion 532 and a third supporting portion 533. The first supporting portion 531 and the second supporting portion 532 are arranged opposite to each other in the Y-axis direction, and the two ends of the third supporting portion 533 in the Y-axis direction are respectively connected to the first supporting portion 531 and the second supporting portion 532. The third supporting portion 533 is used to be movably connected to the fixed portion 57. In the assembled state, the third supporting portion 533 is arranged opposite to the third side wall 571 of the fixed portion 57.

[0214] In the embodiment of the present application, the second movable portion 53 and the fixed portion 57 can be movably connected through the cooperation between the protrusion and the groove or the cooperation between the ball and the groove.

[0215] Exemplary, reference Fig.13 The third side wall 571 is provided with a first groove 5711, a second groove 5712 and a third groove 5713 on one side facing the third supporting portion 533, and the second groove 5712 and the third groove 5713 are provided on both sides of the first groove 5711 in the X direction. The second groove 5712 and the third groove 5713 are on the same straight line, or it can be understood that the projection of the center line of the second groove 5712 in the X direction in the XY plane coincides with the projection of the center line of the third groove 5713 in the X direction in the XY plane.

[0216] refer to Fig.14The third support portion 533 is provided with a fourth groove 5331 and a fifth groove 5332 on one side facing the third side wall 571. The fourth groove 5331 and the fifth groove 5332 are on the same straight line, or it can be understood that the projection of the center line of the fourth groove 5331 in the X direction in the XY plane coincides with the projection of the center line of the fifth groove 5332 in the X direction in the XY plane. In the assembled state, the fourth groove 5331 is arranged opposite to the second groove 5712, and the fifth groove 5332 is arranged opposite to the third groove 5713.

[0217] Fig.15 A cross-sectional schematic diagram of the second movable portion 53 and the fixed portion 57 in an assembled state is shown.

[0218] In some embodiments, Fig.15 As shown, the chamber formed by the fourth groove 5331 and the second groove 5712 in the assembled state is used to accommodate the first ball 601, wherein the first ball 601 is partially located in the fourth groove 5331 and partially located in the second groove 5712. The chamber formed by the fifth groove 5332 and the third groove 5713 in the assembled state is used to accommodate the second ball 602, wherein the second ball 602 is partially located in the fifth groove 5332 and partially located in the third groove 5713.

[0219] The first rolling ball 601 may be fixed in the fourth groove 5331 or in the second groove 5712. The second rolling ball 602 may be fixed in the fifth groove 5332 or in the third groove 5713.

[0220] Taking the first ball 601 as an example, for example, Fig.15 As shown, the first hemispherical surface of the first rolling ball 601 can be fixed in the fourth groove 5331 by gluing or the like, and the second hemispherical surface of the first rolling ball 601 is in contact with the inner wall of the second groove 5712. Of course, it can be understood that in some other embodiments, the first hemispherical surface of the first rolling ball 601 can be fixed in the second groove 5712 by gluing or the like, and the second hemispherical surface of the first rolling ball 601 is in contact with the inner wall of the fourth groove 5331, and the embodiment of the present application is not limited to this.

[0221] When pre-pressure is applied between the second movable part 53 and the fixed part 57, the fourth groove 5331 and the second groove 5712 engage the first ball 601, and the fifth groove 5332 and the third groove 5713 engage the second ball 602. Under the constraint of the fourth groove 5331 and the second groove 5712 on the first ball 601 and the constraint of the fifth groove 5332 and the third groove 5713 on the second ball 602, the line between the center of the ball (or center of mass, or center) of the first ball 601 and the center of the ball (or center of mass, or center) of the second ball 602 is parallel to the X-axis direction. The movable connection between the second movable part 53 and the fixed part 57 can be achieved by sliding between the first ball 601 and the surface of the groove (for example, the second groove 5712) and between the second ball 602 and the surface of the groove (for example, the third groove 5713), wherein the second movable part 53 can rotate around the X-axis relative to the fixed part 57 under the drive of the second actuating part 54. It can be understood that the rotation center line of the second movable part 53 coincides with the line connecting the center of the first ball 601 and the center of the second ball 602 .

[0222] In the embodiment of the present application, since the second movable part 53 has two fulcrums in the X-axis direction, and the second groove 5712 and the third groove 5713 limit the first ball 601 and the second ball 602 in the Y direction, the stability of the rotation around the X-axis can be improved, and the rotation of the optical element 4 around the Z-axis can be reduced or avoided, that is, the rotation of the voice coil motor around the Z-axis can be reduced or avoided. In this way, the degree of freedom of the optical element 4 in the non-required movement direction can be reduced, and the interference of the degree of freedom in the non-required movement direction on the jitter compensation process of the voice coil motor can be reduced, thereby improving the anti-shake effect of the voice coil motor. In addition, the two fulcrums of the second movable part 53 in the X-axis direction can disperse the impact, avoiding the influence of the anti-shake effect on the anti-shake effect due to impact deformation when using a single ball.

[0223] In some embodiments, the second groove 5712 and the third groove 5713 may both be V-shaped grooves. Taking the second groove 5712 as an example, the cross section of the second groove 5712 in the YZ plane is V-shaped, or the extension direction of the V-shaped groove is parallel to the X-axis direction. The two sides of the V-shaped groove may contact the ball bearings to support the ball bearings, and may inhibit the second movable portion 53 from rotating around the Z-axis during its rotation around the X-axis.

[0224] In some embodiments, the second groove 5712 and the third groove 5713 can both be conical grooves, such as a conical groove, a truncated cone groove, a pyramid groove, etc. Take the second groove 5712 as an example, that is, the cross-sectional area of ​​the second groove 5712 in the XY plane gradually decreases along the negative direction of the Z axis, or in other words, the side walls of the second groove 5712 gradually approach each other along the negative direction of the Z axis. The side walls of the conical groove can position the balls (such as the first ball 601 or the second ball 602), that is, the balls cannot move linearly in the X direction and the Y direction in the conical groove. In this way, the relative position relationship between the second movable portion 53 and the fixed portion 57 can be limited, and the movement of the optical element 4 along the X direction and the movement along the Y direction can be reduced or avoided, thereby reducing the degree of freedom of the optical element 4 in the non-required movement direction.

[0225] In some embodiments, one of the second groove 5712 and the third groove 5713 is a conical groove, and the other is a V-shaped groove. This allows the ball to be positioned through the conical groove to reduce the freedom of the optical element 4 in non-required movement directions, and the V-shaped groove can also absorb installation errors to reduce assembly difficulty.

[0226] It can be understood that the above groove type setting mode for the second groove 5712 and the third groove 5713 is based on the fixing of the ball to the second movable part 53. In other embodiments, when the ball is fixed to the fixing part 57, the above groove type setting mode is applicable to the fourth groove 5331 and the fifth groove 5332 on the third supporting part 533, that is, the fourth groove 5331 or the fifth groove 5332 is one of a tapered groove or a V-shaped groove, which will not be described in detail for simplicity.

[0227] The above combination Fig.15 The method of realizing the movable connection between the second movable part 53 and the fixed part 57 by the cooperation of the ball and the groove is mainly introduced. Fig.16 The following describes a method of realizing movable connection between the second movable portion 53 and the fixed portion 57 through cooperation between the protrusion and the groove.

[0228] Fig.16 A cross-sectional schematic diagram of the second movable portion 53 and the fixed portion 57 in an assembled state is shown.

[0229] like Fig.16 As shown, the third support portion 533 may not be provided with Fig.14The fourth groove 5331 and the fifth groove 5332 are shown, and the third protrusion 5334 and the fourth protrusion 5335 are arranged on the side of the third supporting portion 533 facing the fixing portion 57, and the third protrusion 5334 and the fourth protrusion 5335 are arranged along the X-axis direction, wherein the third protrusion 5334 is received in the second groove 5712, and the fourth protrusion 5335 is received in the third groove 5713. Here, the surface of the third protrusion 5334 in contact with the second groove 5712 is an arc surface, and the surface of the fourth protrusion 5335 in contact with the third groove 5713 is an arc surface.

[0230] In other words, the third protrusion 5334 includes a second arc surface 5336, and the fourth protrusion 5335 includes a third arc surface 5337. The second arc surface 5336 contacts the inner wall of the second groove 5712, and the third arc surface 5337 contacts the inner wall of the third groove 5713. When the second movable portion 53 rotates around the X-axis, the second arc surface 5336 slides relative to the inner wall of the second groove 5712, and the third arc surface 5337 slides relative to the inner wall of the third groove 5713.

[0231] In some embodiments, the line between the center (or spherical center) of the second curved surface 5336 and the center (or spherical center) of the third curved surface 5337 is parallel to the X axis. The rotation center line of the second movable portion 53 coincides with the line between the center (or spherical center) of the second curved surface 5336 and the center (or spherical center) of the third curved surface 5337.

[0232] Of course, it can be understood that in some other embodiments, the third support portion 533 is provided with Fig.14 The fourth groove 5331 and the fifth groove 5332 are shown, and the side of the fixing portion 57 facing the second movable portion 53 can be provided as follows Fig.16 The third protrusion 5334 and the fourth protrusion 5335 shown, that is, the positions of the protrusion and the groove are interchanged, which can also achieve the movable connection between the second movable part 53 and the fixed part 57.

[0233] In some embodiments, the third protrusion 5334 and the fourth protrusion 5335 may be integrally formed with the third supporting portion 533 .

[0234] In some embodiments, the third protrusion 5334 and the fourth protrusion 5335 may be made of plastic material, which can reduce the friction between the third protrusion 5334 and the inner wall of the second groove 5712 and the friction between the fourth protrusion 5335 and the inner wall of the third groove 5713 when the second movable portion 53 rotates around the X-axis.

[0235] In some embodiments, lubricating oil may be applied to the inner wall of the second groove 5712 and the inner wall of the third groove 5713 to reduce friction.

[0236] In summary, one of the second movable portion 53 and the fixed portion 57 is a first component, and the other is a second component. The first component is provided with a second fulcrum element (e.g., the first ball 601 or the third protrusion 5334) and a third fulcrum element (e.g., the second ball 602 or the fourth protrusion 5335) arranged along the X-axis direction, the second fulcrum element and the third fulcrum element are fixedly connected to the second component, the second fulcrum element includes a second arc surface (e.g., the spherical surface of the first ball 601 or the second arc surface 5336 on the fourth protrusion 5335), and the third fulcrum element includes a third arc surface (e.g., the spherical surface of the second ball 602 or the third arc surface 5337 on the third protrusion 5334). The second component is provided with a second groove (e.g., the second groove 5712) and a third groove (e.g., the third groove 5713) arranged along the X-axis direction, the second groove is used to accommodate at least part of the second fulcrum element, and the inner wall of the second groove is in contact with the second arc surface, and the third groove is used to accommodate at least part of the third fulcrum element, and the inner wall of the third groove is in contact with the third arc surface. When the second actuating portion 54 drives the second movable portion 53 to rotate around the X-axis direction, the second arc surface bears against the inner wall of the second groove, and the third arc surface bears against the inner wall of the third groove, so as to limit the rotation of the second movable portion 53 around the Z-axis direction.

[0237] In some embodiments, a line between a rotation center of the second arc surface and a rotation center of the third arc surface is parallel to the X-axis direction.

[0238] As described above, in some embodiments, the second fulcrum element and the third fulcrum element are balls. Alternatively, the second fulcrum element and the third fulcrum element are protrusions extending from the first component toward the second component.

[0239] In the embodiment of the present application, in order to prevent the second movable portion 53 from being separated from the fixed portion 57 , it is necessary to provide a pre-pressure between the second movable portion 53 and the fixed portion 57 .

[0240] In some embodiments, the pre-pressure between the second movable portion 53 and the fixed portion 57 may be provided by magnetic attraction.

[0241] refer to Fig.15 and Fig.16 As shown, the first groove 5711 disposed between the second groove 5712 and the third groove 5713 of the third side wall 571 is used to accommodate the third magnet 59, for example, the third magnet 59 is fixedly disposed in the first groove 5711. A magnetic conductive member 603 is disposed in the area of ​​the third support portion 533 facing the first groove 5711. The magnetic attraction between the third magnet 59 and the magnetic conductive member 603 can provide a pre-pressure between the second movable portion 53 and the fixed portion 57, that is, the magnetic attraction between the third magnet 59 and the magnetic conductive member 603 is used to apply a pre-pressure to the second fulcrum element and the third fulcrum element.

[0242] In some embodiments, the pre-compression state between the second movable portion 53 and the fixed portion 57 can be changed by adjusting the magnetic force of the third magnet 59 , thereby enabling iterative evolution of the motor architecture.

[0243] In some embodiments, the pre-pressure between the second movable portion 53 and the fixed portion 57 may be provided by elastic deformation of the elastic member.

[0244] Fig.17 FIG. 5 shows a schematic structural diagram of the second elastic member 56 provided in an embodiment of the present application. Fig.17 As shown, the second elastic member 56 includes a third end 561, a fourth end 562 and a cantilever 563 located between the third end 561 and the fourth end 562. The third end 561 (or the third connecting portion) is used to be fixedly connected to the fixing portion 57, and the fourth end 562 (or the fourth connecting portion) is used to be fixedly connected to the second movable portion 53. The cantilever 563 has a small width and a large flexibility, and can be elastically deformed under the action of a force.

[0245] In the embodiment of the present application, there is a second preset distance in the Z-axis direction between the surface of the fixed portion 57 fixedly connected to the third end 561 and the surface of the second movable portion 53 fixedly connected to the fourth end 562, and the second preset distance is used for the second elastic member 56 to apply pre-pressure to the second fulcrum element and the third fulcrum element.

[0246] For example, Fig.18 FIG. 5 shows a partial enlarged schematic diagram of the second movable portion 53 and the fixed portion 57 in the assembled state. Fig.18 As shown, taking the second elastic member 56 connecting the first support portion 531 of the second movable portion 53 and the fifth side wall 573 of the fixed portion 57 as an example, the third end 561 of the second elastic member 56 is fixedly connected to the end surface of the fifth side wall 573 facing the positive direction of the Z axis, and the fourth end 562 of the second elastic member 56 is fixedly connected to the end surface of the first support portion 531 facing the positive direction of the Z axis. There is a second preset distance in the Z axis direction between the end surface of the first support portion 531 facing the positive direction of the Z axis and the end surface of the fifth side wall 573 facing the positive direction of the Z axis, wherein the end surface of the first support portion 531 facing the positive direction of the Z axis is closer to the positive direction of the Z axis. The setting of the second preset distance allows the second elastic member 56 to deform to a certain extent in the assembled state, and the deformation can apply a second pre-pressure to the second movable portion 53, so that the third support portion 533 of the second movable portion 53 is close to the fixed portion 57 at the fulcrum. In addition, due to the existence of the second pre-pressure, the position difference of the second movable part 52 when the camera module is in different postures can be reduced, thereby reducing the sensitivity difference in different postures and improving the anti-shake effect.

[0247] In some embodiments, the pre-compression state between the second movable portion 53 and the fixed portion 57 can be changed by adjusting the size of the second preset distance, thereby enabling iterative evolution of the motor architecture.

[0248] In some embodiments, the voice coil motor 5 may include two second elastic elements 56. An end surface of the fourth side wall 572 away from the third side wall 571 in the Z-axis direction is connected to an end surface of the second support portion 532 away from the third support portion 533 in the Z-axis direction through one of the two second elastic elements 56, and an end surface of the fifth side wall 573 away from the third side wall 571 in the Z-axis direction is connected to an end surface of the first support portion 531 away from the third support portion 533 in the Z-axis direction through the other of the two second elastic elements 56.

[0249] It can be understood that the second supporting portion 532 of the second movable portion 53 and the fourth side wall 572 of the fixed portion 57 can also be connected via the second elastic member 56. In this way, by applying pre-pressure to the symmetrical parts of the second movable portion 53, the stability of the structure can be improved.

[0250] As an example but not a limitation, the second elastic element 56 can be a spring leaf.

[0251] In some embodiments, the magnetic attraction method and the elastic deformation method of the elastic member can be combined to form a pre-pressure between the second movable part 53 and the fixed part 57, which can ensure that the pre-pressure state between the second movable part 53 and the fixed part 57 is adjustable and improve the reliability of the pre-pressure application.

[0252] Fig.19 A schematic diagram of the assembly of an optical image stabilization component provided in an embodiment of the present application is shown.

[0253] By way of example and not limitation, see Fig.19 As shown in (a), (b) and (c), the first actuating part 52 for driving the first movable part 51 to rotate around the Y-axis includes a first magnet 521 and a first coil 522, wherein the first coil 522 can be fixed to the bottom wall 574 of the fixed part 57, and the first magnet 521 can be fixed to the first main body 511 of the first movable part 51, and the first magnet 521 and the first coil 522 are arranged opposite to each other.

[0254] The second actuating part 54 for driving the second movable part 51 to rotate around the X-axis includes two groups of second magnets 541 and second coils 542, wherein the two second coils 542 can be respectively fixed to the fourth side wall 572 and the fifth side wall 573 of the fixed part 57, and the two second magnets 541 can be respectively fixed to the first supporting part 531 and the second supporting part 532 of the second movable part 53, and the second magnets 541 and the second coils 542 of the same group are arranged opposite to each other.

[0255] The hinge part for realizing the movable connection between the second movable part 51 and the fixed part 57 may include a first ball 601 and a second ball 602. Part of the first ball 601 is fixed to the fourth groove 5331 of the third support part 533, and the part of the first ball 601 exposed outside the fourth groove 5331 can be accommodated in the second groove 5712 provided on the third side wall 571 and supported by the inner wall of the second groove 5712. Part of the second ball 602 is fixed to the fifth groove 5332 of the third support part 533, and the part of the second ball 602 exposed outside the fifth groove 5332 can be accommodated in the third groove 5713 provided on the third side wall 571 and supported by the inner wall of the third groove 5713.

[0256] When pre-pressure is applied between the second movable part 53 and the fixed part 57, the third magnet 59 is fixed in the first groove 5711 provided on the third side wall 571, and the magnetic conductive member 603 is provided in the area corresponding to the first groove 5711 on the third support part 533. The third magnet 59 and the magnetic conductive member 603 attract each other under the action of magnetic force.

[0257] It should be noted that, in the embodiment of the present application, in order to reduce the freedom of the voice coil motor in the non-required movement direction, the freedom of the first movable part 51 can be limited by the cooperation between the arc surface and the support groove, and / or the freedom of the second movable part 53 can be limited by the cooperation between the two fulcrum elements and the two grooves. That is, the voice coil motor provided in the embodiment of the present application can have the following features: Figures 7 to 12 The structure described, and / or having Figures 13 to 19 The structure described is not limited in this application.

[0258] In the optical image stabilization assembly provided in the embodiment of the present application, the voice coil motor 5 drives the optical element 4 to rotate around the Y axis through the first movable part 51, and drives the optical element 4 to rotate around the X axis through the second movable part 53. The degree of freedom of rotation of the optical element 4 around the X axis is decoupled from the degree of freedom of rotation around the Y axis, thereby reducing the motion crosstalk in the other direction when the voice coil motor 5 performs jitter compensation in the X direction or the Y direction, thereby improving the image stabilization effect.

[0259] It can be understood that since the first movable part is fixedly connected to the optical element and the first movable part drives the optical element to move, the rotation or movement of the first movable part can be replaced by the rotation or movement of the optical element. Since the second movable part is connected to the first movable part and the second movable part drives the first movable part to move, the rotation or movement of the second movable part can be replaced by the rotation or movement of the first movable part, or the rotation or movement of the optical element. In addition, the movement of the optical element, the movement of the first movable part, and the movement of the second movable part can all be considered as the movement of the voice coil motor.

[0260] When the periscope camera module structure provided in the embodiment of the present application is applied to an electronic device, the electronic device can be made thinner and more compact. At the same time, since the periscope camera module does not need to protrude from the electronic device body, it also avoids the situation where the protruding part of the camera module is easily damaged due to accidents during shooting.

[0261] The embodiment of the present application also provides an electronic device 1000, Fig. 20 It is a control principle diagram of the electronic device 1000 provided in this application.

[0262] like Fig. 20 As shown, the electronic device 1000 includes a gyroscope, a processing unit and a camera module 800, and the camera module 800 includes a voice coil motor 810 and an optical element 820. Among them, the gyroscope is used to collect the jitter information of the electronic device 1000, and send the jitter information to the processing unit, and the processing unit is used to control the voice coil motor 810 according to the jitter information. Specifically, the voice coil motor 810 drives the optical element 820 to rotate in two degrees of freedom to perform jitter compensation. In the embodiment of the present application, the voice coil motor 810 can be the voice coil motor 5 introduced in the aforementioned embodiment, and the optical element 820 can be the optical element 4 introduced in the aforementioned embodiment.

[0263] Furthermore, the processing unit can control the voice coil motor 810 through the anti-shake chip of the voice coil motor 810. At this time, the processing unit can calculate the jitter compensation information of the optical element 820 according to the jitter information, and send the jitter compensation information to the anti-shake chip, which is used to control the driving current of the voice coil motor 810 (i.e., control the magnitude and direction of the direct current in the coil) according to the jitter compensation information, so that the voice coil motor 810 drives the optical element 820 to rotate.

[0264] The electronic device 1000 further includes a housing and a display screen. The gyroscope and the processing unit are disposed in the housing. The display screen and the camera module 800 are mounted on the housing. The display screen is used to display images captured by the camera module 800.

[0265] Optionally, the gyroscope is a micro electro mechanical system (MEMS) gyroscope.

[0266] Optionally, the housing may be a metal housing, such as magnesium alloy, stainless steel, etc. In addition, it may also be a plastic housing, a glass housing, a ceramic housing, etc., but is not limited thereto.

[0267] Optionally, the display screen may be a light emitting diode (LED) display screen, a liquid crystal display (LCD) display screen, or an organic light-emitting diode (OLED) display screen, but is not limited thereto.

[0268] Optionally, the housing may further include other components, such as a battery, a flash, a fingerprint recognition module, an earpiece, a circuit board, a sensor, etc., but is not limited thereto.

[0269] Optionally, the electronic device 1000 may be a terminal device with a video or photographing function, such as a mobile phone, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, an intelligent robot, a vehicle-mounted monitoring device, or other devices with a video or photographing function.

[0270] Since the electronic device 1000 adopts the voice coil motor 5 provided in the aforementioned embodiment, the electronic device 1000 also has the technical effects corresponding to the voice coil motor 5 , which will not be described in detail here.

[0271] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A voice coil motor, characterized in that: include: Fixed part; A first movable portion, used for fixedly connecting with an optical element, wherein the optical element is used for adjusting light incident along a first direction to be transmitted along a second direction, wherein the second direction is perpendicular to the first direction; a first actuating portion, configured to drive the first movable portion to rotate relative to the fixed portion about a third direction, wherein the third direction is perpendicular to the first direction and perpendicular to the second direction; a second movable part, connected to the first movable part through a first elastic member, and the second movable part is used to support the first movable part; a second actuating portion, configured to drive the second movable portion to rotate relative to the fixed portion around the first direction; Wherein, the second movable part is provided with a bearing platform; The first elastic member includes a first connecting portion, a second connecting portion, and a deformation portion located between the first connecting portion and the second connecting portion. The first connecting portion is fixedly connected to the first movable portion, and the second connecting portion is fixedly connected to the supporting platform.

2. The voice coil motor according to claim 1, characterized in that: The bearing platform includes a supporting groove, the first movable part is provided with a first fulcrum element, the first fulcrum element includes a first arc surface, and the first movable part is supported on the inner wall of the supporting groove through the first arc surface; The first connecting portion is fixedly connected to the first fulcrum element; When the first actuating portion drives the first movable portion, the first arc surface rotates in the supporting groove around the third direction to limit the deformation direction of the deformation portion.

3. The voice coil motor according to claim 1, characterized in that: The rotation center and the center of mass of the first movable part and the optical element in the connected state coincide with each other.

4. The voice coil motor according to claim 1 or 3, characterized in that: The supporting groove is a V-shaped groove or an arc-shaped groove.

5. The voice coil motor according to any one of claims 1 to 4, characterized in that: There is a first preset distance in the first direction between the surface of the first fulcrum element fixedly connected to the first connecting part and the surface of the supporting platform fixedly connected to the second connecting part, and the first preset distance is used for the first elastic member to apply a first pre-pressure to the first fulcrum element.

6. The voice coil motor according to any one of claims 1 to 5, characterized in that: The first connecting portion is provided with a first through hole, a surface of the first fulcrum element fixedly connected to the first connecting portion is provided with a first positioning column, and the first elastic member is sleeved on the first positioning column through the first through hole; The second connecting portion is provided with a second through hole, a surface of the supporting platform fixedly connected to the second connecting portion is provided with a second positioning column, and the first elastic member is sleeved on the second positioning column through the second through hole.

7. The voice coil motor according to any one of claims 1 to 6, characterized in that: The table surface of the carrying table includes a first section surface, a second section surface, a third section surface, a fourth section surface and a fifth section surface which are sequentially connected in the second direction; The first section surface and the fifth section surface are located in a first plane perpendicular to the first direction, and the first section surface and the fifth section surface are used to be fixedly connected to the first connecting portion; The second section surface and the fourth section surface are located in a second plane perpendicular to the first direction, the second plane is lower than the first plane in the first direction, wherein the distance between the second section surface and the first plane and the distance between the fourth section surface and the first plane are used to provide a deformation space for the deformation portion; The third section is recessed on a side facing the second plane away from the first plane to form the supporting groove.

8. The voice coil motor according to any one of claims 1 to 7, characterized in that: The voice coil motor comprises two of the first fulcrum elements; The first movable portion includes a first side wall and a second side wall which are arranged opposite to each other in the third direction, and the second movable portion includes a first supporting portion and a second supporting portion which are arranged opposite to each other in the third direction, wherein the first supporting portion is located on a side of the first side wall away from the second side wall, and the second supporting portion is located on a side of the second side wall away from the first side wall; One of the two first fulcrum elements is disposed on a side of the first side wall facing the first supporting portion, the bearing platform is disposed on a side of the first supporting portion facing the first side wall, and the first fulcrum element on the first side wall bears against the bearing platform on the first supporting portion; Another of the two first fulcrum elements is disposed on the side of the second side wall facing the second supporting portion, the supporting platform is disposed on the side of the second supporting portion facing the second side wall, and the first fulcrum element on the second side wall bears against the supporting platform on the second supporting portion.

9. The voice coil motor according to any one of claims 1 to 8, characterized in that: The first fulcrum element is a D-shaped shaft.

10. The voice coil motor according to any one of claims 1 to 9, characterized in that: The first fulcrum element and the first movable part are formed integrally.

11. The voice coil motor according to any one of claims 1 to 10, characterized in that: One of the second movable part and the fixed part is a first component, and the other of the second movable part and the fixed part is a second component; The first component is provided with a second fulcrum element and a third fulcrum element arranged along the first direction, the second fulcrum element and the third fulcrum element are fixedly connected to the second component, the second fulcrum element includes a second arc surface, and the third fulcrum element includes a third arc surface; The second component is provided with a second groove and a third groove arranged along the first direction, the second groove is used to receive at least part of the second fulcrum element, and the inner wall of the second groove is in contact with the second arc surface, and the third groove is used to receive at least part of the third fulcrum element, and the inner wall of the third groove is in contact with the third arc surface; When the second actuating portion drives the second movable portion to rotate around the first direction, the second arc surface bears against the inner wall of the second groove, and the third arc surface bears against the inner wall of the third groove to limit the rotation of the second movable portion around the second direction.

12. The voice coil motor according to claim 11, characterized in that: A line between a rotation center of the second arc surface and a rotation center of the third arc surface is parallel to the first direction.

13. The voice coil motor according to claim 11 or 12, characterized in that: The second fulcrum element and the third fulcrum element are balls; or, the second fulcrum element and the third fulcrum element are protrusions extending from the first component toward the second component.

14. The voice coil motor according to any one of claims 11 to 13, characterized in that: The second groove is a tapered groove or a V-shaped groove; and / or The third groove is a tapered groove or a V-shaped groove.

15. The voice coil motor according to claim 14, characterized in that: When the second groove and / or the third groove is a V-shaped groove, the extending direction of the V-shaped groove is parallel to the first direction.

16. The voice coil motor according to claim 14 or 15, characterized in that: When the second groove and / or the third groove is a tapered groove, the tapered groove is used to limit the movement of the second movable component along the first direction.

17. The voice coil motor according to any one of claims 11 to 16, characterized in that: The voice coil motor also includes a second elastic member, which includes a third connecting part, a fourth connecting part and a cantilever located between the third connecting part and the fourth connecting part, the third connecting part is fixedly connected to the fixed part, and the fourth connecting part is fixedly connected to the second movable part.

18. The voice coil motor according to claim 17, characterized in that: There is a second preset distance in the second direction between the surface of the fixed part fixedly connected to the third connecting part and the surface of the second movable part fixedly connected to the fourth connecting part, and the second preset distance is used for the second elastic member to apply a second pre-pressure to the second fulcrum element and the third fulcrum element.

19. The voice coil motor according to claim 17 or 18, characterized in that: The voice coil motor comprises two of the second elastic elements; The second movable portion includes a first supporting portion and a second supporting portion arranged opposite to each other in the third direction and a third supporting portion for connecting the first supporting portion and the second supporting portion, wherein the third supporting portion is perpendicular to the second direction; The fixing portion includes a fourth side wall and a fifth side wall that are arranged opposite to each other in the third direction and a third side wall for connecting the fourth side wall and the fifth side wall, the third side wall is perpendicular to the second direction, the fourth side wall is located on a side of the second supporting portion away from the first supporting portion, and the fifth side wall is located on a side of the first supporting portion away from the second supporting portion; The end surface of the fourth side wall in the second direction away from the third side wall is connected to the end surface of the second support portion in the second direction away from the third support portion through one of the two second elastic elements, and the end surface of the fifth side wall in the second direction away from the third side wall is connected to the end surface of the first support portion in the second direction away from the third support portion through the other of the two second elastic elements.

20. The voice coil motor according to any one of claims 17 to 19, characterized in that: The second component is provided with a first groove located between the second groove and the third groove, and the first groove is used to accommodate the magnetic element; The first component is provided with a magnetic conductive member located between the second fulcrum element and the third fulcrum element, and the magnetic force between the magnetic conductive member and the magnetic element is used to apply a third pre-pressure to the second fulcrum element and the third fulcrum element.

21. A voice coil motor, characterized in that: include: Fixed part; A movable portion, used for fixedly connecting with an optical element, wherein the optical element is used for adjusting light incident along a first direction to be transmitted along a second direction, wherein the second direction is perpendicular to the first direction; an actuating portion, configured to drive the movable portion to rotate relative to the fixed portion around the first direction; wherein one of the movable part and the fixed part is a first component, and the other of the movable part and the fixed part is a second component; The first component is provided with a second fulcrum element, the second fulcrum element is fixedly connected to the second component, and the second fulcrum element includes a second arc surface; The second component is provided with a second groove, the second groove is used to accommodate at least a portion of the second fulcrum element, and the inner wall of the second groove is in contact with the second arc surface; When the actuating portion drives the movable portion to rotate around the first direction, the second arc surface bears against the inner wall of the second groove to limit the rotation of the movable portion around the second direction.

22. The voice coil motor according to claim 21, characterized in that: The first component is provided with a third fulcrum element, the second fulcrum element and the third fulcrum element are arranged along the first direction, the third fulcrum element is fixedly connected to the second component, and the third fulcrum element includes a third arc surface; The second component is provided with a third groove, the second groove and the third groove are arranged along the first direction, the third groove is used to accommodate at least part of the third fulcrum element, and the inner wall of the third groove is in contact with the third arc surface; When the actuating portion drives the movable portion to rotate around the first direction, the third arc surface bears against the inner wall of the third groove.

23. The voice coil motor according to claim 22, characterized in that: A line between a rotation center of the second arc surface and a rotation center of the third arc surface is parallel to the first direction.

24. The voice coil motor according to claim 22 or 23, characterized in that: The second fulcrum element and the third fulcrum element are balls; or, the second fulcrum element and the third fulcrum element are protrusions extending from the first component toward the second component.

25. The voice coil motor according to any one of claims 21 to 24, characterized in that: The second groove is a tapered groove or a V-shaped groove; and / or The third groove is a tapered groove or a V-shaped groove.

26. The voice coil motor according to claim 25, characterized in that: When the second groove and / or the third groove is a V-shaped groove, the extending direction of the V-shaped groove is parallel to the first direction.

27. The voice coil motor according to claim 25 or 26, characterized in that: When the second groove and / or the third groove is a tapered groove, the tapered groove is used to limit the movement of the movable component along the first direction.

28. The voice coil motor according to any one of claims 21 to 27, characterized in that: The voice coil motor also includes an elastic member, which includes a third connecting portion, a fourth connecting portion and a cantilever located between the third connecting portion and the fourth connecting portion, the third connecting portion is fixedly connected to the fixed portion, and the fourth connecting portion is fixedly connected to the movable portion.

29. The voice coil motor according to claim 28, characterized in that: There is a second preset distance in the second direction between the surface of the fixed part fixedly connected to the third connecting part and the surface of the movable part fixedly connected to the fourth connecting part, and the second preset distance is used for the elastic member to apply a second pre-pressure to the second fulcrum element and the third fulcrum element.

30. The voice coil motor according to claim 28 or 29, characterized in that: The voice coil motor comprises two elastic elements; The movable portion includes a first supporting portion and a second supporting portion arranged opposite to each other in a third direction and a third supporting portion for connecting the first supporting portion and the second supporting portion, wherein the third supporting portion is perpendicular to the second direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction; The fixing portion includes a fourth side wall and a fifth side wall that are arranged opposite to each other in the third direction and a third side wall for connecting the fourth side wall and the fifth side wall, the third side wall is perpendicular to the second direction, the fourth side wall is located on a side of the second supporting portion away from the first supporting portion, and the fifth side wall is located on a side of the first supporting portion away from the second supporting portion; The end surface of the fourth side wall in the second direction away from the third side wall is connected to the end surface of the second support portion in the second direction away from the third support portion through one of the two elastic elements, and the end surface of the fifth side wall in the second direction away from the third side wall is connected to the end surface of the first support portion in the second direction away from the third support portion through the other of the two elastic elements.

31. The voice coil motor according to any one of claims 28 to 30, characterized in that: The second component is provided with a first groove located between the second groove and the third groove, and the first groove is used to accommodate the magnetic element; The first component is provided with a magnetic conductive member located between the second fulcrum element and the third fulcrum element, and the magnetic force between the magnetic conductive member and the magnetic element is used to apply a third pre-pressure to the second fulcrum element and the third fulcrum element.

32. An optical image stabilization component, characterized in that: It comprises an optical element and a voice coil motor as described in any one of claims 1 to 31, wherein the optical element is fixedly connected to the voice coil motor, wherein the optical element is used to adjust light incident along a first direction to be transmitted along a second direction, and the voice coil motor is used to drive the optical element to rotate.

33. A camera module, characterized in that: It comprises a lens group, an image sensor and the optical image stabilization assembly as claimed in claim 32, wherein the lens group is used to project the light incident from the optical element onto the image sensor after processing.

34. An electronic device, characterized in that: It includes a gyroscope, a processing unit and a camera module as described in claim 33, wherein the gyroscope is used to collect jitter information of the electronic device and send the jitter information to the processing unit, and the processing unit is used to control the voice coil motor to drive the optical element for jitter compensation according to the jitter information.

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